[c-nsp] 7200 Queuing

[Ryan West]

Hi,

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of Florent PARATTE (G)
> Sent: Monday, November 09, 2009 6:55 AM
> 
> In the "show interface e2/0" command output, the queuing strategy is
> FIFO.
> 
> In the "show queue interface e2/0" command output, it is written this
> command is not used with FIFO strategy.
> 
> I made a lot of tests, the priority doesn't depend of neither the Layer
> 4
> header (UDP ou TCP, ports), neither the CoS field. So I imagine it may
> have
> a WFQ algorithm as queuing, but.
> 

FIFO is the default for your Ethernet interfaces.  You should look into LLQ to prioritize your voice traffic and allocate some bandwidth for signaling on the 7200.  Once you get your MQC policy setup, you can enable fair-queue or WRED for your remaining traffic.  If you know that you haven't enabled QoS on your switches yet, the tags should carry to your router.  If you have enabled QoS, you'll need to trust the markings from your voice equipment and routers.  You can verify this quickly by matching what you're expecting to see on the inbound interface of your router.

HTH,

-ryan