It looks like they have their own transceivers & labeled with their name, They are offering these as new GLC-T copper 1gige transceivers. You can see them in this photo ( bottom transceiver is from NHR ) Http://www.networkhardware.com/
But their's a twist, they didn't work in our AS1K , nor our ASR9K routers, until we executed some commands to bypass the eeprom checksum code for the pid.
Here's how you can do it;
( ASR9K IOS-Xr version 4.2.3 )
( transceiver permit pid all "ignore the load-interval in this output )
( ASR1K IOS-XE 15.1.3 )
( service unsupported-transceiver Beaware of the warnning banner that cisco outputs to your screen )
The ASR1K is shows them in the show inv details, but they are not working as of yet. We are still investigating why & I will post an update once we get a resolution.
NOTE: These GLC-Ts did work in every model of switch that we had, and in our WS-X6724-sfp linecard for the 6500 series.
Keep these thoughts in mind;
- it's best to always use the mfg'er supported SFP/SFP+ transceiver in your you gear
- cisco TAC support, might not support your 3rd-party transceivers
- cisco TAC might not RMA 3rd party transceivers, & if they believe they are the culprit
- other problems might come up or develop
- TAC is known to always ask for you to install a "cisco brand" transceiver during trouble shooting if they find out you have a non-cisco transceiver
- it best to keep a few cisco brand SFPs around
In my own experience & with using the lesser priced transceivers ( copper or optic );
- transition network seems to have a wide choice of 1gige transceivers, & that works in various cisco switches & routers
- prolabs provides some very good transceivers
Freelance Network / Security Engineer
kfelix ----a---t---socpuppets ---d---o---t---com
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