Dell PowerEdge M IO Aggregator User guide
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- User guide
Dell PowerEdge Command Line Reference
Guide for the M I/O Aggregator 9.7(0.0)
Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better use of your computer.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you
how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Copyright © 2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and
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and the Dell logo are trademarks of Dell Inc. in the United States and/or other
jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.
2015–02
Contents
1 About this Guide..................................................................................................16
Objectives............................................................................................................................................ 16
Audience.............................................................................................................................................. 17
Conventions.........................................................................................................................................17
Information Icons...........................................................................................................................17
2 Before You Start..................................................................................................18
Operational Modes..............................................................................................................................18
Default Settings................................................................................................................................... 18
Other Auto-Configured Settings........................................................................................................ 19
DCB Support..................................................................................................................................19
FCoE Connectivity.........................................................................................................................19
iSCSI Operation............................................................................................................................. 20
Link Aggregation........................................................................................................................... 20
Link Tracking................................................................................................................................. 20
VLANs.............................................................................................................................................20
Where to Go From Here..................................................................................................................... 22
3 CLI Basics............................................................................................................. 23
Accessing the Command Line............................................................................................................23
Multiple Configuration Users..............................................................................................................23
Navigating the CLI...............................................................................................................................24
Obtaining Help.................................................................................................................................... 25
Using the Keyword no Command......................................................................................................26
Filtering show Commands..................................................................................................................27
Command Modes............................................................................................................................... 28
4 File Management................................................................................................ 30
boot system gateway..........................................................................................................................30
boot system stack-unit.......................................................................................................................30
cd..........................................................................................................................................................31
copy..................................................................................................................................................... 32
copy running-config startup-config.................................................................................................. 33
delete...................................................................................................................................................34
dir.........................................................................................................................................................34
format flash..........................................................................................................................................35
HTTP Copy via CLI.............................................................................................................................. 36
logging coredump stack-unit.............................................................................................................37
pwd......................................................................................................................................................38
rename.................................................................................................................................................38
restore factory-defaults......................................................................................................................39
show boot system...............................................................................................................................40
show file...............................................................................................................................................41
show file-systems............................................................................................................................... 42
show os-version..................................................................................................................................43
show running-config..........................................................................................................................44
show version....................................................................................................................................... 46
upgrade boot.......................................................................................................................................47
upgrade system...................................................................................................................................48
5 Control and Monitoring.................................................................................... 50
asset-tag..............................................................................................................................................50
clear alarms..........................................................................................................................................51
clear command history....................................................................................................................... 51
configure..............................................................................................................................................51
debug cpu-traffic-stats.......................................................................................................................52
debug ifm trace-flags..........................................................................................................................53
disable..................................................................................................................................................53
enable.................................................................................................................................................. 54
end.......................................................................................................................................................54
exit........................................................................................................................................................55
ftp-server enable.................................................................................................................................55
ftp-server topdir.................................................................................................................................. 56
ftp-server username............................................................................................................................57
hostname.............................................................................................................................................58
ip telnet server enable.........................................................................................................................58
ip telnet source-interface................................................................................................................... 59
line....................................................................................................................................................... 59
ping......................................................................................................................................................60
reload...................................................................................................................................................62
service timestamps............................................................................................................................. 63
show alarms........................................................................................................................................ 64
show command-history.....................................................................................................................64
show configuration lock.....................................................................................................................66
show cpu-traffic-stats........................................................................................................................ 66
show debugging..................................................................................................................................67
show diag............................................................................................................................................ 68
show environment..............................................................................................................................69
show inventory....................................................................................................................................70
