Aruba Layer 3—IP Services User guide
- Category
- Software
- Type
- User guide
HPE FlexFabric 5940 & 5930 Switch Series
Layer 3—IP Services Command Reference
P
art number: 5200-4875d
Software
version: Release 2609 and later
Document version: 6W103-20200310
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Contents
ARP commands ····························································································· 1
arp check enable ········································································································································ 1
arp check log enable ·································································································································· 1
arp max-learning-num ································································································································ 2
arp max-learning-number ··························································································································· 3
arp mode uni ·············································································································································· 4
arp multiport ··············································································································································· 5
arp smooth ················································································································································· 5
arp static ····················································································································································· 6
arp timer aging ··········································································································································· 8
display arp ·················································································································································· 8
display arp entry-limit ······························································································································· 11
display arp ip-address ······························································································································ 11
display arp openflow count ······················································································································· 12
display arp timer aging ····························································································································· 13
display arp vpn-instance ·························································································································· 13
reset arp ··················································································································································· 14
Gratuitous ARP commands ········································································· 15
arp ip-conflict log prompt ·························································································································· 15
arp send-gratuitous-arp ···························································································································· 15
gratuitous-arp mac-change retransmit ····································································································· 16
gratuitous-arp-learning enable ················································································································· 17
gratuitous-arp-sending enable ················································································································· 18
Proxy ARP commands ················································································· 19
display local-proxy-arp ····························································································································· 19
display proxy-arp ······································································································································ 19
local-proxy-arp enable ······························································································································ 20
proxy-arp enable ······································································································································ 21
ARP snooping commands ··········································································· 23
arp snooping enable································································································································· 23
display arp snooping ································································································································ 23
reset arp snooping ··································································································································· 24
ARP fast-reply commands ··········································································· 26
arp fast-reply enable ································································································································ 26
ARP direct route advertisement commands ················································· 27
arp route-direct advertise ························································································································· 27
IP addressing commands ············································································ 28
display ip interface ··································································································································· 28
display ip interface brief ··························································································································· 30
ip address ················································································································································· 31
ip address unnumbered ··························································································································· 33
DHCP commands ························································································ 34
Common DHCP commands ····························································································································· 34
dhcp client-detect ····································································································································· 34
dhcp dscp ················································································································································· 34
dhcp enable ·············································································································································· 35
dhcp flood-protection aging-time ·············································································································· 35
dhcp flood-protection enable ···················································································································· 36
dhcp flood-protection threshold ················································································································ 37
dhcp log enable ········································································································································ 38
ii
dhcp select ··············································································································································· 38
DHCP server commands ································································································································· 39
address range ·········································································································································· 39
bims-server ·············································································································································· 40
bootfile-name ··········································································································································· 41
class ip-pool ············································································································································· 42
class option-group ···································································································································· 42
class range ··············································································································································· 43
default ip-pool ··········································································································································· 44
dhcp apply-policy ····································································································································· 45
dhcp class ················································································································································ 46
dhcp option-group ···································································································································· 46
dhcp policy ··············································································································································· 47
dhcp server always-broadcast ················································································································· 48
dhcp server apply ip-pool ························································································································· 48
dhcp server bootp ignore ························································································································· 49
dhcp server bootp reply-rfc-1048 ············································································································· 50
dhcp server check mac-address ·············································································································· 50
dhcp server database filename ················································································································ 51
dhcp server database update interval ······································································································ 52
dhcp server database update now ··········································································································· 53
dhcp server database update stop ··········································································································· 53
dhcp server forbidden-ip ·························································································································· 54
dhcp server ip-pool ··································································································································· 55
dhcp server ping packets ························································································································· 56
dhcp server ping timeout ·························································································································· 56
dhcp server relay information enable ······································································································· 57
display dhcp server conflict ······················································································································ 58
display dhcp server database ·················································································································· 59
display dhcp server expired ····················································································································· 59
display dhcp server free-ip ······················································································································· 60
display dhcp server ip-in-use ··················································································································· 61
display dhcp server pool ·························································································································· 63
display dhcp server statistics ··················································································································· 65
dns-list ······················································································································································ 67
domain-name ··········································································································································· 67
expired ····················································································································································· 68
forbidden-ip ·············································································································································· 69
gateway-list ·············································································································································· 70
if-match ···················································································································································· 70
ip-in-use threshold ···································································································································· 73
nbns-list ···················································································································································· 73
netbios-type ·············································································································································· 74
network ····················································································································································· 75
next-server ··············································································································································· 76
option ······················································································································································· 77
reset dhcp server conflict ························································································································· 78
