connecting a non-Cisco unmanaged switch to the Phone PC port
We have clients who have asked about connecting both Cisco Catalyst and/or non-cisco unmanaged switches to the Phone PC (ethernet) port, and then connecting other devices to the switches. Will this configuration work, what would be the limitations, and most important will Cisco TAC this type of topology and connection.
Re: connecting a non-Cisco unmanaged switch to the Phone PC port
This is definitively not supported. The main limitation will be the phone's CAM table is not intended to track this many associations. I believe it has an internal limit of 32 addresses but I can't find this document at the moment.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
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