show memory......................................................................................................................................72
show processes cpu............................................................................................................................72
show processes ipc flow-control.......................................................................................................76
show processes memory....................................................................................................................78
show revision.......................................................................................................................................81
show server-interfaces........................................................................................................................81
show system........................................................................................................................................83
show tech-support............................................................................................................................. 84
show uplink brief.................................................................................................................................87
show util-threshold cpu..................................................................................................................... 89
show util-threshold memory............................................................................................................. 89
ssh-peer-stack-unit............................................................................................................................90
telnet................................................................................................................................................... 90
telnet-peer-stack-unit........................................................................................................................ 91
terminal length.................................................................................................................................... 91
terminal monitor................................................................................................................................. 92
terminal xml.........................................................................................................................................92
trace route...........................................................................................................................................93
undebug all..........................................................................................................................................94
write.....................................................................................................................................................94
6 u-Boot.................................................................................................................. 96
boot change........................................................................................................................................96
boot selection..................................................................................................................................... 96
boot show net config retries.............................................................................................................. 97
boot write net config retries............................................................................................................... 97
boot zero.............................................................................................................................................98
default gateway...................................................................................................................................98
enable..................................................................................................................................................98
help......................................................................................................................................................99
ignore enable password................................................................................................................... 100
ignore startup-config....................................................................................................................... 100
interface management ethernet ip address.................................................................................... 100
no default gateway............................................................................................................................101
no interface management ethernet ip address................................................................................101
reload.................................................................................................................................................102
show boot blc................................................................................................................................... 102
show boot selection......................................................................................................................... 103
show bootflash..................................................................................................................................103
show bootvar.................................................................................................................................... 104
show default gateway.......................................................................................................................105
show interface management ethernet.............................................................................................105
show interface management port config........................................................................................106
syntax help........................................................................................................................................ 106
7 Data Center Bridging (DCB)............................................................................107
Fibre Channel over Ethernet for FC Flex IO Modules......................................................................107
advertise dcbx-appln-tlv...................................................................................................................108
advertise dcbx-tlv..............................................................................................................................109
bandwidth-percentage..................................................................................................................... 110
clear dcbx counters...........................................................................................................................110
clear ets counters...............................................................................................................................111
clear pfc counters.............................................................................................................................. 111
dcb-enable.........................................................................................................................................112
dcb enable pfc-queues..................................................................................................................... 112
dcb enable auto-detect on-next-reload..........................................................................................113
dcb-map stack-unit all stack-ports all............................................................................................. 116
dcbx-port role....................................................................................................................................117
dcbx version.......................................................................................................................................118
debug dcbx........................................................................................................................................ 119
fc-map...............................................................................................................................................120
fcoe-map........................................................................................................................................... 121
fcoe priority-bits................................................................................................................................122
iscsi priority-bits................................................................................................................................ 122
keepalive............................................................................................................................................ 123
interface vlan (NPIV proxy gateway).................................................................................................124
pfc mode on...................................................................................................................................... 125
pfc no-drop queues.......................................................................................................................... 125
pfc priority......................................................................................................................................... 126
priority-group.................................................................................................................................... 127
priority-group bandwidth pfc...........................................................................................................128
priority-pgid...................................................................................................................................... 130
qos-policy-output ets....................................................................................................................... 131
scheduler........................................................................................................................................... 132
show dcb........................................................................................................................................... 133
show interface dcbx detail................................................................................................................133
show interface ets.............................................................................................................................136
show interface pfc............................................................................................................................ 140
show interface pfc statistics............................................................................................................. 143
show qos dcb-map...........................................................................................................................144
show stack-unit stack-ports ets details........................................................................................... 145
show stack-unit stack-ports pfc details...........................................................................................146
