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  • 1.  Class of Service EZqos Configuration

    Posted 09-28-2015 09:56

    Hi Everyone,

     

    I have tried to enable CoS using the ezqos config provided on the EX 4200 switch. 

     

    I did not want to use the groups as I like the configuration to be nicely layed out. Anyway, I copied the config in using the "load merge terminal" and all looked well. 

     

    I have also done the following:

     

    set class-of-service interfaces ge-* scheduler-map ezqos-voip-sched-maps

    set class-of-service interfaces ge-* unit * classifiers dscp ezqos-dscp-classifier

    set class-of-service interfaces ge-* unit * rewrite-rules dscp default

     

    My issue is that my new Polycom VVX 410 IP phone is not using the ezqos-voice-fc forwarding class. 

     

    Using a packet capture, I can see the DSCP vaule of 46 intering on ge-0/0/30 from the phone. 

     

    The forwarding class looks to be setup correctly with the un-touched config:

     

    classifiers {
    dscp ezqos-dscp-classifier {
    import default;
    forwarding-class ezqos-voice-fc {
    loss-priority low code-points 101110;
    }
    forwarding-class ezqos-control-fc {
    loss-priority low code-points [ 110000 011000 011010 111000 ];
    }
    forwarding-class ezqos-video-fc {
    loss-priority low code-points 100010;
    }
    }
    }

     

    However, the traffic from the phone still seems to be landing in the Best Effort forwarding class. 

     

    I wondered if I am missing something or if the fact of 101110 being listed into the "dscp-default" classifier as well as the "ezqos-dscp-classifier" would cause a conflict as in the "dscp-default" classifier, it is added to the ezqos-best-effort forwarding class. 

     

    Also:

     

    Switch1# run show class-of-service interface ge-0/0/30
    Physical interface: ge-0/0/30, Index: 224
    Queues supported: 8, Queues in use: 5
    Scheduler map: ezqos-voip-sched-maps, Index: 37585
    Congestion-notification: Disabled

    Logical interface: ge-0/0/30.0, Index: 168
    Object Name Type Index
    Rewrite dscp-default dscp 31
    Classifier ezqos-dscp-classifier dscp 57624

     

     

    Any help would be very appriciated, as I thought I understood this 😞

     

    Josh 

     

     



  • 2.  RE: Class of Service EZqos Configuration

    Posted 09-28-2015 16:35

    I would also like to see a answer to this.!



  • 3.  RE: Class of Service EZqos Configuration

    Posted 09-30-2015 18:42

    Josh

     

    Try posting in JUNOS threads.

    I got help there for a ezqos issue.



  • 4.  RE: Class of Service EZqos Configuration

     
    Posted 09-30-2015 20:12
    Hi,

    When you are verifying traffic queues how are you confirming that voice traffic is in be?

    I usually apply a firewall filter to match/count on the edge (ingress) port and then start icmp ping with tos set and watch the traffic queues on the egress port. Then if the firewall filter count matches the egress counter all is well.

    Can you show some more diagnostic output? Configuration at first glance looks fine.

    Tim


  • 5.  RE: Class of Service EZqos Configuration

    Posted 10-17-2015 01:41

    Can you use the firewall filter to log and count the Phone traffic to see if it is being properly classified. That is all you have done so far based on the information you have provided. The rewrite rules will rewrite the packets. Otherwise they will be best effort.



  • 6.  RE: Class of Service EZqos Configuration
    Best Answer

    Posted 11-17-2015 06:31

    Hi All, 

     

    Just wanted to update you. 

     

    The issue was that my Trunk interfaces were LACP links (ae- interfaces) 

     

    I just needed to assign the re-write rules to ae-* unit * as well as the ge- interfaces. 

     

    Kind Regards 

     

    Josh