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

[Marian Ďurkovič]

On Fri, 18 Dec 2009 10:16:08 +1000, Brad Henshaw wrote
> 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.

Flowcontrol doesn't need to be QOS-aware in this scenario.

On the switch side, it's enough if it supports plain RX flowcontrol
i.e. "flowcontrol receive [desired|on]". Then the wireless link can
send pause frames to slow down the switch port automatically to the
real bandwidth and output buffering / QOS configuration on the switch
port is applied as expected.


     With kind regards,

         M.