8 Dynamic Host Configuration Protocol........................................................ 148
clear ip dhcp client statistics.............................................................................................................148
debug ip dhcp client events............................................................................................................. 149
debug ip dhcp client packets........................................................................................................... 150
ip address dhcp................................................................................................................................. 150
release dhcp interface....................................................................................................................... 151
renew dhcp interface........................................................................................................................ 151
show ip dhcp client statistics............................................................................................................152
show ip dhcp lease............................................................................................................................153
9 FC Flex IO Modules...........................................................................................154
Fibre Channel over Ethernet for FC Flex IO Modules......................................................................154
NPIV Proxy Gateway for FC Flex IO Modules.................................................................................. 154
description (for FCoE maps)............................................................................................................. 155
fabric.................................................................................................................................................. 155
fabric-id vlan......................................................................................................................................156
fcf-priority..........................................................................................................................................158
fc-map...............................................................................................................................................158
fcoe-map...........................................................................................................................................159
fka-adv-period...................................................................................................................................161
interface vlan (NPIV proxy gateway).................................................................................................161
keepalive............................................................................................................................................162
show fc switch...................................................................................................................................163
show fcoe-map.................................................................................................................................164
show npiv devices............................................................................................................................. 167
show running-config fcoe-map.......................................................................................................170
10 FC FLEXIO FPORT........................................................................................... 171
active-zoneset .................................................................................................................................. 171
fabric.................................................................................................................................................. 172
fc alias................................................................................................................................................ 173
fc zone............................................................................................................................................... 173
fc zoneset.......................................................................................................................................... 174
fcoe-map........................................................................................................................................... 175
feature fc............................................................................................................................................176
show fc alias...................................................................................................................................... 176
show fc ns..........................................................................................................................................177
show fc switch...................................................................................................................................179
show fc zone.....................................................................................................................................180
show fc zoneset................................................................................................................................180
show fcoe-map................................................................................................................................. 181
11 FIP Snooping....................................................................................................183
clear fip-snooping database interface vlan......................................................................................183
clear fip-snooping statistics........................................................................................................184
feature fip-snooping................................................................................................................... 184
fip-snooping enable....................................................................................................................185
fip-snooping fc-map...................................................................................................................185
fip-snooping port-mode fcf....................................................................................................... 186
show fip-snooping statistics.............................................................................................................186
debug fip-snooping.......................................................................................................................... 190
show fip-snooping config................................................................................................................ 190
show fip-snooping enode.................................................................................................................191
show fip-snooping fcf.......................................................................................................................192
show fip-snooping sessions............................................................................................................. 193
show fip-snooping statistics.............................................................................................................194
show fip-snooping system............................................................................................................... 197
show fip-snooping vlan.................................................................................................................... 197
12 Internet Group Management Protocol (IGMP)......................................... 199
IGMP Commands..............................................................................................................................199
IGMP Snooping Commands............................................................................................................ 200
clear ip igmp groups.........................................................................................................................200
debug ip igmp................................................................................................................................... 201
ip igmp group-join-limit...................................................................................................................201
ip igmp querier-timeout...................................................................................................................202
ip igmp query-interval...................................................................................................................... 202
ip igmp query-max-resp-time......................................................................................................... 203
ip igmp snooping enable..................................................................................................................204
ip igmp snooping fast-leave............................................................................................................ 204
ip igmp snooping flood.................................................................................................................... 205
ip igmp snooping last-member-query-interval.............................................................................. 205
ip igmp snooping mrouter............................................................................................................... 206
ip igmp snooping querier................................................................................................................. 207
ip igmp version................................................................................................................................. 208
show ip igmp groups........................................................................................................................208
show ip igmp interface..................................................................................................................... 210
show ip igmp snooping mrouter...................................................................................................... 211
13 Interfaces..........................................................................................................212
Port Interface Commands................................................................................................................ 212
Port Channel Commands................................................................................................................. 212
Time Domain Reflectometer (TDR) Commands..............................................................................213
Virtual LAN (VLAN) Commands........................................................................................................ 213
auto vlan............................................................................................................................................ 214
channel-member.............................................................................................................................. 214
clear counters....................................................................................................................................216
