Dell PowerEdge M IO Aggregator User guide
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Dell PowerEdge Command Line Reference
Guide for the M I/O Aggregator 9.6.(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 © 2014 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and
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2014 - 08
Contents
1 About this Guide..................................................................................................16
Objectives............................................................................................................................................ 16
Audience.............................................................................................................................................. 17
Conventions.........................................................................................................................................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..................................................................................................................26
Command Modes................................................................................................................................27
4 File Management................................................................................................ 30
boot system gateway..........................................................................................................................30
boot system stack-unit.......................................................................................................................30
cd..........................................................................................................................................................31
copy......................................................................................................................................................31
copy running-config startup-config.................................................................................................. 33
delete................................................................................................................................................... 33
dir.........................................................................................................................................................34
format flash......................................................................................................................................... 34
HTTP Copy via CLI.............................................................................................................................. 35
logging coredump stack-unit.............................................................................................................36
pwd...................................................................................................................................................... 36
rename.................................................................................................................................................37
restore factory-defaults...................................................................................................................... 37
show boot system...............................................................................................................................39
show file.............................................................................................................................................. 40
show file-systems................................................................................................................................41
show os-version..................................................................................................................................42
show running-config.......................................................................................................................... 43
show version....................................................................................................................................... 44
upgrade boot.......................................................................................................................................45
upgrade system...................................................................................................................................46
5 Control and Monitoring.................................................................................... 48
asset-tag..............................................................................................................................................48
clear alarms......................................................................................................................................... 48
clear command history.......................................................................................................................49
configure............................................................................................................................................. 49
debug cpu-traffic-stats.......................................................................................................................49
debug ifm trace-flags......................................................................................................................... 50
disable.................................................................................................................................................. 51
enable...................................................................................................................................................51
end....................................................................................................................................................... 52
exit........................................................................................................................................................52
ftp-server enable.................................................................................................................................52
ftp-server topdir.................................................................................................................................. 53
ftp-server username........................................................................................................................... 54
hostname.............................................................................................................................................54
ip telnet server enable.........................................................................................................................55
ip telnet source-interface................................................................................................................... 55
line....................................................................................................................................................... 56
ping......................................................................................................................................................56
reload...................................................................................................................................................58
service timestamps..............................................................................................................................59
show alarms........................................................................................................................................ 60
show command-history.....................................................................................................................60
show configuration lock..................................................................................................................... 61
show cpu-traffic-stats........................................................................................................................ 62
show debugging..................................................................................................................................63
show diag............................................................................................................................................ 63
show environment..............................................................................................................................64
show inventory....................................................................................................................................65
show memory..................................................................................................................................... 67
show processes cpu............................................................................................................................67
show processes ipc flow-control....................................................................................................... 71
show processes memory....................................................................................................................73
show revision.......................................................................................................................................75
show server-interfaces....................................................................................................................... 76
show system........................................................................................................................................ 77
show tech-support............................................................................................................................. 79
show uplink brief................................................................................................................................. 81
show util-threshold cpu..................................................................................................................... 83
show util-threshold memory..............................................................................................................83
ssh-peer-stack-unit............................................................................................................................84
telnet....................................................................................................................................................84
telnet-peer-stack-unit........................................................................................................................85
terminal length....................................................................................................................................85
terminal monitor................................................................................................................................. 86
terminal xml........................................................................................................................................ 86
trace route...........................................................................................................................................86
undebug all..........................................................................................................................................87
write.....................................................................................................................................................88
6 u-Boot.................................................................................................................. 89
boot change........................................................................................................................................89
boot selection..................................................................................................................................... 89
boot show net config retries..............................................................................................................90
boot write net config retries...............................................................................................................90
boot zero.............................................................................................................................................90
default gateway................................................................................................................................... 91
enable...................................................................................................................................................91
help...................................................................................................................................................... 91
ignore enable password......................................................................................................................92
ignore startup-config..........................................................................................................................92
interface management ethernet ip address.......................................................................................92
no default gateway..............................................................................................................................93
