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[Enterprise Switch] How to configure Link Aggregation on Edgecore switch? Follow

gavin_huang 黃冠穎

August 23, 2024 12:51
Updated

Edgecore enterprise switches' ports can be statically grouped into an aggregate link (i.e., trunk) to increase the bandwidth of a network connection or to ensure fault recovery. Or you can use the Link Aggregation Control Protocol (LACP) to automatically negotiate a trunk link between this switch and another network device.

Support Models: ECS4620 series, ECS4510 series, ECS4120 series, ECS4100 series, ECS5520 series, ECS4530 series, ECS2100 series, ECS2110 series, ECS3510 series

How to create Link Aggregation/Port-Channel on the switch ?
We have two methods to group the ports into an aggregate link, please refer to the following comparison table.

Link Aggregation/Port-Channel
Dynamic Mode	Manual Mode
Link Aggregation Control Protocol (LACP)	Static Trunk
LACP will automatically be assigned the next available port-channel ID.	Users have to create port-channel ID manually first.
Console(config)#interface ethernet 1/x Console(config-if)#lacp	Console(config)#interface ethernet 1/x Console(config-if)#channel-group channel-id
* Please note that LACP and static trunk can't be used together on the same interface.*

Topology:

1. Link Aggregation Control Protocol (LACP)
The configuration on the SW1 and SW2:

Console#configure
Console(config)#interface ethernet 1/1,2
Console(config-if)#lacp
Console(config-if)#end

The status of Port-channel:

Console#show interfaces status port-channel 1
Information of Trunk 1
 Basic Information:
 Port Type : 1000BASE-T
 MAC Address : 04-F8-F8-5C-2D-23
 Configuration:
 Name :
 Port Admin : Up
 Speed-duplex : Auto
 Capabilities : 10half, 10full, 100half, 100full, 1000full
 Broadcast Storm : Disabled
 Broadcast Storm Limit : 500 packets/second
 Multicast Storm : Disabled
 Multicast Storm Limit : 500 packets/second
 Unknown Unicast Storm : Disabled
 Unknown Unicast Storm Limit : 500 packets/second
 Storm Threshold Resolution : 1 packets/second
 Flow Control : Disabled
 VLAN Trunking : Disabled
 MAC Learning : Enabled
 Link-up-down Trap : Enabled
 Current Status:
 Created By : LACP
 Link Status : Up
 Port Operation Status : Up
 Operation Speed-duplex : 1000full
 Up Time : 0w 0d 0h 3m 37s (217 seconds)
 Flow Control Type : None
 Max Frame Size : 1518 bytes (1522 bytes for tagged frames)
 MAC Learning Status : Enabled
 Member Ports : Eth1/1, Eth1/2
 Active Member Ports : Eth1/1, Eth1/2

If you want to assign the LACP trunk link to the specific port-channel number, you need to use the admin-key.

Please refer to the FAQ: How to use admin-key to assign port-channel number ?

2. Static Trunk
The configuration on the SW1 and SW2:

Console#configure
Console(config)#interface port-channel 1
Console(config-if)#exit
Console(config)#interface ethernet 1/1,2
Console(config-if)#channel-group 1
Console(config-if)#end