clear mac-address-table dynamic....................................................................................................217
default vlan-id....................................................................................................................................217
description.........................................................................................................................................218
feature fc........................................................................................................................................... 219
flowcontrol........................................................................................................................................219
interface............................................................................................................................................ 222
interface ManagementEthernet....................................................................................................... 223
interface port-channel..................................................................................................................... 223
interface range..................................................................................................................................224
interface vlan.....................................................................................................................................226
intf-type cr4 autoneg........................................................................................................................227
keepalive............................................................................................................................................228
minimum-links..................................................................................................................................229
monitor interface..............................................................................................................................229
mtu.................................................................................................................................................... 232
name..................................................................................................................................................233
negotiation auto............................................................................................................................... 234
remote-fault-signaling rx................................................................................................................. 236
show config (INTERFACE mode)......................................................................................................237
show config (from INTERFACE RANGE mode)................................................................................237
show config (from INTERFACE VLAN mode).................................................................................. 238
show config (from PROTOCOL LLDP mode)..................................................................................238
show interfaces.................................................................................................................................239
show interfaces configured..............................................................................................................243
show interfaces description............................................................................................................. 244
show interfaces port-channel..........................................................................................................245
show interfaces stack-unit...............................................................................................................248
show interfaces status......................................................................................................................249
show interfaces switchport..............................................................................................................250
show tdr.............................................................................................................................................252
show vlan.......................................................................................................................................... 253
shutdown...........................................................................................................................................255
source (port monitoring for 40-Gigabit Ethernet).......................................................................... 256
speed (for 1000/10000 interfaces)...................................................................................................257
stack-unit portmode.........................................................................................................................258
tdr-cable-test....................................................................................................................................259
vlan tagged (CMC)............................................................................................................................ 259
vlan untagged (CMC)........................................................................................................................ 261
14 IPv4 Routing....................................................................................................263
clear tcp statistics............................................................................................................................. 263
debug ip dhcp...................................................................................................................................264
debug ip icmp................................................................................................................................... 265
ip route..............................................................................................................................................266
management route........................................................................................................................... 267
show arp............................................................................................................................................268
show ip interface...............................................................................................................................270
show ip management-route............................................................................................................ 272
show ip multicast-cam stack-unit................................................................................................... 273
show ip route.................................................................................................................................... 274
show tcp statistics.............................................................................................................................276
15 iSCSI Optimization......................................................................................... 279
advertise dcbx-app-tlv......................................................................................................................279
iscsi aging time..................................................................................................................................279
iscsi cos.............................................................................................................................................280
iscsi enable........................................................................................................................................ 281
iscsi priority-bits................................................................................................................................282
iscsi profile-compellent....................................................................................................................282
iscsi target port................................................................................................................................. 283
show iscsi..........................................................................................................................................284
show iscsi sessions........................................................................................................................... 285
show iscsi sessions detailed............................................................................................................. 285
16 Isolated Networks.......................................................................................... 287
io-aggregator isolated-network vlan...............................................................................................287
show io-aggregator isolated-networks ..........................................................................................288
17 Link Aggregation Control Protocol (LACP)............................................... 289
auto-lag enable................................................................................................................................ 289
clear lacp counters........................................................................................................................... 289
debug lacp........................................................................................................................................ 290
io-aggregator auto-lag enable.........................................................................................................291
lacp link-fallback member................................................................................................................ 291
lacp long-timeout.............................................................................................................................292
lacp port-priority...............................................................................................................................292
port-channel mode.......................................................................................................................... 293
port-channel-protocol lacp.............................................................................................................294
show interfaces port-channel..........................................................................................................295
show io-aggregator auto-lag status................................................................................................298
show lacp..........................................................................................................................................298
show link-bundle-distribution port-channel.................................................................................. 300
show port-channel-flow.................................................................................................................. 301
18 Layer 2.............................................................................................................. 303
MAC Addressing Commands........................................................................................................... 303
