From: Nick (ccieaz@googlemail.com)
Date: Tue Mar 24 2009 - 19:40:29 ART
Hi Joe,
I think it means to configure desirable on both ends of the link. By doing
this neither end would be 'auto' which would negotiate with the desirable
side.
Nick
2009/3/24 Joe Astorino <joe_astorino@comcast.net>
> Hey guys,
>
> I have a task here that is confusing me regarding etherchannels. The task
> is exactly stated as below:
>
> -- Configure all switches for L2 EtherChannels on ports 19-24. Use
> channels
> 1-3 consecutively
> -- Use PagP except between SW3-SW4. PagP should not be negotiated
> -- The SW3-SW4 EC should be configured but not negotiated
>
> So my confusion is with the 2nd point here. "Use PagP except between
> SW3-SW4" -- OK easy enough. I can use mode on or LACP on that 1 link.
> The
> confusion here is "PagP should not be negotiated". I don't get this. So
> far as I understand with PagP you can have "desirable" or "auto". In
> desirable mode, it negotiates and in auto mode it passively negotiates. If
> I set to "on" the output of my "show etherchannel summary" shows no
> protocol, even though I have seen some documentation that says "on" is a
> mode of both PagP and LACP.
>
> How can I have PagP and not negotiate at the same time?
>
> Any help much appreciated!
>
> Regards,
>
> - Joe A
>
>
> "He not busy being born is busy dying" -- Dylan
>
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