[c-nsp] spanning-tree optimize bpdu transmission

Dale W. Carder dwcarder at doit.wisc.edu
Thu Sep 13 12:54:24 EDT 2007


Looking through my notes, in 2004 I saw this show up in
a config somewhere (can't recall if it was a 6500 or a dsbu
switch), and it was ack'd as CSCeb13403, a cosmetic bug.

Cheers,
Dale

On Sep 10, 2007, at 12:38 PM, Richard Stern wrote:

> The command "spanning-tree optimize bpdu transmission" is not  
> documented
> at all, yet it is referenced in numerous examples in the Cisco config
> guides.
>
>> From a posting several years ago, it was mentioned that it sends out
> BPDUs at the interrupt level vs. the CPU.  Default is enabled, yet in
> the examples (typically w/ Cat 29xx, 37xx) it is disabled.
>
> Should we infer from this that smaller switches can't deal w/this?
> Since this is a global command, does this infer that if I have a 6500
> connected to other 6500s as well as smaller switches I need to disable
> it?
>
> Any insights are appreciated.
>
> Can somebody at Cisco arrange to get this included in the docs?
>
> Thanks,
>
> Richard
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