Virtual LAN (VLAN) Commands........................................................................................................303
clear mac-address-table dynamic...................................................................................................303
description........................................................................................................................................ 304
mac-address-table aging-time........................................................................................................305
mac-address-table static................................................................................................................. 305
mac-address-table station-move refresh-arp................................................................................306
show cam mac stack-unit................................................................................................................307
show mac-address-table................................................................................................................. 308
19 Link Layer Discovery Protocol (LLDP).........................................................311
advertise dot3-tlv...............................................................................................................................311
advertise management-tlv................................................................................................................312
clear lldp counters.............................................................................................................................313
clear lldp neighbors...........................................................................................................................313
debug lldp interface.......................................................................................................................... 314
disable................................................................................................................................................315
hello................................................................................................................................................... 315
multiplier............................................................................................................................................316
protocol lldp (Configuration)............................................................................................................316
protocol lldp (Interface).................................................................................................................... 317
show lldp neighbors..........................................................................................................................318
show lldp statistics............................................................................................................................ 318
20 Port Monitoring..............................................................................................320
description.........................................................................................................................................321
monitor session.................................................................................................................................321
show config.......................................................................................................................................322
show monitor session.......................................................................................................................322
show running-config monitor session............................................................................................ 323
source (port monitoring).................................................................................................................. 324
21 Quality of Service (QoS)................................................................................ 326
Per-Port QoS Commands................................................................................................................ 326
Policy-Based QoS Commands.........................................................................................................326
bandwidth-percentage.....................................................................................................................326
description.........................................................................................................................................327
dot1p-priority....................................................................................................................................328
policy-aggregate...............................................................................................................................329
policy-map-output...........................................................................................................................329
qos-policy-output............................................................................................................................ 330
rate-shape......................................................................................................................................... 331
service-class bandwidth-percentage.............................................................................................. 332
service-class dot1p-mapping...........................................................................................................333
service-class dynamic dot1p............................................................................................................334
service-policy output........................................................................................................................335
service-queue................................................................................................................................... 336
show qos dcb-map...........................................................................................................................337
show qos dot1p-queue-mapping....................................................................................................338
show qos qos-policy-output........................................................................................................... 338
22 Security............................................................................................................340
AAA Accounting Commands........................................................................................................... 340
aaa accounting........................................................................................................................... 340
aaa accounting suppress............................................................................................................ 342
aaa authorization commands.....................................................................................................342
aaa authorization config-commands........................................................................................ 343
aaa authorization exec............................................................................................................... 344
accounting.................................................................................................................................. 344
show accounting........................................................................................................................ 345
Authentication and Password Commands......................................................................................346
aaa authentication enable.......................................................................................................... 346
aaa authentication login............................................................................................................. 347
banner exec.................................................................................................................................349
banner login................................................................................................................................ 350
banner motd................................................................................................................................ 351
debug radius................................................................................................................................352
debug tacacs+.............................................................................................................................352
exec-banner................................................................................................................................352
ip radius source-interface...........................................................................................................353
ip tacacs source-interface..........................................................................................................354
login authentication....................................................................................................................355
RADIUS Commands..........................................................................................................................355
radius-server deadtime...............................................................................................................355
radius-server host....................................................................................................................... 356
radius-server key......................................................................................................................... 357
radius-server retransmit..............................................................................................................358
radius-server timeout................................................................................................................. 359
show privilege............................................................................................................................. 359
Suppressing AAA Accounting for Null Username Sessions............................................................ 360
TACACS+ Commands......................................................................................................................360
TACACS+ Accounting................................................................................................................ 360
tacacs-server host...................................................................................................................... 362
tacacs-server key........................................................................................................................ 363
timeout login response...............................................................................................................363
SSH Server and SCP Commands......................................................................................................364
enable password.........................................................................................................................364
enable restricted......................................................................................................................... 365
