Hi
I have a customer who has some sip opensource pbx with softphones and the LAN is cisco. The customer asked me to mark the packets in the LAN so the ISP can make the quality of service in the wan
So i did the next:
First i did this (dont think that was necesary but i did anyway)
(config)#mls qos map cos-dscp 0 8 16 26 32 46 48 56
Then for all the ports who has a pc with a softphone connected to the lan i did this:
CAT2960(config)#ip access list extended SIP_VOICE
CAT2960(config-ext-nacl)# permit udp any any range 10000 20000
CAT2960(config-ext-nacl)#
CAT2960(config-ext-nacl)#ip access list extended SIP_SIGNALING
CAT2960(config-ext-nacl)# permit udp any any eq 4569
CAT2960(config-ext-nacl)# permit udp any any eq 5036
CAT2960(config-ext-nacl)# permit udp any any eq 5060
CAT2960(config-ext-nacl)# permit udp any any eq 5061
CAT2960(config-ext-nacl)# permit udp any any eq 5082
CAT2960(config)#class-map match-all SIP_VOICE
CAT2960(config-cmap)# match access-group name SIP_VOICE
CAT2960(config-cmap)#class-map match-all SIP_SIGNALING
CAT2960(config-cmap)# match access-group name SIP_SIGNALING
CAT2960(config-cmap)#exit
CAT2960(config)#policy-map SIP_SOFTPHONES
CAT2960(config-pmap)#class SIP_VOICE
CAT2960(config-pmap-c)# set ip dscp 46! Softphone VoIP marcado a DSCP EF
CAT2960(config-pmap-c)#class SIP_SIGNALING
CAT2960(config-pmap-c)# set ip dscp 24! Senalizacion marcada a DSCP CS3
CAT2960(config-pmap-c)#class class-default
CAT2960(config-pmap-c)# set ip dscp 0
CAT2960(config)#interface GigabitEthernet0/1
CAT2960(config-if)# service-policy input SIP_SOFTPHONES
I apply the policy in all ports who has a PC with a softphone.
Finally I applies the commando auto qos voip trust to all the switches connectted to other cisco switches or routers and that's it
Now im going to ask to the service provider that watches the voice marked with dscp 46 and the signaling with dscp 24.
The question would be if you think that domething is missing or if it is ok.
Thank you
J.