reset dhcp server expired ························································································································· 79
reset dhcp server ip-in-use ······················································································································· 79
reset dhcp server statistics ······················································································································· 80
static-bind ················································································································································· 80
tftp-server domain-name ·························································································································· 81
tftp-server ip-address ······························································································································· 82
valid class ················································································································································· 83
verify class ··············································································································································· 83
voice-config ·············································································································································· 84
vpn-instance ············································································································································· 85
DHCP relay agent commands ························································································································· 86
dhcp relay check mac-address ················································································································ 86
dhcp relay check mac-address aging-time······························································································· 86
dhcp relay client-information record ········································································································· 87
dhcp relay client-information refresh ········································································································ 88
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dhcp relay client-information refresh enable ···························································································· 88
dhcp relay dhcp-server timeout ················································································································ 89
dhcp relay gateway ·································································································································· 90
dhcp relay information circuit-id ··············································································································· 91
dhcp relay information enable ·················································································································· 92
dhcp relay information remote-id ·············································································································· 93
dhcp relay information strategy ················································································································ 94
dhcp relay mac-forward enable ················································································································ 95
dhcp relay master-server switch-delay ····································································································· 96
dhcp relay release ip ································································································································ 96
dhcp relay request-from-tunnel discard···································································································· 97
dhcp relay server-address ························································································································ 97
dhcp relay server-address algorithm ········································································································ 99
dhcp relay source-address ······················································································································· 99
dhcp smart-relay enable ························································································································· 100
dhcp-server timeout ······························································································································· 101
display dhcp relay check mac-address ·································································································· 102
display dhcp relay client-information ······································································································ 102
display dhcp relay information ················································································································ 104
display dhcp relay server-address ········································································································· 105
display dhcp relay statistics ···················································································································· 106
gateway-list ············································································································································ 107
master-server switch-delay ···················································································································· 108
remote-server ········································································································································· 108
remote-server algorithm ························································································································· 109
reset dhcp relay client-information ········································································································· 110
reset dhcp relay statistics ······················································································································· 110
DHCP client commands ································································································································· 111
dhcp client dad enable ··························································································································· 111
dhcp client dscp ····································································································································· 111
dhcp client identifier ······························································································································· 112
display dhcp client ·································································································································· 113
ip address dhcp-alloc ····························································································································· 115
DHCP snooping commands ··························································································································· 116
dhcp snooping binding database filename ····························································································· 116
dhcp snooping binding database update interval ··················································································· 117
dhcp snooping binding database update now ························································································ 118
dhcp snooping binding record ················································································································ 119
dhcp snooping check mac-address········································································································ 119
dhcp snooping check request-message································································································· 120
dhcp snooping deny ······························································································································· 121
dhcp snooping disable ··························································································································· 121
dhcp snooping enable ···························································································································· 122
dhcp snooping enable vlan ···················································································································· 123
dhcp snooping information circuit-id······································································································· 123
dhcp snooping information enable ········································································································· 125
dhcp snooping information remote-id ····································································································· 126
dhcp snooping information strategy ······································································································· 127
dhcp snooping log enable ······················································································································ 128
dhcp snooping max-learning-num ·········································································································· 128
dhcp snooping rate-limit ························································································································· 129
dhcp snooping trust ································································································································ 130
dhcp snooping trust interface ················································································································· 130
dhcp snooping trust tunnel ····················································································································· 131
display dhcp snooping binding ··············································································································· 132
display dhcp snooping binding database ······························································································· 133
display dhcp snooping information ········································································································· 134
display dhcp snooping packet statistics ································································································· 135
display dhcp snooping trust ···················································································································· 136
reset dhcp snooping binding ·················································································································· 136
reset dhcp snooping packet statistics ···································································································· 137
BOOTP client commands······························································································································· 137
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display bootp client ································································································································· 137
ip address bootp-alloc ···························································································································· 138
DNS commands ························································································ 140
display dns domain ································································································································ 140
display dns host ····································································································································· 141
display dns server ·································································································································· 142
display ipv6 dns server ··························································································································· 143
dns domain ············································································································································· 144
dns dscp ················································································································································· 144
dns proxy enable ···································································································································· 145
dns server ·············································································································································· 145
dns source-interface ······························································································································· 146
dns spoofing ··········································································································································· 147
dns trust-interface ·································································································································· 148
ip host ····················································································································································· 149
ipv6 dns dscp ········································································································································· 149
ipv6 dns server ······································································································································· 150
ipv6 dns spoofing ··································································································································· 151
ipv6 host ················································································································································· 152
reset dns host ········································································································································· 153
DDNS commands ······················································································ 154
ddns apply policy ···································································································································· 154
ddns dscp ··············································································································································· 154
