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Session Manager Entity Link Down

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dignoffo

IS-IT--Management
Apr 22, 2009
198
US
We recently updated our Cisco switches, routers and firewalls and I discovered that the Entity Link monitoring between our ASM-1 and ASM-2 servers are down to CM with a 408 Request Timeout. I tried to deny and and accept new service on the links but no result.

I can ping between the CM and ASM servers so it does not appear to be a layer 3 issue.

Any suggestions?
 
SIP entity monitoring is done using SIP OPTIONS messaging over the port(s) \defined in the SMGR(usually 5060 or 5061). ICMP (ping) uses a totally different port so pinging between the ASM's isn't a good test. Have your network team make sure the proper ports are open.
 
Wanebo,

Thank you. I will reach out to our network team as I am suspicious some changes were made.

 
Wanebo,

I have worked with my network co-worker and we have ruled out either a network or certificate issue using Wireshark.

Is our next step a reboot of the SM servers?

 
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