[c-nsp] Egress QoS on FE links with less than 100Mbps speeds

[Brad Henshaw]

Lobo wrote: 

> Wow thanks Daniel that did the trick on the 3750 platform!  Here's a
> sample config in case anyone ever needs it:
> interface FastEthernet1/0/23
>  srr-queue bandwidth limit 80

Glad to hear that worked. Be aware that bandwidth limiting on these
platforms is not an exact science - you'll always need to test to ensure
you're getting what you expect - sometimes you may need to tweak the
SRR-Queue buffer allocations and thresholds especially if traffic is
bursty.

The same goes for implementation of flow control. (with regard to the
testing requirement, not the buffering)

Flow control comes with its own set of challenges however such as varied
support across vendors and models and the fact that it's almost never
QoS-aware in the kind of edge switches you're using.

Regards,
Brad