For the sake of completeness on this thread I was able to use the LH transceiver just fine after entering the command "speed nonegotiate" on the interface.
I will be interested to hear what the provider has to say about this now, even though prior to making my config change I double checked with them again on their point about "LX to LH are not compatible" to make sure they didn't hear "LH to SX" or something like that. Thanks for the tips everyone. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Justin Krejci Sent: Monday, June 15, 2009 7:10 PM To: 'Dale Shaw' Cc: [email protected] Subject: Re: [c-nsp] LX vs LH Transceivers Dale, Thanks for the tip but this particular case I was using the sfp-only interface so there is not even an option for configuring media-type. router(config)#int g5/1 router(config-if)#me? % Unrecognized command router(config-if)#int g5/2 router(config-if)#me? media-type router(config-if)#me Also I did not try the "speed nonegotiate" option, I will definitely have to try that. Thanks! -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Dale Shaw Sent: Monday, June 15, 2009 6:57 PM To: Justin Krejci Cc: [email protected] Subject: Re: [c-nsp] LX vs LH Transceivers Hi Justin, On Tue, Jun 16, 2009 at 9:08 AM, Justin Krejci<[email protected]> wrote: > We are running into some performance issues on the 7200 when under load so > we have a 6509 sup720 3bxl. The sup720 has one sfp port and one sfp/rj45 > combo port. We have one GLC-LH-SM SFP transceiver installed into the > sfp-only port but when cutting over the above mentioned link from the 7200 > to the 6509 we get no eth link at all. Sorry if this is offensively obvious, but did your interface config include "media-type sfp"? The only other trick I've found with 1000BASE-LX recently was between a WS-X6724-SFP line card and an Alcatel 1662 -- the link wouldn't come up without "speed nonegotiate". Good luck. Cheers, Dale _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
