OcNOS-SP : Layer 2 Guide : Layer 2 Configuration Guide : Link Aggregation Configuration : Dynamic LAG Configuration
Dynamic LAG Configuration
SW1
 
SW1#configure terminal
Enter configure mode.
SW1(config)# bridge 1 protocol mstp
Configure bridge 1 as MSTP bridge
SW1(config)# vlan database
Enter VLAN database mode.
SW1(config-vlan)# vlan 2-10 bridge 1 state enable
Configure a VLAN and add it to the bridge.
SW1(config-vlan)# commit
Commit the candidate configuration to the running Configuration.
SW1(config-vlan)# exit
Exit the VLAN configuration mode.
SW1(config)#lacp system-priority 20000
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.
SW1(config)#interface po10
Enter into port channel interface po10.
SW1(config-if)#switchport
Configure po10 as a layer 2 port.
SW1(config-if)#bridge-group 1
Associate bridge to an interface.
SW1(config-if)#switchport mode trunk
Configure port as a trunk.
SW1(config-if)#switchport trunk allowed vlan all
Allow all the VLANs on the po10 interface.
SW1(config-if)#commit
Commit the candidate configuration to the running
Configuration.
SW1(config-if)#exit
Exit interface mode.
SW1(config)#interface eth1
Enter interface mode.
SW1(config-if)#channel-group 10 mode active
Add this interface to channel group 10 and enable link aggregation so that it can be selected for aggregation by the local system.
SW1(config-if)#commit
Commit the candidate configuration to the running
Configuration.
SW1(config-if)#exit
Exit interface mode.
SW1(config)#interface eth2
Enter interface mode.
SW1(config-if)#channel-group 10 mode active
Add this interface to channel group 10 and enable link aggregation so that it can be selected for aggregation by the local system.
SW1(config-if)#commit
Commit the candidate configuration to the running
Configuration.
SW1(config-if)#exit
Exit interface mode.
SW1(config)#interface eth3
Enter interface mode.
SW1(config-if)#channel-group 10 mode active
Add this interface to channel group 10 and enable link aggregation so that it can be selected for aggregation by the local system.
SW1(config-if)#commit
Commit the candidate configuration to the running
Configuration.
SW1(config-if)#exit
Exit interface mode.
SW2
 
SW2#configure terminal
Enter configure mode.
SW2(config)# bridge 1 protocol mstp
Configure bridge 1 as MSTP bridge
SW2(config)# vlan database
Enter VLAN database mode.
SW2(config-vlan)# vlan 2-10 bridge 1 state enable
Configure a VLAN and add it to the bridge.
SW2(config-vlan)# commit
Commit the candidate configuration to the running Configuration.
SW2(config-vlan)# exit
Exit the VLAN configuration mode.
SW2(config)#lacp system-priority 20000
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.
SW2(config)#interface po10
Enter into port channel interface po10.
SW2(config-if)#switchport
Configure po10 as a layer 2 port.
SW2(config-if)#bridge-group 1
Associate bridge to an interface.
SW2(config-if)#switchport mode trunk
Configure port as a trunk.
SW2(config-if)#switchport trunk allowed vlan all
Allow all the VLANs on the po10 interface.
SW2(config-if)#commit
Commit the candidate configuration to the running
Configuration.
SW2(config-if)#exit
Exit interface mode.
SW2(config)#interface eth2
Enter interface mode.
SW2(config-if)#channel-group 10 mode active
Add this interface to channel group 10 and enable link aggregation so that it can be selected for aggregation by the local system.
SW2(config-if)#commit
Commit the candidate configuration to the running
Configuration.
SW2(config-if)#exit
Exit interface mode.
SW2(config)#interface eth3
Enter interface mode.
SW2(config-if)#channel-group 10 mode active
Add this interface to channel group 10 and enable link aggregation so that it can be selected for aggregation by the local system.
SW2(config-if)#commit
Commit the candidate configuration to the running
Configuration.
SW2(config-if)#exit
Exit interface mode.
SW2(config)#interface eth4
Enter interface mode.
SW2(config-if)#channel-group 10 mode active
Add this interface to channel group 10 and enable link aggregation so that it can be selected for aggregation by the local system.
SW2(config-if)#commit
Commit the candidate configuration to the running
Configuration.
SW2(config-if)#exit
Exit interface mode.
Validation
show etherchannel detail, show etherchannel summary, show running-config interface po10, show running-config interface eth1
#show etherchannel detail
% Aggregator po10 7
% Aggregator Type: Layer2
% Mac address: 08:00:27:50:6a:9b
% Admin Key: 0010 - Oper Key 0010
% Actor LAG ID- 0x4e20,08-00-27-ab-ea-38,0x000a
% Receive link count: 3 - Transmit link count: 3
% Individual: 0 - Ready: 1
% Partner LAG ID- 0x4e20,08-00-27-f8-3c-30,0x000a
% Link: eth1 (3) sync: 1
% Link: eth2 (4) sync: 1
% Link: eth3 (5) sync: 1
% Collector max delay: 5
 
#show etherchannel summary
% Aggregator po10 7
% Aggregator Type: Layer2
% Admin Key: 0010 - Oper Key 0010
% Aggregator Type: Layer2
% Link: eth1 (3) sync: 1
% Link: eth2 (4) sync: 1
% Link: eth3 (5) sync: 1
 
#show running-config interface po10
!
interface po10
switchport
bridge-group 1
switchport mode trunk
switchport trunk allowed vlan all
#show running-config interface eth1
!
interface eth1
channel-group 10 mode active
Last modified date: 10/12/2023