ddns policy ············································································································································· 155
display ddns policy ································································································································· 156
interval ···················································································································································· 157
method ··················································································································································· 158
password ················································································································································ 159
ssl-client-policy ······································································································································· 160
url ··························································································································································· 160
username ··············································································································································· 162
Basic IP forwarding commands ································································· 164
display fib ··············································································································································· 164
forwarding split-horizon ·························································································································· 165
ip forwarding-table save ························································································································· 166
Load sharing commands············································································ 167
display ip load-sharing mode ················································································································· 167
display ip load-sharing path ··················································································································· 168
ip load-sharing local-first enable ············································································································ 169
ip load-sharing mode ······························································································································ 170
ip load-sharing symmetric enable ·········································································································· 171
Fast forwarding commands ········································································ 172
display ip fast-forwarding aging-time ······································································································ 172
display ip fast-forwarding cache ············································································································· 172
display ip fast-forwarding fragcache ······································································································· 173
ip fast-forwarding aging-time ·················································································································· 174
ip fast-forwarding load-sharing ··············································································································· 175
reset ip fast-forwarding cache ················································································································ 175
IPv4 adjacency table commands ······························································· 177
display adjacent-table ···························································································································· 177
IPv6 adjacency table commands ······························································· 179
display ipv6 adjacent-table ····················································································································· 179
IRDP commands ······················································································· 181
ip irdp ····················································································································································· 181
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ip irdp address ········································································································································ 181
ip irdp interval ········································································································································· 182
ip irdp lifetime ········································································································································· 183
ip irdp multicast ······································································································································ 183
ip irdp preference ··································································································································· 184
IP performance optimization commands ···················································· 185
display icmp statistics ····························································································································· 185
display ip statistics ································································································································· 185
display rawip ·········································································································································· 187
display rawip verbose ····························································································································· 187
display tcp ·············································································································································· 190
display tcp statistics ······························································································································· 191
display tcp verbose ································································································································ 193
display udp ············································································································································· 196
display udp statistics ······························································································································ 197
display udp verbose ······························································································································· 197
ip forward-broadcast ······························································································································ 200
ip icmp error-interval ······························································································································ 201
ip icmp fragment discarding ··················································································································· 202
ip icmp source ········································································································································ 202
ip mtu ····················································································································································· 203
ip reassemble local enable ····················································································································· 203
ip redirects enable ·································································································································· 204
ip ttl-expires enable ································································································································ 205
ip unreachables enable ·························································································································· 205
reset ip statistics ····································································································································· 206
reset tcp statistics ··································································································································· 207
reset udp statistics ································································································································· 207
tcp mss ··················································································································································· 208
tcp path-mtu-discovery ··························································································································· 208
tcp syn-cookie enable ···························································································································· 209
tcp timer fin-timeout ································································································································ 210
tcp timer syn-timeout ······························································································································ 210
tcp window ············································································································································· 211
UDP helper commands ·············································································· 212
display udp-helper interface ··················································································································· 212
reset udp-helper statistics ······················································································································ 212
udp-helper broadcast-map ····················································································································· 213
udp-helper enable ·································································································································· 214
udp-helper port ······································································································································· 214
udp-helper server ··································································································································· 215
IPv6 basics commands ·············································································· 217
display ipv6 fib ········································································································································ 217
display ipv6 icmp statistics ····················································································································· 218
display ipv6 interface ······························································································································ 219
display ipv6 interface prefix ···················································································································· 223
display ipv6 nd snooping ························································································································ 224
display ipv6 nd snooping count ·············································································································· 225
display ipv6 neighbors ···························································································································· 226
display ipv6 neighbors count ·················································································································· 228
display ipv6 neighbors entry-limit ··········································································································· 228
display ipv6 neighbors vpn-instance ······································································································ 229
display ipv6 pathmtu ······························································································································ 230
display ipv6 prefix ··································································································································· 231
display ipv6 rawip ··································································································································· 232
display ipv6 rawip verbose ····················································································································· 233
display ipv6 statistics ······························································································································ 235
display ipv6 tcp ······································································································································· 237
display ipv6 tcp verbose ························································································································· 238
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display ipv6 udp ····································································································································· 241
display ipv6 udp verbose ························································································································ 242
ipv6 address ··········································································································································· 244
ipv6 address anycast ····························································································································· 245
ipv6 address auto ··································································································································· 246
ipv6 address auto link-local ···················································································································· 247
ipv6 address eui-64 ································································································································ 248
ipv6 address link-local ···························································································································· 248
ipv6 address prefix-number ···················································································································· 249
ipv6 extension-header drop enable ········································································································ 250
