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denial event 2011: IP FURQ-No Q931 msg rcvd

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Davicat

Systems Engineer
Apr 19, 2018
23
ES
Hello,

For some reason, all phones in a location suddenly stopped working,in theory here has been no changes either in the avaya CM and the network.

I have been reading some documents even from avaya and in every post, it's the network fault for one reason or for another.

I'm mainly following this post of avaya but I haven't managed to see where the problem lays, as my network coworkers are saying that the problem is on the avaya server.

This is the trace of the registration process:

time data
switch [10.128.X.X]:1719
08:44:05 rcv RRQ ext 1049361XXX
endpt [10.234.X.X]:49302
switch [10.128.X.X]:1719
08:44:05 snd RCF ext 1049361XXX
endpt [10.234.X.X]:49302
switch [10.128.X.X]:1719
08:44:05 TCP connected (ne)
endpt [10.234.X.X]:1720
switch [10.128.X.X]:61441
08:45:05 denial event 2011: IP FURQ-No Q931 msg rcvd
endpt 10.234.X.X data0:0x9368


Anyone has any suggestion on what it could be?

Many thanks
 
The problem was MTU at provider side, set up at 1380
 
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