On Wed, 2010-08-18 at 16:25 -0400, P.A wrote: > Peter, I think I may of found the issue, looks like incoming queue > based on DSCP trust will only work for some lan cards > > "Congestion avoidance—If you configure an Ethernet LAN port to trust > CoS or DSCP, QoS classifies the traffic on the basis of its Layer 2 > CoS value or its Layer 3 DSCP value and assigns it to an ingress queue > to provide congestion avoidance. Layer 3 DSCP-based queue mapping is > available only on WS-X6708-10GE ports." > > I'm using, WS-X6548-RJ-45
You're right about that, you need "mls qos trust cos" on all ports on the same ASIC. I tried to address that with: > And 1) precludes you from using DSCP trust on other interfaces on the > same ASIC. That may or may not be a problem for you. If you absolutely need DSCP trust and cannot use either CoS trust or move the DSCP-trust-needing ports to another ASIC, then it seems you cannot alter the receive queues. :-| You _might_ be able to simulate DSCP trust with an extensive input service-policy, along the lines of: class-map DSCP0 match ip dscp 0 ! class-map DSCP1 match ip dscp 1 ! ... policy-map DSCP_TRUST class DSCP0 set ip dscp 0 ! class DSCP1 set ip dscp 1 ! ... ! It would look terribly clumsy though. And as you alluded to, CoS trust only makes sense on trunk ports (they carry the 1p-bits) even though you can configure access/routed interfaces to "trust cos". -- Peter _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