ipv6 hop-limit ·········································································································································· 251
ipv6 hoplimit-expires enable ··················································································································· 251
ipv6 icmpv6 error-interval ······················································································································· 252
ipv6 icmpv6 multicast-echo-reply enable ······························································································· 253
ipv6 icmpv6 source ································································································································ 253
ipv6 mtu ·················································································································································· 254
ipv6 nd autoconfig managed-address-flag ····························································································· 255
ipv6 nd autoconfig other-flag ·················································································································· 255
ipv6 nd dad attempts ······························································································································ 256
ipv6 nd ns retrans-timer ························································································································· 257
ipv6 nd nud reachable-time ···················································································································· 258
ipv6 nd ra halt ········································································································································· 258
ipv6 nd ra hop-limit unspecified ·············································································································· 259
ipv6 nd ra interval ··································································································································· 259
ipv6 nd ra no-advlinkmtu ························································································································ 260
ipv6 nd ra prefix ······································································································································ 261
ipv6 nd ra prefix default ·························································································································· 262
ipv6 nd ra router-lifetime ························································································································ 263
ipv6 nd router-preference ······················································································································· 263
ipv6 nd snooping dad retrans-timer ········································································································ 264
ipv6 nd snooping enable global·············································································································· 265
ipv6 nd snooping enable link-local ········································································································· 265
ipv6 nd snooping glean source ·············································································································· 266
ipv6 nd snooping lifetime ························································································································ 266
ipv6 nd snooping max-learning-num ······································································································ 267
ipv6 nd snooping uplink·························································································································· 267
ipv6 neighbor ·········································································································································· 268
ipv6 neighbor link-local minimize ··········································································································· 269
ipv6 neighbor stale-aging ······················································································································· 270
ipv6 neighbors max-learning-num ·········································································································· 270
ipv6 pathmtu ··········································································································································· 271
ipv6 pathmtu age ···································································································································· 272
ipv6 prefer temporary-address ··············································································································· 273
ipv6 prefix ··············································································································································· 273
ipv6 reassemble local enable ················································································································· 274
ipv6 redirects enable ······························································································································ 275
ipv6 temporary-address ························································································································· 275
ipv6 unreachables enable ······················································································································ 276
local-proxy-nd enable ····························································································································· 277
proxy-nd enable ····································································································································· 278
reset ipv6 nd snooping ··························································································································· 278
reset ipv6 neighbors ······························································································································· 279
reset ipv6 pathmtu ·································································································································· 279
reset ipv6 statistics ································································································································· 280
DHCPv6 commands ·················································································· 281
Common DHCPv6 commands ······················································································································· 281
display ipv6 dhcp duid ···························································································································· 281
ipv6 dhcp advertise pd-route ·················································································································· 281
ipv6 dhcp dscp ······································································································································· 282
ipv6 dhcp log enable ······························································································································ 282
ipv6 dhcp select ····································································································································· 283
vii
DHCPv6 server commands···························································································································· 284
address range ········································································································································ 284
class pool ··············································································································································· 285
default pool ············································································································································· 286
display ipv6 dhcp option-group ·············································································································· 286
display ipv6 dhcp pool ···························································································································· 288
display ipv6 dhcp prefix-pool ·················································································································· 291
display ipv6 dhcp server ························································································································· 292
display ipv6 dhcp server conflict ············································································································ 293
display ipv6 dhcp server database ········································································································· 294
display ipv6 dhcp server expired ············································································································ 295
display ipv6 dhcp server ip-in-use ·········································································································· 296
display ipv6 dhcp server pd-in-use ········································································································· 298
display ipv6 dhcp server statistics ·········································································································· 300
dns-server ·············································································································································· 301
domain-name ········································································································································· 302
if-match ·················································································································································· 303
ipv6 dhcp apply-policy ···························································································································· 305
ipv6 dhcp class ······································································································································· 305
ipv6 dhcp option-group ··························································································································· 306
ipv6 dhcp policy ······································································································································ 307
ipv6 dhcp pool ········································································································································ 307
ipv6 dhcp prefix-pool ······························································································································ 308
ipv6 dhcp server ····································································································································· 309
ipv6 dhcp server apply pool ··················································································································· 310
ipv6 dhcp server database filename ······································································································ 311
ipv6 dhcp server database update interval ···························································································· 313
ipv6 dhcp server database update now ································································································· 313
ipv6 dhcp server database update stop ································································································· 314
ipv6 dhcp server forbidden-address ······································································································· 315
ipv6 dhcp server forbidden-prefix ··········································································································· 316
network ··················································································································································· 317
option ····················································································································································· 318
option-group ··········································································································································· 319
prefix-pool ·············································································································································· 320
reset ipv6 dhcp server conflict················································································································ 321
reset ipv6 dhcp server expired ··············································································································· 321
reset ipv6 dhcp server ip-in-use ············································································································· 322
reset ipv6 dhcp server pd-in-use ············································································································ 323
reset ipv6 dhcp server statistics ············································································································· 323
sip-server ··············································································································································· 324
static-bind ··············································································································································· 325
temporary address range ······················································································································· 326
vpn-instance ··········································································································································· 327
DHCPv6 relay agent commands ···················································································································· 327
display ipv6 dhcp relay client-information address················································································· 327
display ipv6 dhcp relay client-information pd ························································································· 329
display ipv6 dhcp relay server-address ·································································································· 331
