08-02-2017 09:51 AM
We have a 711GE ONT coming off our OLTG-4E, GPON. Connected to this is a Mitel 6768i SIP phone. For some reason, the phone loses connectivity sporatically and recovers after about 20 to 30 minutes. I contacted Mitel and they gave me the correct firmware, which has now been upgraded. The problem still happening. I later began to ping the IP that the phone was pulling. Then, I decided to put a continuous ping on it, so that I could see when it went out. Waited all day, phone never lost connectivity. Decided to stop the continous ping, the phone lost connectivity soon after. Since I do not have access to our DHCP server, I am trying to eliminate calix products all together before I bring it to our IT Dept attention. Anyone have any suggestions??
08-04-2017 06:51 PM
Since this is so quite easily reproducible, I would recommend packet capturing between the ONT and phone using an Ethernet switch with port mirroring or a copper tap.
What are your ARP and MAC address table timers on your upstream router?
2 weeks ago
It seems our IT dept has their ARP/MAC timers set to 8 hours. Calix timer on our VR is set to 65535. This problem is only happening to this connection. I have other SIP phones with the same set up and cannot duplicate anywhere else. Already checked all physical connections as well.