Few IP phones disconnecting frequently connected to extreme switch

[Sai_Prasad_Rao_]

We have few IP phones connected to extreme switch , single port carries both voice and data vlan. Both voip abd data have static it's. All Ports are configured as tag for voice and untag for data. Some pc's and printers are directly connected to switch ports (not through phones) and have static IP configured from data vlan. Is there any possibility of above causing few phones to hang....?

[Paul_Russo]

Hey Sai

No issue with VoIP and data on the same port or having VoIP tagged. That is the proper config. I would move the phones to other ports, maybe ones that have phones that are connected and not seeing the issue. If you swap them and it follows the phone then that should be a key indicator. If it stays with the port then it can point to the cable.

You can also do a show port info on those ports and see if the up/down counters are going up showing a port disconnect or is it just the phones not responding.

P

[Sai_Prasad_Rao_]

Phones are on , connected 24/7. Could it be a physical cable issue or should I try to swap the phone on other port and check.

[AnonymousM]

MAC aging is happening on every port. It just depends on the end system. If some of the phones are not frequently used, they could age out. Just a guess.

[Sai_Prasad_Rao_]

All phones are connected to same switch, 4 out of 30 phones are having issues. Why is Mac aging happening on specific ports

[AnonymousM]

Did you check the FDB in case a phone hangs? Is the MAC address of the phone still learned on that port? If the phone does not send any packet for a while, the MAC maybe aged out the FDB.