we can bundle up to 8 identical link that means EtherChannel must have the same speed, duplex mode, trunk mode, native VLAN, allowed VLAN and port type.
> PAgP == (Port aggregation protocol) is work only for cisco
> LACP = (Link Aggregation Control protocol) is standards for all ventor
If you expect a PAaP-capable switch to be on the far end, you should add the non-silent keyword to the desirable or auto mode. in this case, PAgP is not heard on an active port, the port remains in the up state, but PAgP reports to the spanning Tree protocol (STP) that the port is down.
Channel-group number mode auto non-silent
In LACP we can set up to 16 potential links for each EtherChannel. but the switch only selects
up to eight links that having the lowest port priorities as active EtherChannel links at any given time. the other links are placed in a standby state and be enabled if one of the active links goes down.
The port with lower port priority value are selected and become active
Changing the priority on the port follow below command
Switch(config)# LACP port-priority (priority)
Channel-group can be (1 to 64) depend on the SW
Show command TOOLS
Show Etherchannel summary (SU) state up (SD) state down
Show EtherChannel status
Show PAgP neighbor
Show LCAP neighbor
Show EtherChannel load-balance
Types Of Ether channel Load Balancing Methods
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