[c-nsp] Port channels and etherchannels

Oliver Boehmer (oboehmer) oboehmer at cisco.com
Tue Oct 3 06:29:52 EDT 2006


cisco-nsp-bounces at puck.nether.net <> wrote on Tuesday, October 03, 2006
10:56 AM:



> 
> set port channel 9/21-22 371
> 
> ...
> 
> Router config is:
> 
> interface Port-channel3
>  description Clients Interlink - 7513
>  no ip address
>  full-duplex
> !
> interface Port-channel3.1
>  description Native VLAN
>  encapsulation dot1Q 102 native
>  ip vrf forwarding VF
>  ip address 172.21.150.2 255.255.255.0
> !
> 
> ...
> 
> interface FastEthernet3/0/0
>  description EtherChannel to Switch 5500b (A)
>  no ip address
>  full-duplex
>  channel-group 3
> !
> interface FastEthernet3/1/0
>  description EtherChannel to Switch 5500b (B)
>  no ip address
>  full-duplex
>  channel-group 3
> !
> 
> Funnily enough it does not work! 

set port channel 9/21-22 mode on

the 7500 router doesn't speak PaGP, so you need to force the channel to
"on" on the Catalyst side. See also
http://www.cisco.com/warp/public/473/141.html

	oli



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