display ipv6 dhcp relay statistics ············································································································ 332
gateway-list ············································································································································ 334
ipv6 dhcp client-detect ··························································································································· 335
ipv6 dhcp relay client-information record ······························································································· 335
ipv6 dhcp relay client-link-address enable ····························································································· 336
ipv6 dhcp relay gateway ························································································································· 337
ipv6 dhcp relay interface-id ···················································································································· 337
ipv6 dhcp relay release-agent ················································································································ 338
ipv6 dhcp relay server-address ·············································································································· 339
ipv6 dhcp relay source-address ············································································································· 340
remote-server ········································································································································· 341
reset ipv6 dhcp relay client-information address ···················································································· 341
reset ipv6 dhcp relay client-information pd ····························································································· 342
reset ipv6 dhcp relay statistics ··············································································································· 343
viii
DHCPv6 client commands ····························································································································· 343
display ipv6 dhcp client ·························································································································· 343
display ipv6 dhcp client statistics ··········································································································· 345
ipv6 address dhcp-alloc ························································································································· 347
ipv6 dhcp client dscp ······························································································································ 347
ipv6 dhcp client duid ······························································································································· 348
ipv6 dhcp client pd ································································································································· 349
ipv6 dhcp client stateful ·························································································································· 350
ipv6 dhcp client stateless enable ··········································································································· 351
reset ipv6 dhcp client statistics ··············································································································· 351
DHCPv6 snooping commands ······················································································································· 352
display ipv6 dhcp snooping binding ······································································································· 352
display ipv6 dhcp snooping binding database························································································ 353
display ipv6 dhcp snooping packet statistics·························································································· 354
display ipv6 dhcp snooping pd binding ·································································································· 354
display ipv6 dhcp snooping trust ············································································································ 355
ipv6 dhcp snooping binding database filename ····················································································· 356
ipv6 dhcp snooping binding database update interval ··········································································· 357
ipv6 dhcp snooping binding database update now ················································································ 358
ipv6 dhcp snooping binding record ········································································································ 359
ipv6 dhcp snooping check request-message ························································································· 359
ipv6 dhcp snooping deny ······················································································································· 360
ipv6 dhcp snooping enable ···················································································································· 361
ipv6 dhcp snooping log enable··············································································································· 361
ipv6 dhcp snooping max-learning-num ·································································································· 362
ipv6 dhcp snooping option interface-id enable ······················································································· 362
ipv6 dhcp snooping option interface-id string ························································································· 363
ipv6 dhcp snooping option remote-id enable ························································································· 364
ipv6 dhcp snooping option remote-id string ··························································································· 365
ipv6 dhcp snooping pd binding record ··································································································· 365
ipv6 dhcp snooping rate-limit ················································································································· 366
ipv6 dhcp snooping trust ························································································································ 367
reset ipv6 dhcp snooping binding··········································································································· 367
reset ipv6 dhcp snooping packet statistics ····························································································· 368
reset ipv6 dhcp snooping pd binding ······································································································ 368
IPv6 fast forwarding commands ································································· 370
display ipv6 fast-forwarding aging-time ·································································································· 370
display ipv6 fast-forwarding cache ········································································································· 370
ipv6 fast-forwarding aging-time ·············································································································· 371
ipv6 fast-forwarding load-sharing ··········································································································· 372
reset ipv6 fast-forwarding cache ············································································································ 373
Tunneling commands ················································································ 374
bandwidth ··············································································································································· 374
default ···················································································································································· 374
description ·············································································································································· 375
destination ·············································································································································· 375
display interface tunnel ·························································································································· 376
interface tunnel ······································································································································· 380
mtu ························································································································································· 381
reset counters interface tunnel ··············································································································· 382
service ···················································································································································· 382
shutdown ················································································································································ 383
source ···················································································································································· 383
tunnel dfbit enable ·································································································································· 384
tunnel discard ipv4-compatible-packet ··································································································· 385
tunnel log updown with-tag ···················································································································· 385
tunnel tos ················································································································································ 386
tunnel ttl ·················································································································································· 387
ix
GRE commands ························································································ 388
keepalive ················································································································································ 388
HTTP redirect commands ·········································································· 389
http-redirect https-port ···························································································································· 389
http-redirect ssl-server-policy ················································································································· 389
Document conventions and icons ······························································ 391
Conventions ··················································································································································· 391
Network topology icons ·································································································································· 392
Support and other resources ····································································· 393
Accessing Hewlett Packard Enterprise Support····························································································· 393
Accessing updates ········································································································································· 393
Websites ················································································································································ 394
Customer self repair ······························································································································· 394
Remote support ······································································································································ 394
Documentation feedback ······················································································································· 394
Index ·········································································································· 396
1
ARP commands
arp check enable
Use arp check enable to enable dynamic ARP entry check.
Use undo arp check enable to disable dynamic ARP entry check.
Syntax
arp check enable
undo arp check enable
Default
Dynamic ARP entry check is enabled.
Views
System view
Predefined user roles
network-admin
Usage guidelines
Dynamic ARP entry check disables a device from supporting dynamic ARP entries with multicast
MAC addresses. The device cannot learn dynamic ARP entries containing multicast MAC addresses.
You cannot manually add static ARP entries that contain multicast MAC addresses.
When dynamic ARP entry check is disabled, ARP entries containing multicast MAC addresses are
supported. The device can learn dynamic ARP entries containing multicast MAC addresses obtained
from the ARP packets sourced from a unicast MAC address. You can also manually add static ARP
entries containing multicast MAC addresses.
Examples
# Enable dynamic ARP entry check.
<Sysname> system-view
[Sysname] arp check enable
arp check log enable
Use arp check log enable to enable the ARP logging feature.
Use undo arp check log enable to disable the ARP logging feature.
Syntax
arp check log enable
undo arp check log enable
Default
ARP logging is disabled.
Views
System view
Predefined user roles
network-admin
2
Usage guidelines
This feature enables a device to log ARP events when ARP cannot resolve IP addresses correctly.
The device can log the following ARP events:
•
On a proxy ARP-disabled interface, the target IP address of a received ARP packet is not one of
the following IP addresses:
The IP address of the receiving interface.
The virtual IP address of the VRRP group.
•
The sender IP address of a received ARP reply conflicts with one of the following IP addresses:
The IP address of the receiving interface.
The virtual IP address of the VRRP group.
The device sends ARP log messages to the information center. You can use the info-center source
command to specify the log output rules for the information center. For more information about
information center, see Network Management and Monitoring Configuration Guide.
