Nexus 5500 VoIP cos 3 and FCoE

Question

Hi
I have a requirment to do QoS for a DC that includes some VoIP as well FCoE with CNAs in the servers. I want to use COS 3 for the VoIP signalling and drop it in the same input and output quues to the servers as FCoE.
so we have
class-map type qos class-fcoe
class-map type queuing class-fcoe
  match qos-group 1
which is the default for FCoE and I have 50% bandwidth assoicated with it.
policy-map type queuing
     class type queuing class-fcoe
       bandwidth percent 50
     class type queing someother class etc
The issue is the "class-fcoe" is a default class and there doesnt seem to be anywhere I can edit it to add the VOIP control traffic to the same class or can I just add it here:
class-map type queuing match any class-fcoe
  match qos-group 1
  match cos 3
Thanks
Pat

Answer 1

Hmm
From the UCS 8 SRND
For instance, voice signaling traffic with L3 DSCP  value of CS3 is mapped to L2 CoS value of 3 by Nexus 1000V. All Fibre  Channel over Ethernet (FCoE) traffic is marked with L2 CoS value of 3 by  Cisco UCS. When voice signaling and FCoE traffic enter the Cisco  UCS 6100 Fabric Interconnect Switch, both will carry a CoS value of 3.  In this situation voice signaling traffic will share queues and  scheduling with the Fibre Channel priority class and will be given  lossless behavior. (Fibre Channel priority class for CoS 3 in the  UCS 6100 Fabric Interconnect Switch does not imply that the class cannot  be shared with other types of traffic.)
This seems ti pmply you can run Call SIgnalling COS 3 in the same queueu as FCOE COS 3. I kow its talking about a 6100 fabric switch but thats very similar to a 5500.
Could I not do something like:
class-map type qos match-all voice-signal-global
   match-cos 3
policy-map type qos classify-global
   class voice-signal-global
      set qos-group 1
   class class-fcoe
      set qos-group 1
But then I cant see how to link this where we set the queuing bandwidth percentages as this uses the "class-fcoe"
policy-map type queuing global-fcoe-queuing-in
   class type queuing class-fcoe
      bandwidth percent 50
Could I create a class to replace "class-fcoe" and jsut match on qos-group 1 to define whats in it ?
Regards
Pat