no interface management ethernet ip address................................................................................. 93
reload...................................................................................................................................................93
show boot blc..................................................................................................................................... 93
show boot selection........................................................................................................................... 94
show bootflash....................................................................................................................................94
show bootvar...................................................................................................................................... 95
show default gateway.........................................................................................................................96
show interface management ethernet.............................................................................................. 96
show interface management port config..........................................................................................96
syntax help...........................................................................................................................................97
7 Data Center Bridging (DCB)..............................................................................98
clear ets counters................................................................................................................................99
clear pfc counters............................................................................................................................... 99
dcb enable auto-detect on-next-reload.........................................................................................100
dcb <ets | pfc> enable.......................................................................................................................102
dcb-input...........................................................................................................................................103
dcb-map............................................................................................................................................104
dcb-policy input................................................................................................................................105
dcb-policy input stack-unit stack-ports all..................................................................................... 106
dcbx version...................................................................................................................................... 106
qos-policy-output ets.......................................................................................................................107
show dcb...........................................................................................................................................108
show interface dcbx detail................................................................................................................109
show interface ets..............................................................................................................................112
show interface pfc............................................................................................................................. 115
show interface pfc statistics.............................................................................................................. 117
show qos dcb-map........................................................................................................................... 118
show stack-unit stack-ports ets details............................................................................................119
show stack-unit stack-ports pfc details...........................................................................................120
8 Dynamic Host Configuration Protocol.........................................................121
ip address dhcp..................................................................................................................................121
clear ip dhcp client statistics.............................................................................................................122
debug ip dhcp client events..............................................................................................................122
debug ip dhcp client packets............................................................................................................123
release dhcp interface.......................................................................................................................124
renew dhcp interface........................................................................................................................124
show ip dhcp client statistics............................................................................................................125
show ip dhcp lease............................................................................................................................125
9 FIP Snooping......................................................................................................127
show fip-snooping statistics............................................................................................................. 127
debug fip-snooping.......................................................................................................................... 130
show fip-snooping config.................................................................................................................131
show fip-snooping enode.................................................................................................................131
show fip-snooping fcf.......................................................................................................................132
show fip-snooping sessions............................................................................................................. 133
show fip-snooping statistics.............................................................................................................134
show fip-snooping system................................................................................................................137
10 Internet Group Management Protocol (IGMP).........................................139
IGMP Commands..............................................................................................................................139
clear ip igmp groups................................................................................................................... 139
debug ip igmp............................................................................................................................. 140
ip igmp snooping flood...............................................................................................................140
show ip igmp groups...................................................................................................................141
show ip igmp interface................................................................................................................142
show ip igmp snooping mrouter................................................................................................ 143
11 Interfaces......................................................................................................... 144
Port Interface Commands................................................................................................................ 144
Port Channel Commands................................................................................................................. 145
Time Domain Reflectometer (TDR) Commands..............................................................................145
Virtual LAN (VLAN) Commands........................................................................................................ 146
auto vlan............................................................................................................................................146
clear counters................................................................................................................................... 146
clear mac-address-table dynamic....................................................................................................147
clear mac-address-table dynamic................................................................................................... 148
default vlan-id................................................................................................................................... 148
description.........................................................................................................................................149
flowcontrol........................................................................................................................................149
group..................................................................................................................................................152
interface range.................................................................................................................................. 153
interface range macro (define)......................................................................................................... 155
interface range macro name............................................................................................................ 156
interface vlan..................................................................................................................................... 157
intf-type cr4 autoneg........................................................................................................................ 157
keepalive............................................................................................................................................158
monitor interface.............................................................................................................................. 158
name..................................................................................................................................................160
negotiation auto................................................................................................................................ 161
flowcontrol........................................................................................................................................163
source (port monitoring for 40-Gigabit Ethernet).......................................................................... 166
show config (INTERFACE mode)...................................................................................................... 167
show config (from INTERFACE RANGE mode)................................................................................167
show config (from INTERFACE VLAN mode)...................................................................................168
show config (from PROTOCOL LLDP mode).................................................................................. 168
show interfaces................................................................................................................................. 168
show interfaces configured.............................................................................................................. 173
show interfaces description..............................................................................................................174
show interfaces port-channel...........................................................................................................175
show interfaces stack-unit................................................................................................................178
show interfaces status.......................................................................................................................179
show interfaces switchport...............................................................................................................179
show range........................................................................................................................................ 181
show tdr............................................................................................................................................. 181
show vlan...........................................................................................................................................182
shutdown...........................................................................................................................................184
speed (for 1000/10000 interfaces)...................................................................................................185
tdr-cable-test....................................................................................................................................186
vlan tagged (CMC)............................................................................................................................ 186
