[c-nsp] High CPU issues on 6513 with LACP

Chris Evans chrisccnpspam2 at gmail.com
Tue Jun 28 16:18:54 EDT 2011


Upgrade code. That will fix it. Known bug from olden days.
On Jun 28, 2011 3:54 PM, "Christopher J. Wargaski" <wargo1 at gmail.com> wrote:
> Greetings--
>
> I recently installed a stack of HP (H3C) switches in a closet and
> connected them with an LACP link to a 6513 running 12.2(17d)SXB11a. (Yes,
> that is circa 2006, don't ask. At least the beast wasn't running in hybrid
> mode!) The 6513 physical LAG ports were configured with "mode active".
>
> When using static LAG on the HP switches the 6513's CPU utilization
> climbed so high that packets were dropping and a "sh run int po2" would
not
> complete. When I moved to using dynamic LAG on the HP switches, the uplink
> worked just fine. Anyone heard of such an issue specific to static LAG, or
> perhaps an issues with a sub-optimal version of IOS.
>
> cjw
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