Voice problem with two WAN router connection

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Sep 10th, 2008
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hi

i have a 2811 router with two wan conecction to site central, but different routers, 7500 and 7200.

I have voice problem in one direction, the user dont lisen the other user,

the load balancing EIRGP is activated in all routers.

This maybe cause the voice problem?

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a.gooding Wed, 09/10/2008 - 14:42
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normally from my experience its always a routing issue causing this. is your gateway MGCP or H323. either way did you bind to the appropriate interface?

eljose_lol Thu, 09/11/2008 - 05:25
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i am using h323 gateway, and i think thats a summary problem with eigrp,

Marwan ALshawi Thu, 09/11/2008 - 06:21
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hi Jose


loadbalnacing and any kind of routing voice use with multiple path sometimes cause problems such as jitter because of delay varaition with data u dont feel it with voice some time packet arrive befor other and the lead to this issue


try to use one path if solved then u have to change ur routing topology


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eljose_lol Fri, 09/12/2008 - 05:33
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hi bro

thx for the reply,i thonk same, but with a route map can solve this problem? is only one way communication.

Marwan ALshawi Fri, 09/12/2008 - 06:14
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u could match any ip traffic from Voice network go to one router as next hope and use the other in case of the main one down


for exaple lets say ur voice network is 10.1.1.0/24


access-list 1 permit 10.1.1.0 0.0.0.255

access-list 1 deny any


the deny statment in the end to include only voice network in the route map matching and other traffic will be excluded


route-map voice permit 10

match ip address 1

set next-hop [first router]


route-map voice permit 20



good luck


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