po port channel or link aggregation LAG

Owned by Jean-luc KRIKER
Last updated: Jul 15, 2024
4 min read


Interfaceto channel-group

interface ce4
description xxxxxx
channel-group 10 mode active
port channel 

10 = channel-group 

100 = vlan ID

interface po10.100 switchport
encapsulation dot1q 100
access-if-evpn
map vpn-id 100

interface po10
description orex-<MFID>-olt-10-1
switchport
mtu 9200
evpn multi-homed system-mac <Netbox_site_ID>.0010.0010
system priority
Before
before
R3-ROOT#show port etherchannel po1
LAG ID                       : 0x8000,00-00-00-23-40-20,0x0001
Partner oper LAG ID          : 0x0000,00-00-00-00-00-00,0xffff
  LACP link info             : cd0 - 10001
  Periodic Transmission
  machine state              : No periodic
  Receive machine state      : Port disabled
  Mux machine state          : Detached
  Actor Info :
  ===========
  Actor Port priority        : 0x8000 (32768)
  Admin key                  : 0x0001 (1) Oper key: 0x0001 (1)
  Physical admin key         : (1)
  Actor Oper state           : ACT:1 TIM:0 AGG:1 SYN:0 COL:0 DIS:0 DEF:1 EXP:0
  Actor Admin state          : ACT:1 TIM:0 AGG:1 SYN:0 COL:0 DIS:0 DEF:1 EXP:0
  Partner Info:
  ============
  Partner oper port          : 0
  Partner link info          : admin port 0
  Partner admin LAG ID       : 0x0000-00:00:00:00:0000
  Partner system priority    : admin:0x0000 - oper:0x0000
  Partner port priority      : admin:0x0000 - oper:0x0000
  Partner oper state         : ACT:0 TIM:0 AGG:1 SYN:0 COL:0 DIS:0 DEF:1 EXP:0
  Partner admin state        : ACT:0 TIM:0 AGG:1 SYN:0 COL:0 DIS:0 DEF:1 EXP:0


Afterlacp system-priority 40000

Set the system priority of this switch.

This priority is used for determining the system that is responsible for resolving conflicts in the choice of aggregation groups.

A lower numerical value has a higher priority.


show port etherchannel po1

show etherchannel detail

after
R3-ROOT#show port etherchannel po1
LAG ID                       : 0x9c40,00-00-00-23-40-20,0x0001
Partner oper LAG ID          : 0x8000,e8-c5-7a-d4-d8-0c,0x0001
Aggregator ID                : 100001
  LACP link info             : cd0 - 10001
  Periodic Transmission
  machine state              : Slow periodic
  Receive machine state      : Current
  Mux machine state          : Collecting/Distributing
  Actor Info :
  ===========
  Actor Port priority        : 0x8000 (32768)
  Admin key                  : 0x0001 (1) Oper key: 0x0001 (1)
  Physical admin key         : (1)
  Actor Oper state           : ACT:1 TIM:0 AGG:1 SYN:1 COL:1 DIS:1 DEF:0 EXP:0
  Actor Admin state          : ACT:1 TIM:0 AGG:1 SYN:0 COL:0 DIS:0 DEF:1 EXP:0
  Partner Info:
  ============
  Partner oper port          : 10009
  Partner link info          : admin port 0
  Partner admin LAG ID       : 0x0000-00:00:00:00:0000
  Partner system priority    : admin:0x0000 - oper:0x8000
  Partner port priority      : admin:0x0000 - oper:0x8000
  Partner oper state         : ACT:1 TIM:0 AGG:1 SYN:1 COL:1 DIS:1 DEF:0 EXP:0
  Partner admin state        : ACT:0 TIM:0 AGG:1 SYN:0 COL:0 DIS:0 DEF:1 EXP:0



R3-ROOT#show etherchannel detail
 Aggregator po1 100001
 Aggregator Type: Layer3
  Mac address: e8:c5:7a:d4:d6:45
  Admin Key: 0001 - Oper Key 0001
   Actor LAG ID- 0x9c40,00-00-00-23-40-20,0x0001
   Receive link count: 1 - Transmit link count: 1
   Individual: 0 - Ready: 1
  Partner LAG ID- 0x8000,e8-c5-7a-d4-d8-0c,0x0001
    Link: cd0 (10001) sync: 1
  Collector max delay: 5