vlan untagged (CMC)........................................................................................................................ 187
12 IPv4 Routing....................................................................................................190
clear tcp statistics..............................................................................................................................190
debug ip dhcp................................................................................................................................... 190
debug ip icmp....................................................................................................................................191
ip route.............................................................................................................................................. 192
management route........................................................................................................................... 194
show arp............................................................................................................................................194
show ip interface...............................................................................................................................196
show ip management-route............................................................................................................ 198
show ip multicast-cam stack-unit................................................................................................... 199
show ip route....................................................................................................................................200
show tcp statistics............................................................................................................................ 202
13 iSCSI Optimization.........................................................................................205
show iscsi..........................................................................................................................................205
show iscsi sessions........................................................................................................................... 206
show iscsi sessions detailed.............................................................................................................206
14 Isolated Networks..........................................................................................208
io-aggregator isolated-network vlan.............................................................................................. 208
show io-aggregator isolated-networks ..........................................................................................208
15 Link Aggregation Control Protocol (LACP)............................................... 210
auto-lag enable.................................................................................................................................210
clear lacp counters............................................................................................................................210
debug lacp......................................................................................................................................... 211
io-aggregator auto-lag enable.........................................................................................................212
show io-aggregator auto-lag status.................................................................................................212
show lacp...........................................................................................................................................212
show link-bundle-distribution port-channel...................................................................................214
16 Layer 2.............................................................................................................. 216
MAC Addressing Commands............................................................................................................216
Virtual LAN (VLAN) Commands........................................................................................................ 216
clear mac-address-table dynamic................................................................................................... 216
description......................................................................................................................................... 217
show cam mac stack-unit.................................................................................................................217
17 Link Layer Discovery Protocol (LLDP).........................................................219
clear lldp counters.............................................................................................................................219
debug lldp interface..........................................................................................................................220
protocol lldp (Configuration)............................................................................................................221
protocol lldp (Interface).................................................................................................................... 221
show lldp neighbors......................................................................................................................... 222
show lldp statistics............................................................................................................................222
18 Port Monitoring..............................................................................................224
description.........................................................................................................................................225
monitor session.................................................................................................................................225
show config...................................................................................................................................... 226
show monitor session.......................................................................................................................226
show running-config monitor session.............................................................................................227
source (port monitoring).................................................................................................................. 228
19 Quality of Service (QoS)................................................................................229
Policy-Based QoS Commands.........................................................................................................229
show qos dot1p-queue-mapping....................................................................................................229
20 Security for M I/O Aggregator.....................................................................230
AAA Accounting Commands............................................................................................................230
aaa accounting................................................................................................................................. 230
aaa accounting suppress.................................................................................................................. 232
aaa authorization commands...........................................................................................................233
aaa authorization config-commands.............................................................................................. 234
aaa authorization exec..................................................................................................................... 234
show accounting.............................................................................................................................. 235
Authentication and Password Commands...................................................................................... 236
aaa authentication enable................................................................................................................ 237
aaa authentication login...................................................................................................................238
banner exec.......................................................................................................................................239
banner login......................................................................................................................................240
banner motd..................................................................................................................................... 242
debug radius..................................................................................................................................... 242
debug tacacs+.................................................................................................................................. 243
exec-banner......................................................................................................................................243
ip radius source-interface................................................................................................................ 243
ip tacacs source-interface................................................................................................................244
login authentication..........................................................................................................................245
RADIUS Commands..........................................................................................................................246
radius-server deadtime.....................................................................................................................246
radius-server host.............................................................................................................................246
radius-server retransmit................................................................................................................... 248
radius-server timeout.......................................................................................................................248
radius-server key.............................................................................................................................. 249
show privilege...................................................................................................................................250
Suppressing AAA Accounting for Null Username Sessions.............................................................250
TACACS+ Accounting...................................................................................................................... 250
TACACS+ Commands...................................................................................................................... 252
tacacs-server host............................................................................................................................ 252
tacacs-server key.............................................................................................................................. 253
timeout login response.....................................................................................................................254
SSH Server and SCP Commands......................................................................................................254
enable password............................................................................................................................... 255
enable restricted............................................................................................................................... 256
enable ioa-debug..............................................................................................................................256
service password-encryption........................................................................................................... 257
show ip ssh........................................................................................................................................257
show ip ssh client-pub-keys............................................................................................................ 258
show ip ssh rsa-authentication........................................................................................................ 259
show users........................................................................................................................................ 259
ssh..................................................................................................................................................... 260
username...........................................................................................................................................261
21 Simple Network Management Protocol (SNMP) and Syslog..................263
SNMP Commands.............................................................................................................................263
Syslog Commands............................................................................................................................263