service password-encryption.....................................................................................................366
show ip ssh..................................................................................................................................367
show ip ssh client-pub-keys.......................................................................................................367
show ip ssh rsa-authentication.................................................................................................. 368
show users.................................................................................................................................. 369
ssh................................................................................................................................................370
username..................................................................................................................................... 371
23 Stacking Commands......................................................................................373
power-cycle stack-unit.................................................................................................................... 373
reset stack-unit................................................................................................................................. 374
show system stack-ports..................................................................................................................375
show system stack-unit fanout........................................................................................................ 377
show system stack-unit iom-mode................................................................................................. 377
show system stack-unit iom-uplink-speed.....................................................................................378
show system stack-unit stack-group...............................................................................................379
stack-unit iom-mode.......................................................................................................................380
stack-unit iom-mode uplink-speed.................................................................................................381
stack-unit priority..............................................................................................................................382
stack-unit renumber.........................................................................................................................382
24 Storm Control.................................................................................................384
io-aggregator broadcast storm-control..........................................................................................384
show io-aggregator broadcast storm-control status..................................................................... 385
show storm-control unknown-unicast........................................................................................... 385
storm-control broadcast (Interface)................................................................................................386
storm-control multicast (Interface)................................................................................................. 387
storm-control unknown-unicast (Interface)................................................................................... 387
25 System Time....................................................................................................389
calendar set.......................................................................................................................................389
clock read-calendar......................................................................................................................... 390
clock set.............................................................................................................................................391
clock summer-time date..................................................................................................................392
clock summer-time recurring..........................................................................................................393
clock timezone................................................................................................................................. 395
clock update-calendar..................................................................................................................... 395
ntp server.......................................................................................................................................... 396
show calendar...................................................................................................................................397
show clock........................................................................................................................................ 397
26 Uplink Failure Detection (UFD)....................................................................399
clear ufd-disable...............................................................................................................................399
debug uplink-state-group............................................................................................................... 400
defer-timer....................................................................................................................................... 400
description.........................................................................................................................................401
downstream......................................................................................................................................402
downstream auto-recover...............................................................................................................403
downstream disable links.................................................................................................................403
enable............................................................................................................................................... 404
show running-config uplink-state-group.......................................................................................405
show uplink-state-group................................................................................................................. 406
uplink-state-group........................................................................................................................... 407
upstream...........................................................................................................................................408
27 Virtual Link Trunking (VLT)...........................................................................410
back-up destination..........................................................................................................................410
clear vlt statistics................................................................................................................................411
lacp ungroup member-independent............................................................................................... 412
peer-link port-channel..................................................................................................................... 413
show vlt backup-link.........................................................................................................................413
show vlt brief.....................................................................................................................................414
show vlt detail....................................................................................................................................415
show vlt mismatch............................................................................................................................ 415
show vlt role......................................................................................................................................416
show vlt statistics.............................................................................................................................. 416
stack-unit iom-mode........................................................................................................................418
system-mac.......................................................................................................................................418
unit-id................................................................................................................................................ 419
vlt domain......................................................................................................................................... 420
vlt-peer-lag port-channel................................................................................................................420
28 Debugging and Diagnostics.........................................................................422
Offline Diagnostic Commands.........................................................................................................422
Hardware Commands...................................................................................................................... 422
clear hardware stack-unit.................................................................................................................423
diag stack-unit.................................................................................................................................. 424
hardware watchdog..........................................................................................................................425
offline stack-unit...............................................................................................................................426
show diag..........................................................................................................................................426
show hardware stack-unit................................................................................................................429
show hardware system-flow............................................................................................................436
A Internet Control Message Protocol (ICMP) Message Types.....................441
1
About this Guide
This book provides information about the Dell Networking OS command line interface (CLI) on the Dell
PowerEdge M I/O Aggregator.
This book also includes information about the protocols and features found in the Dell Networking OS
and on the Dell Networking systems supported by the Dell Networking OS.
References
For more information about your system, refer to the following documents:
• Dell PowerEdge M I/O Aggregator Configuration Guide
• Dell PowerEdge M I/O Aggregator Getting Started Guide
• Release Notes for the Dell PowerEdge M I/O Aggregator
Objectives
This book is intended as a reference guide for the Aggregator CLI commands, with detailed syntax
statements, along with usage information and sample output.
This guide contains an Appendix with a list of the request for comment (RFCs) and management
information base files (MIBs) supported.
