QoS (?) for Cisco 1721 Router

Humper

I have Vonage VoIP and I would like to setup QoS (I think this is what it is) on my router. Basically I want to ensure that there is 100+Kbps set aside (ALWAYS) and make sure the VOIP packets are set to the highest priority.

Could anyone point me in some sort of direction on how to do this? I searched at ciscos website and found QoS Device Manager but it looks like I need to install it on a server???

Thanks alot in advance!

EdTheLad

ModemHumper wrote:

I have Vonage VoIP and I would like to setup QoS (I think this is what it is) on my router. Basically I want to ensure that there is 100+Kbps set aside (ALWAYS) and make sure the VOIP packets are set to the highest priority.

Could anyone point me in some sort of direction on how to do this? I searched at ciscos website and found QoS Device Manager but it looks like I need to install it on a server???

Thanks alot in advance!

Use class based qos.

Class-map Vontage_Data
match ip dscp ?? ( depends what value you phone is marking in the ip packet,you will have to check this maybe its ef)
Class-map Vontage_signalling
match ip dscp ?? ( same as above but this is for the signalling, less priority, maybe af31)

Policy-map Vontage
Class Vontage_Data
priority 100
Class Vontage_signalling
bandwidth 64
Class class-default

Then on the interface use define the policy-map using
Service-prioriy output Vontage.

Anyway this is just to put you on the right track,maybe check out the "Auto qos" feature.

Humper

Thanks ed, now if the router Im using is running NAT overload, and my phone has a private address how could a person making a call to me initiate the call if I am behind the router...Could I use a DMZ server?


I also found this on the Cisco Website if anyone else is interested (Class based QoS)...TY ED!!!!!

http://www.cisco.com/en/US/products/ps6558/products_white_paper09186a0080087a84.shtml

BubbaJ

Also check out ip rtp priority.

Remember, any classification and marking of the traffic that you do will be completely ignored by your ISP.