clear logging..................................................................................................................................... 264
logging buffered............................................................................................................................... 264
logging console................................................................................................................................ 265
logging hostname.............................................................................................................................266
logging monitor................................................................................................................................266
logging source-interface..................................................................................................................267
logging trap....................................................................................................................................... 267
show logging.................................................................................................................................... 268
terminal monitor...............................................................................................................................270
22 Stacking Commands......................................................................................271
power-cycle stack-unit.....................................................................................................................271
reset stack-unit................................................................................................................................. 272
show system stack-ports..................................................................................................................273
show system stack-unit fanout........................................................................................................ 275
show system stack-unit iom-mode................................................................................................. 275
show system stack-unit iom-uplink-speed.....................................................................................276
show system stack-unit stack-group...............................................................................................276
stack-unit iom-mode........................................................................................................................277
stack-unit iom-mode uplink-speed.................................................................................................278
stack-unit priority..............................................................................................................................279
stack-unit renumber.........................................................................................................................279
23 System Time.................................................................................................... 281
calendar set....................................................................................................................................... 281
ntp server.......................................................................................................................................... 282
show calendar...................................................................................................................................283
show clock........................................................................................................................................283
clock read-calendar......................................................................................................................... 284
clock set............................................................................................................................................ 285
clock summer-time date..................................................................................................................285
clock summer-time recurring..........................................................................................................287
clock timezone................................................................................................................................. 288
clock update-calendar..................................................................................................................... 289
24 Uplink Failure Detection (UFD)................................................................... 290
defer-timer........................................................................................................................................290
enable................................................................................................................................................290
25 Virtual Link Trunking (VLT)...........................................................................292
show vlt backup-link........................................................................................................................ 292
show vlt brief.....................................................................................................................................293
show vlt detail................................................................................................................................... 293
show vlt role......................................................................................................................................294
show vlt statistics..............................................................................................................................294
stack-unit iom-mode....................................................................................................................... 296
26 Debugging and Diagnostics.........................................................................297
Offline Diagnostic Commands.........................................................................................................297
Hardware Commands.......................................................................................................................297
clear hardware stack-unit................................................................................................................ 298
diag stack-unit.................................................................................................................................. 298
hardware watchdog......................................................................................................................... 300
offline stack-unit.............................................................................................................................. 300
show diag.......................................................................................................................................... 301
show hardware stack-unit................................................................................................................303
show hardware system-flow............................................................................................................ 310
27 FC Flex IO Modules........................................................................................ 314
FC Flex IO Modules........................................................................................................................... 314
Data Center Bridging (DCB) for FC Flex IO Modules.......................................................................314
Interworking of DCB Map With DCB Buffer Threshold Settings..................................................... 315
dcb-map...................................................................................................................................... 315
priority-pgid.................................................................................................................................316
priority-group bandwidth pfc..................................................................................................... 318
dcb-map stack-unit all stack-ports all....................................................................................... 319
show qos dcb-map.....................................................................................................................320
DCB Command........................................................................................................................... 321
ETS Commands...........................................................................................................................328
28 PMUX Mode of the I/O Aggregator............................................................ 345
Data Center Bridging (DCB)............................................................................................................. 345
advertise dcbx-appln-tlv.............................................................................................................345
advertise dcbx-tlv....................................................................................................................... 346
bandwidth-percentage...............................................................................................................346
dcb-enable.................................................................................................................................. 347
dcb-map......................................................................................................................................348
dcb-policy input stack-unit stack-ports all............................................................................... 349
dcb-policy output.......................................................................................................................349
dcb-map stack-unit all stack-ports all.......................................................................................350
dcb-policy input stack-unit stack-ports all............................................................................... 350
dcb-policy output........................................................................................................................351
dcb stack-unit all pfc-buffering pfc-port-count pfc-queues...................................................352
dcb stack-unit pfc-buffering pfc-port-count pfc-queues....................................................... 352
dcbx port-role............................................................................................................................. 353
dcbx version................................................................................................................................ 354
debug dcbx..................................................................................................................................355
fc-map.........................................................................................................................................356
fcoe priority-bits......................................................................................................................... 356
fcoe-map.....................................................................................................................................357
fka-adv-period............................................................................................................................ 358
iscsi priority-bits..........................................................................................................................359
keepalive......................................................................................................................................359
interface vlan (NPIV proxy gateway).......................................................................................... 360
pfc link-delay...............................................................................................................................361
pfc mode on................................................................................................................................ 361
pfc no-drop queues....................................................................................................................362
pfc priority................................................................................................................................... 363
priority-pgid................................................................................................................................ 363
pfc mode on................................................................................................................................365
priority-group bandwidth pfc.....................................................................................................365
qos-policy-output ets.................................................................................................................367
scheduler.....................................................................................................................................367
show dcb.....................................................................................................................................368
show interface dcbx detail......................................................................................................... 369
show interface ets....................................................................................................................... 372
