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New Member

6921 Registration issue in Juniper

Hi Team,

We are facing the registration issue for 6921 Phones in Juniper ex3300 switch [ software version 12.3.R7.7].

Registration flapping continuously. Other model Phones like 7821,7942 are working fine without any issues.

Tested with firmware 9.3.1.3 & 9.2.2.6 but the result is same in both the firmware version.

Thanks in Advance......

2 REPLIES
New Member

I would suggest spanning the

I would suggest spanning the PC port of the phone and running a Wireshark to see what is happening with the phone's registration traffic, especially around an TCP re-transmissions. 

New Member

Hi Tim,Thanks for your

Hi Tim,

Thanks for your response. We have taken the packet capture & seen the ICMP failure to call manager primary and secondary server.

We currently checking in networking perspective. But still the confusion 7942 in the same switch is working fine without any issues.

Thanks in Advance......

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