NOTE: For more information about when to use the CLI commands, refer to the Dell PowerEdge M
I/O Aggregator Configuration Guide for your system.
16
About this Guide
Audience
This book is intended for system administrators who are responsible for configuring or maintaining
networks. This guide assumes that you are knowledgeable in Layer 2 and Layer 3 networking
technologies.
Conventions
This book uses the following conventions to describe command syntax.
Keyword
Keywords are in Courier font and must be entered in the CLI as listed.
parameter Parameters are in italics and require a number or word to be entered in the CLI.
{X} Keywords and parameters within braces must be entered in the CLI.
[X] Keywords and parameters within brackets are optional.
x|y Keywords and parameters separated by a bar require you to choose one option.
x||y Keywords and parameters separated by a double bar allows you to choose any or
all of the options.
Information Icons
This book uses the following information symbols:
NOTE: The Note icon signals important operational information.
CAUTION: The Caution icon signals information about situations that could result in equipment
damage or loss of data.
WARNING: The Warning icon signals information about hardware handling that could result in
injury.
About this Guide
17
2
Before You Start
By following the instructions in the Dell PowerEdge M I/O Aggregator Getting Started Guide that is
shipped with the product, you install the Aggregator in a Dell PowerEdge M1000e Enclosure.
The Aggregator installs with zero-touch configuration. After you power it on, an Aggregator boots up
with default settings and auto-configures with software features enabled. This chapter describes the
default settings and software features that are automatically configured at startup. Use the tasks
described in the other chapters to reconfigure the Aggregator for customized network operation.
Operational Modes
The I/O Aggregator supports four operational modes. Select the operational mode that meets your
deployment needs. To enable a new operational mode, reload the switch.
• Standalone mode — stack-unit unit iom-mode standalone. This is the default mode for IOA. It is fully
automated zero-touch mode that allows you to configure VLAN memberships. (Supported in CMC)
• Programmable MUX mode (PMUX) — stack-unit unit iom-mode programmable-mux. Select this
mode to configure PMUX mode CLI commands.
• Stacking mode — stack-unit unit iom-mode stacking. Select this mode to stack up to 6 IOA stack
units as a single logical switch. The stack units can be in the same or on different chassis. This is a
low-touch mode where all configuration except VLAN membership is automated. To enable VLAN,
you must configure it. In this operational mode, base module links are dedicated to stacking.
• Virtual Link Trunking mode (VLT) — stack-unit unit iom-mode vlt. Select this mode to multi-home
server interfaces to different IOA modules. This is a low-touch mode where all configuration except
VLAN membership is automated. To enable VLAN, you must configure it. In this mode, base module
links are dedicated to VLT interconnect.
For more information, refer to the Dell PowerEdge M I/O Aggregator Configuration Guide.
Default Settings
The I/O Aggregator provides zero-touch configuration with the following default configuration settings:
• Default user name (root)
• Password (calvin)
• VLAN (vlan1) and IP address for in-band management (DHCP-assigned)
• IP address for out-of-band (OOB) management (DHCP-assigned)
• Read-only SNMP community name (public)
18
Before You Start
• Broadcast storm control (enabled)
• Unregistered Multicast Packets flooding (enabled)
• IGMP snooping in all VLANs except the default VLAN (enabled)
• VLAN configuration (all ports belong to all VLANs)
You can change any of these default settings using the CLI. Refer to the appropriate chapter for details.
NOTE: You can also change many of the default settings using the chassis management controller
(CMC) interface. For information about how to access the CMC to configure an Aggregator, refer to
the
Dell PowerEdge M1000e Enclosure Hardware Owner's Manual or Dell Chassis Management
Controller (CMC) User’s Guide on the Dell Support website at http://support.dell.com/support/
edocs/systems/pem/en/index.htm.
