[c-nsp] Question about varying input queue depths

[Peter Rathlev]

On Thu, 2011-02-17 at 13:26 -0500, Chris Kane wrote:
> I've been searching for documentation that explains what sets the input
> queue. I realize on many platforms it is often 75. However, I have a
> customer with a 6513 and 6748 modules on which some interfaces have a queue
> depth of 75 and some interfaces have a queue depth of 2,000. There are no
> hold-queue commands within the configuration. So I'm wondering why some
> interfaces ended up with what appears to be a non-default depth of 2,000.

The interfaces with a depth of 2,000 are probably switchport interfaces.
The ones with a depth of 75 are "no switchport" interfaces.

You set the input queue with the "hold-queue <N> in" interface command.

I'm not sure how an input queue works on a L2 interface though. I'd
probably advise not to adjust defaults on those ports without a good
reason / TAC advice.

-- 
Peter