The device can generate a large number of ARP logs. To conserve system resources, enable ARP
logging only when you are auditing or troubleshooting ARP events.
Examples
# Enable ARP logging.
<Sysname> system-view
[Sysname] arp check log enable
arp max-learning-num
Use arp max-learning-num to set the maximum number of dynamic ARP entries that an interface
can learn.
Use undo arp max-learning-num to restore the default.
Syntax
arp max-learning-num max-number [ alarm alarm-threshold ]
undo arp max-learning-num
Default
The maximum number of dynamic ARP entries that an interface can learn depends on the ARP table
capacity set by using the hardware-resource switch-mode command. For information about the
hardware-resource switch-mode command, see Fundamentals Command Reference.
Views
Layer 2 Ethernet interface view
Layer 2 aggregate interface view
Layer 3 Ethernet interface view
Layer 3 Ethernet subinterface view
Layer 3 aggregate interface view
Layer 3 aggregate subinterface view
VXLAN VSI interface view
VLAN interface view
Predefined user roles
network-admin
3
Parameters
max-number: Specifies the maximum number of dynamic ARP entries for an interface. The value
range for this argument is 0 to N. The value for N depends on the ARP table capacity.
alarm alarm-threshold: Specifies an alarm threshold for dynamic ARP learning, in percentage. The
value range for the alarm-threshold argument is 1 to 100. The device generates a log message when
the number of dynamic ARP entries learned on an interface reaches the value calculated by using
the formula: (max-number × alarm-threshold)/100. If you do not specify the alarm threshold, the
device does not generate log messages.
Usage guidelines
An interface can dynamically learn ARP entries. To prevent an interface from holding too many ARP
entries, you can set the maximum number of dynamic ARP entries that the interface can learn. When
the maximum number is reached, the interface stops learning ARP entries.
When the number argument is set to 0, the interface is disabled from learning dynamic ARP entries.
Examples
# Specify VLAN-interface 40 to learn a maximum of 10 dynamic ARP entries.
<Sysname> system-view
[Sysname] interface vlan-interface 40
[Sysname-Vlan-interface40] arp max-learning-num 10
# Specify Ten-GigabitEthernet 1/0/1 to learn a maximum of 10 dynamic ARP entries.
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 1/0/1
[Sysname-Ten-GigabitEthernet1/0/1] arp max-learning-num 10
# Specify Layer 2 aggregate interface Bridge-Aggregation 1 to learn a maximum of 10 dynamic ARP
entries.
<Sysname> system-view
[Sysname] interface bridge-aggregation 1
[Sysname-Bridge-Aggregation1] arp max-learning-num 10
# Specify Layer 3 aggregate interface Route-Aggregation 1 to learn a maximum of 10 dynamic ARP
entries.
<Sysname> system-view
[Sysname] interface route-aggregation 1
[Sysname-Route-Aggregation1] arp max-learning-num 10
arp max-learning-number
Use arp max-learning-number to set the maximum number of dynamic ARP entries that a device
can learn.
Use undo arp max-learning-number to restore the default.
Syntax
arp max-learning-number max-number slot slot-number
undo arp max-learning-number slot slot-number
Default
The maximum number of dynamic ARP entries that a device can learn depends on the ARP table
capacity set by using the hardware-resource switch-mode command. For information about the
hardware-resource switch-mode command, see Fundamentals Command Reference.
4
Views
System view
Predefined user roles
network-admin
Parameters
max-number: Specifies the maximum number of dynamic ARP entries for a device. The value range
for this argument is 0 to N. The value for N depends on the ARP table capacity.
slot slot-number: Specifies an IRF member device by its member ID.
Usage guidelines
A device can dynamically learn ARP entries. To prevent a device from holding too many ARP entries,
you can set the maximum number of dynamic ARP entries that the device can learn. When the
maximum number is reached, the device stops learning ARP entries.
When the number argument is set to 0, the device is disabled from learning dynamic ARP entries.
Examples
# Configure the device to learn a maximum of 64 dynamic ARP entries.
<Sysname> system-view
[Sysname] arp max-learning-number 64 slot 1
arp mode uni
Use arp mode uni to configure a port as a customer-side port.
Use undo arp mode to restore the default.
Syntax
arp mode uni
undo arp mode
Default
A port operates as a network-side port.
Views
VLAN interface view
VXLAN VSI interface view
Predefined user roles
network-admin
Usage guidelines
By default, the device associates an ARP entry with routing information when the device learns an
ARP entry. The ARP entry provides the next hop information for routing. To save hardware resources,
you can use this command to specify a port that connects to a user terminal as a customer-side port.
The device will not associate the routing information with the learned ARP entries.
Examples
# Configure VLAN-interface 2 as a customer-side port.
<Sysname> system-view
[Sysname] interface vlan-interface 2
[Sysname-Vlan-interface2] arp mode uni
5
arp multiport
Use arp multiport to configure a multiport ARP entry.
Use undo arp to delete an ARP entry.
Syntax
arp multiport ip-address mac-address vlan-id [ vpn-instance vpn-instance-name ]
undo arp ip-address [ vpn-instance-name ]
Default
No multiport ARP entries exist.
