trunk mode configuration with two cables between two switches

[jacobinio1]

Good morning all

I would like to configure two ports of two switches in trunk mode so that the two cables can carry each of the packets because sometimes I do it but I realize that there is only one cable carrying it.

[balaji.bandi]

If they are individual truk one of the port go blocking mode due tp spanning tree, if you like to use both the links, then configure port-channel (is this make sense ?)

even if you configure port-channel traffic use only 1 -  but they use distributed load.

[pieterh · Accepted solution]

that will be no problem, the necessary commands are (may vary depending on switch model and IOS version):

     interface GigabitEthernet1/0/4

      switchport mode trunk

      channel-group 1 mode active

     !

     interface GigabitEthernet3/0/4

      switchport mode trunk

      channel-group 1 mode active

     !

     interface Port-channel1

      switchport mode trunk

from here on you make most changes using the virtual interface Port-channel-1,

not on each separate physical interface 

[jacobinio1 · Accepted solution]

Hello Mr Pieterh
Thank you very much and have peace.