[c-nsp] LX vs LH Transceivers

[Dale Shaw]

Hi Justin,

On Tue, Jun 16, 2009 at 9:08 AM, Justin Krejci<jkrejci at usinternet.com> 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