Views
System view
Predefined user roles
network-admin
Parameters
ip-address: Specifies an IP address for the multiport ARP entry.
mac-address: Specifies a MAC address for the multiport ARP entry, in the format of H-H-H.
vlan-id: Specifies a VLAN for the multiport ARP entry, in the range of 1 to 4094. The specified VLAN
must already exist.
vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance to which the multiport ARP
entry belongs. The vpn-instance-name argument represents the VPN instance name, a
case-sensitive string of 1 to 31 characters. The specified VPN instance must already exist. To specify
a multiport ARP entry on the public network, do not specify this option.
Usage guidelines
If the VLAN or the corresponding VLAN interface is deleted, the multiport ARP entry is also deleted.
To make the multiport ARP entry effective for packet forwarding, you must configure a multicast or
multiport unicast MAC address entry to specify multiple output interfaces. The MAC address entry
must have the same MAC address and VLAN ID as the multiport ARP entry. In addition, the IP
address in the multiport ARP entry must reside on the same subnet as the VLAN interface of the
specified VLAN.
Examples
# Configure a multiport ARP entry that contains IP address 202.38.10.2 and MAC address
00e0-fc01-0000 in VLAN 10.
<Sysname> system-view
[Sysname] arp multiport 202.38.10.2 00e0-fc01-0000 10
Related commands
display arp multiport
reset arp multiport
arp smooth
Use arp smooth to synchronize ARP entries from the master device to all subordinate devices.
Syntax
arp smooth
6
Views
User view
Predefined user roles
network-admin
Examples
# Synchronize ARP entries from the master device to all subordinate devices.
<Sysname> arp smooth
arp static
Use arp static to configure a static ARP entry.
Use undo arp to delete an ARP entry.
Syntax
arp static ip-address mac-address [ vlan-id interface-type interface-number | vsi-interface
vsi-interface-id tunnel number vsi vsi-name | vsi-interface vsi-interface-id interface-type
interface-number service-instance instance-id vsi vsi-name ] [ vpn-instance vpn-instance-name ]
undo arp ip-address [ vpn-instance-name ]
Default
No static ARP entries exist.
Views
System view
Predefined user roles
network-admin
Parameters
ip-address: Specifies an IP address for the static ARP entry.
mac-address: Specifies a MAC address for the static ARP entry, in the format of H-H-H.
vlan-id: Specifies the ID of a VLAN to which the static ARP entry belongs. The value range is 1 to
4094.
interface-type interface-number: Specifies an interface by its type and number.
vsi-interface vsi-interface-id: Specifies a VSI interface by its number.
tunnel number: Specifies a tunnel interface by its number in the range of 0 to 1.
service-instance instance-id: Specifies an Ethernet service instance by its ID in the range of 1 to
4096. You must specify this option if you specify a Layer 2 Ethernet interface for the preceding
interface-type interface-number arguments. Do not specify this option if you specify an interface of
other types for the preceding interface-type interface-number argument.
vsi vsi-name: Specifies a VSI by its name, a case-sensitive string of 1 to 31 characters.
vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance to which the static ARP entry
belongs. The vpn-instance-name argument represents the VPN instance name, a case-sensitive
string of 1 to 31 characters. The VPN instance must already exist. To specify a static ARP entry on
the public network, do not specify this option.
Usage guidelines
A static ARP entry is manually configured and maintained. It does not age out and cannot be
overwritten by any dynamic ARP entry.
7
Static ARP entries can be short or long.
A resolved short static ARP entry becomes unresolved upon certain events, for example, when the
resolved output interface goes down, or the corresponding VLAN or VLAN interface is deleted.
Long static ARP entries are effective or ineffective. Ineffective long static ARP entries cannot be used
for packet forwarding. A long static ARP entry is ineffective when any of the following conditions
exists:
•
The corresponding VLAN interface or output interface is down.
•
The IP address in the entry conflicts with a local IP address.
•
No local interface has an IP address in the same subnet as the IP address in the ARP entry.
If you specify the vlan-id interface-type interface-number argument, follow these restrictions and
guidelines:
•
The interface can be an Ethernet interface or an aggregate interface.
•
The VLAN and VLAN interface must already exist. The specified Ethernet interface must belong
to the specified VLAN.
•
The IP address of the VLAN interface and the IP address specified by the ip-address argument
must be on the same network.
•
A long static ARP entry in a VLAN is deleted if the VLAN or VLAN interface is deleted.
On a VXLAN IP gateway that forwards traffic among VXLANs through VXLAN tunnels, a VSI
interface can act as the gateway for multiple VXLANs. The VSI interface (input interface) might be
connected to multiple VXLAN tunnel interfaces (output interfaces). In this case, you must specify the
vsi-interface vsi-interface-id tunnel number vsi vsi-name parameters to identify a VSI
interface-VSI-VXLAN tunnel interface binding. For more information about VSI interfaces, VSI, and
VXLAN tunnel interfaces, see VXLAN Configuration Guide.