Other Auto-Configured Settings
After the Aggregator powers on, it auto-configures and is operational with software features enabled,
including:
• VLANs: All ports are configured as members of all (4094) VLANs. All VLANs are up and can send or
receive layer 2 traffic. For more information, refer to VLANs.
• Data Center Bridging Capability Exchange Protocol (DCBX)
• Fibre Channel over Ethernet (FCoE) connectivity
• FCoE Initiation Protocol (FIP) snooping
• Hybrid ports: Ports are administratively up and auto-configured to operate as hybrid ports to transmit
tagged and untagged VLAN traffic.
• iSCSI optimization
• IGMP snooping
• Jumbo frames: Ports are set to a maximum MTU of 12,000 bytes by default.
• Link aggregation: All uplink ports are configured in a single LAG (LAG 128).
• Link Layer Discovery Protocol (LLDP): Enabled on all ports.
• Link tracking: Enables server-facing links to be brought up only if the uplink port-channel (LAG 128) is
up.
• Stacking: Stacking is supported only on the 40GbE ports on the base module. A single stack is limited
to six Aggregators in the same chassis. Up to three stacks are supported in an M1000e chassis. To
configure a switch stack, you must use the CLI. For more information, refer to Stacking Commands.
DCB Support
DCB enhancements for data center networks are supported to eliminate packet loss and provision links
with required bandwidth.
The Aggregator provides zero-touch configuration for DCB. The Aggregator auto-configures DCBX port
roles to match the DCBX configuration in the ToR switches to which it connects through its uplink ports.
The Aggregator supports DCB only in standalone mode and not in the stacking mode.
FCoE Connectivity
Many data centers use Fibre Channel (FC) in storage area networks (SANs). Fibre Channel over Ethernet
(FCoE) encapsulates Fibre Channel frames over Ethernet networks.
Before You Start
19
On an Aggregator, the internal ports support FCoE connectivity and connect to the converged network
adapter (CNA) in blade servers. FCoE allows Fibre Channel to use 10-Gigabit Ethernet networks while
preserving the Fibre Channel protocol.
The Aggregator also provides zero-touch configuration for FCoE configuration. The Aggregator auto-
configures to match the FCoE settings used in the ToR switches to which it connects through its uplink
ports.
iSCSI Operation
Support for iSCSI traffic is turned on by default when the Aggregator powers up. No configuration is
required.
When the Aggregator powers up, it monitors known TCP ports for iSCSI storage devices on all interfaces.
When a session is detected, an entry is created and monitored as long as the session is active.
The Aggregator also detects iSCSI storage devices on all interfaces and auto-configures to optimize
performance. Performance optimization operations, such as Jumbo frame size support, and disabling
storm control on interfaces connected to an iSCSI equallogic (EQL) storage device, are applied
automatically.
CLI configuration is necessary only when the configuration includes iSCSI storage devices that cannot be
automatically detected and when non-default QoS handling is required.
Link Aggregation
In Standalone, VLT, and Stacking modes, all uplink ports are configured in a single LAG (LAG 128). There
can be multiple uplink LAGs in programmable-mux mode. Server-facing ports are auto-configured as
part of link aggregation groups if the corresponding server is configured for LACP-based NIC teaming.
Static LAGs are supported in PUX mode.
NOTE: The recommended LACP timeout is Long-Timeout mode.
Link Tracking
By default, all server-facing ports are tracked by the operational status of the uplink LAG. If the uplink LAG
goes down, the Aggregator loses its connectivity and is no longer operational; all server-facing ports are
brought down.
NOTE: If installed servers do not have connectivity to a ToR switch, check the Link Status LED of
uplink ports on the Aggregator. If all LEDs are ON, check the LACP configuration on the ToR switch
that is connected to the Aggregator to ensure the LACP is correctly configured.
VLANs
By default, all Aggregator ports belong to all 4094 VLANs and are members of untagged VLAN 1. You can
use the CLI or CMC interface to configure only the required VLANs on a port.
20
Before You Start
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Dell PowerEdge M IO Aggregator User guide
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