show interface pfc...................................................................................................................... 376
show interface pfc statistics....................................................................................................... 379
show stack-unit stack-ports ets details.....................................................................................380
show stack-unit stack-ports pfc details..................................................................................... 381
FIP Snooping..................................................................................................................................... 381
clear fip-snooping database interface vlan............................................................................... 382
iSCSI Optimization............................................................................................................................385
advertise dcbx-app-tlv................................................................................................................385
iscsi aging time............................................................................................................................385
iscsi cos....................................................................................................................................... 386
iscsi enable..................................................................................................................................386
iscsi priority-bits.......................................................................................................................... 387
iscsi profile-compellant.............................................................................................................. 387
iscsi target port........................................................................................................................... 388
Interfaces.......................................................................................................................................... 388
Basic Interface Commands........................................................................................................ 389
clear counters............................................................................................................................. 389
description.................................................................................................................................. 389
flowcontrol..................................................................................................................................390
interface ManagementEthernet................................................................................................. 393
interface.......................................................................................................................................393
interface vlan...............................................................................................................................394
interface range............................................................................................................................ 395
keepalive......................................................................................................................................397
mtu...............................................................................................................................................397
negotiation auto..........................................................................................................................399
portmode hybrid......................................................................................................................... 401
stack-unit portmode...................................................................................................................403
Port Channel Commands.......................................................................................................... 404
channel-member........................................................................................................................404
interface port-channel.....................................................................................................................406
minimum-links..................................................................................................................................407
Internet Group Management Protocol (IGMP)................................................................................407
IGMP Commands........................................................................................................................407
IGMP Snooping Commands....................................................................................................... 412
Layer 2............................................................................................................................................... 416
MAC Addressing Commands...................................................................................................... 417
mac-address-table aging-time...................................................................................................417
mac-address-table static............................................................................................................ 417
mac-address-table station-move refresh-arp...........................................................................418
Link Aggregation Control Protocol (LACP)......................................................................................418
lacp long-timeout....................................................................................................................... 418
lacp port-priority.........................................................................................................................419
port-channel mode.....................................................................................................................419
port-channel-protocol lacp.......................................................................................................420
Link Layer Discovery Protocol (LLDP).............................................................................................. 421
advertise dot3-tlv........................................................................................................................ 421
clear lldp counters...................................................................................................................... 422
debug lldp interface....................................................................................................................422
advertise management-tlv..........................................................................................................423
clear lldp neighbors.................................................................................................................... 424
disable......................................................................................................................................... 424
hello.............................................................................................................................................425
multiplier......................................................................................................................................425
Quality of Service (QoS)................................................................................................................... 426
Per-Port QoS Commands.......................................................................................................... 426
dot1p-priority..............................................................................................................................426
service-class dynamic dot1p...................................................................................................... 427
service-class dot1p-mapping.....................................................................................................428
service-class bandwidth-percentage........................................................................................ 429
Policy-Based QoS Commands...................................................................................................430
bandwidth-percentage...............................................................................................................430
description.................................................................................................................................. 430
policy-aggregate......................................................................................................................... 431
policy-map-output..................................................................................................................... 431
qos-policy-output...................................................................................................................... 432
rate-shape................................................................................................................................... 433
service-policy output..................................................................................................................433
service-queue............................................................................................................................. 434
show qos qos-policy-output......................................................................................................435
Simple Network Management Protocol (SNMP) and Syslog.......................................................... 435
SNMP Commands.......................................................................................................................435
Syslog Commands......................................................................................................................440
Storm Control...................................................................................................................................448
show storm-control unknown-unicast.....................................................................................449
show io-aggregator broadcast storm-control status............................................................... 450
Uplink Failure Detection (UFD).........................................................................................................450
debug uplink-state-group..........................................................................................................450
description...................................................................................................................................451
downstream.................................................................................................................................451
downstream auto-recover......................................................................................................... 453
downstream disable links........................................................................................................... 453
enable..........................................................................................................................................454
show running-config uplink-state-group................................................................................. 455
show uplink-state-group............................................................................................................456
uplink-state-group......................................................................................................................457
upstream..................................................................................................................................... 458
Virtual Link Trunking (VLT)............................................................................................................... 460
back-up destination................................................................................................................... 460
clear vlt statistics......................................................................................................................... 461
lacp ungroup member-independent.........................................................................................462
peer-link port-channel...............................................................................................................463
show vlt mismatch......................................................................................................................464
system-mac................................................................................................................................ 465
unit-id..........................................................................................................................................465
vlt domain................................................................................................................................... 466
vlt-peer-lag port-channel.......................................................................................................... 467
A Internet Control Message Protocol (ICMP) Message Types.................... 469
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.
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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