On a VXLAN IP gateway that forwards traffic from multiple local sites to remote sites, a VSI interface
can act as the gateway for multiple local sites. The VSI interface (input interface) might be
associated with multiple Ethernet services (output interfaces) on Layer 2 Ethernet interfaces through
which the VSI interface connects to the local sites. In this case, you must specify the vsi-interface
vsi-interface-id interface-type interface-number service-instance instance-id vsi vsi-name
parameters to identify a VSI interface-Layer 2 Ethernet interface-Ethernet service instance-VSI
binding. For more information about VSI interfaces, VSI, and Ethernet service instances, see VXLAN
Configuration Guide.
Examples
# Configure a long static ARP entry that contains IP address 202.38.10.2, MAC address
00e0-fc01-0000, and output interface Ten-GigabitEthernet 1/0/1 in VLAN 10.
<Sysname> system-view
[Sysname] arp static 202.38.10.2 00e0-fc01-0000 10 ten-gigabitethernet 1/0/1
# Configure a long static ARP entry that contains IP address 1.1.1.1, MAC address 00e0-fc01-0000,
input interface VSI-interface 1, output interface Tunnel 1, and VSI a.
<Sysname> system-view
[Sysname] arp static 1.1.1.1 00e0-fc01-0000 vsi-interface 1 tunnel 1 vsi a
# Configure a long static ARP entry that contains IP address 1.1.1.1, MAC address 00e0-fc01-0000,
input interface VSI-interface 1, output interface Ethernet instance 1 on Ten-GigabitEthernet 1/0/1,
and VSI a.
<Sysname> system-view
[Sysname] arp static 1.1.1.1 00e0-fc01-0000 vsi-interface 1 ten-gigabitethernet 1/0/1
service-in
stance 1 vsi a
Related commands
display arp
8
reset arp
arp timer aging
Use arp timer aging to set the aging timer for dynamic ARP entries.
Use undo arp timer aging to restore the default.
Syntax
arp timer aging { aging-minutes | second aging-seconds }
undo arp timer aging
Default
The aging timer for dynamic ARP entries is 20 minutes.
Views
System view
Predefined user roles
network-admin
Parameters
aging-minutes: Specifies the aging timer in minutes. The value range for this argument is 1 to 1440.
second aging-seconds: Specifies the aging timer in seconds. The value range for the aging-seconds
argument is 5 to 86400.
Usage guidelines
Each dynamic ARP entry in the ARP table has a limited lifetime, called an aging timer. The aging
timer of a dynamic ARP entry is reset each time the dynamic ARP entry is updated. Dynamic ARP
entries that are not updated before their aging timers expire are deleted from the ARP table.
Set the aging timer for dynamic ARP entries as needed. For example, when you configure proxy ARP,
set a short aging time so that invalid dynamic ARP entries can be deleted in a timely manner.
Examples
# Set the aging timer for dynamic ARP entries to 10 minutes.
<Sysname> system-view
[Sysname] arp timer aging 10
# Set the aging timer for dynamic ARP entries to 200 seconds.
<Sysname> system-view
[Sysname] arp timer aging second 200
Related commands
display arp timer aging
display arp
Use display arp to display ARP entries.
Syntax
display arp [ [ all | dynamic | multiport | static ] [ slot slot-number ] | vlan vlan-id | interface
interface-type interface-number ] [ count | verbose ]
Views
Any view
9
Predefined user roles
network-admin
network-operator
Parameters
all: Displays all ARP entries.
dynamic: Displays dynamic ARP entries.
multiport: Displays multiport ARP entries.
static: Displays static ARP entries.
slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member
device, this command displays ARP entries for the master device.
vlan vlan-id: Specifies a VLAN by its VLAN ID. The VLAN ID is in the range of 1 to 4094.
interface interface-type interface-number: Specifies an interface by its type and number. If you do
not specify an interface, this command displays ARP entries for all interfaces.
count: Displays the number of ARP entries.
verbose: Displays detailed information about ARP entries.
Usage guidelines
This command displays information about ARP entries, including the IP address, MAC address,
VLAN ID, output interface, entry type, and aging timer.
Examples
# Display all ARP entries.
<Sysname> display arp all
IP address MAC address VLAN/VSI Interface/Link ID Aging Type
1.1.1.1 02e0-f102-0023 1 XGE1/0/1 -- S
1.1.1.2 00e0-fc00-0001 12 XGE1/0/2 960 D
1.1.1.3 00e0-fe50-6503 12 Tunnel1 960 D
1.1.1.4 000d-88f7-9f7d 12 0x1 960 D
# Display detailed information about all ARP entries.
IP address : 1.1.1.1 MAC address : 02e0-f102-0023
Type : Static Aging : --
Interface : XGE1/0/1 VLAN : 1
VPN instance : --
Link ID : --
VXLAN ID : --
VSI name : --
VSI interface : --
Nickname : 0x0000
IP address : 1.1.1.2 MAC address : 0015-e944-adc5
Type : Static Aging : 960 sec
Interface : XGE1/0/2 VLAN : 12
VPN instance : --
Link ID : --
VXLAN ID : --
VSI name : --
VSI interface : --
Nickname : 0x0000
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Aruba Layer 3—IP Services User guide
- Category
- Software
- Type
- User guide
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