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4506 Switch compatibility with GLC-GE-100FX SFP

We have a 4506 switch with IOS 15.1. This switch doesn't support our GLC-GE-100FX modules for our 7962 VoIP phones. An interface status shows "media unrecognized".

Working with this switch, what options do we have to make those SFP's work with this switch? Thank you for any assistance with this question.

5 Replies 5

Mark Sparling
Enthusiast
Enthusiast

What line card & SUP are you using in your Catalyst 4506?

WS-X4748-SFP-E
WS-X4724-SFP-E
WS-X4712-SFP-E

GLC-GE-100FX

15.2(1)E

WS-X4640-CSFP-E
WS-X4624-SFP-E
WS-X4612-SFP-E

GLC-GE-100FX

15.1(1)SG

Looks like WS-X4448-GB-SFP

Version looks 15.0(IR)SGS

You are right those modules aren't supported on that line card.  You can try the unsupported modules command but it might not work and then your only options is new line card or GLC-SX-MM= modules.  Quick question the 7962 IP phone has copper port or do you have the CIS version that is fiber?  The unsupported command for third party modules in Cisco switches is 

type this first - no errdisable detect cause gbic-invalid 
Then type this second - service unsupported-transceiver
Remove SFP module, shutdown/no shutdown the port, insert back the SFP module.

Please let me know if this helped you.