Link aggregation is known as Trunking, Bridge Aggregation and Port Channel Configuration. All 3 mean the same thing, use a group of ports to provide load balancing, link resilience and maximize bandwidth.

We will go through configuring each series of switch, then setup to use the LACP protocol and the finally allow VLANs over the links.

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Interface Bridge Port-Channel :

interface Bridge-Aggregation 11
description LACP to W4ETSEACCSW02
port link-type trunk
port trunk permit vlan all
link-aggregation mode dynamic
stp loop-protection
mad enable
!

Interface Port-Channel Bind to Bridge :

interface Ten-GigabitEthernet1/0/46
port link-mode bridge
description Uplink to ** UKBILLMCFW3**
port link-type trunk
port trunk permit vlan all
port link-aggregation group 11
!
interface Ten-GigabitEthernet2/0/46
port link-mode bridge
description Uplink to ** UKBILLMCFW4**
port link-type trunk
port trunk permit vlan all
port link-aggregation group 11

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To show our link aggregation information :

display link-aggregation summary
Verifying Spanning-Tree :

displ stp brief