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Cisco - QoS for VoIP

Discussion in 'Networking' started by Mithrilhall, Nov 13, 2007.

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  1. Mithrilhall

    Mithrilhall Thread Starter

    Joined:
    Mar 28, 2001
    Messages:
    781
    We're having some issues with VoIP quality at many sites. We've tried ajusting out configurations but and it seems to have helped a little but we're still having quality issues (the remote site can't hear us or we can't hear them).

    Any suggestions on what I can do to increase the quality?

    This is our latest config:
    Code:
    !
    class-map match-all VOICE
     match ip dscp ef
    class-map match-any CALL-SETUP
     match ip dscp af31
     match ip dscp cs3
    class-map match-any INTERNETWORK-CONTROL
     match ip dscp cs6
     match access-group name IKE
    class-map match-all TRANSACTIONAL-DATA
     match ip dscp af21
    !
    !
    policy-map LLQ-from-Branch
     class CALL-SETUP
      bandwidth percent 10
     class TRANSACTIONAL-DATA
      bandwidth percent 22
     class INTERNETWORK-CONTROL
      bandwidth percent 5
     class VOICE
      priority percent 25
     class class-default
      fair-queue
    policy-map Shaper
     class class-default
      shape average 384000 3840 0
      service-policy LLQ-from-Branch
    !
    
    
    This was our original config:
    Code:
    !
    class-map match-all VOICE
     match ip dscp ef
    class-map match-any CALL-SETUP
     match ip dscp af31
     match ip dscp cs3
    class-map match-any INTERNETWORK-CONTROL
     match ip dscp cs6
     match access-group name IKE
    class-map match-all TRANSACTIONAL-DATA
     match ip dscp af21
    !
    !
    policy-map LLQ-from-Branch
     class CALL-SETUP
      bandwidth percent 6
     class TRANSACTIONAL-DATA
      bandwidth percent 22
     class INTERNETWORK-CONTROL
      bandwidth percent 5
     class VOICE
      priority 256
     class class-default
      fair-queue
    policy-map Shaper
     class class-default
      shape average 384000 3840 0
      service-policy LLQ-from-Branch
    !
    
     
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