[c-nsp] Simple src/dst IP QoS

[Ray Davis]

Hi,

A customer with a 4.6 Mbit SHDSL line has a remote voip proxy - and gets drops & jitter when putting load on the line.  Instead of trying to identify voip traffic by protocol and/or ef bits, I tried via the voip proxy IP address.  Is there any reason why this wouldn't work in IOS (1841, 12.4)?

    class-map match-any VoipTraffic
     match access-group name VoipHost

    ip access-list extended VoipHost
     permit ip any host 123.456.123.456
     permit ip host 123.456.123.456 any
 
    policy-map VoipPolicy
     class VoipTraffic
        priority percent 50
     class class-default
        fair-queue
 
    interface FastEthernet0/0
     description Inside Customer LAN-1 (linknet to ASA firewall)
     service-policy output VoipPolicy
 
    interface Dialer1
     description pppoe multilink Dialer (SHDSL line)
     bandwidth 4608
     service-policy output VoipPolicy
 

The LAC on the other end has something similar ...

    class-map match-any VoipServersTraffic
     match access-group name VoipServers

    ip access-list extended VoipServers
     permit ip any host 123.456.123.456
     permit ip host 123.456.123.456 any
     permit ip any host 100.200.300.400
     permit ip host 100.200.300.400 any
     permit ip any host 321.1.2.3
     permit ip host 321.1.2.3 any
 
    policy-map VoipServersPolicy
     class VoipServersTraffic
      priority percent 50
     class class-default
      fair-queue
 
    interface Virtual-Template2
     service-policy output VoipServersPolicy

    interface FastEthernet0/0
     description NAP local ethernet 
     service-policy output VoipServersPolicy
 
If so, then any suggestions?  The customer still get drops when the line is saturated with other traffic.  Perhaps a different "priority" type?  or something totally different?

Thanks,
Ray