Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

GLC-LH transceiver problem

I've ordered 10 GLC-LH-SM=. I know, that on MMF Cable it runs up to 550m, with SMF up to 10km. ;-)

I try to test to SFP but I couldn't see any link coming up either with SM neither with MM fibre cables.

I also try on a working link, about 3km SMF, but with the new SFP's the link never comes up.

I'm a little frustrated. Could it be that a full serie of SFP doesn't work?

Thank for any hint or help.

2 REPLIES

Re: GLC-LH transceiver problem

Tying them on MMF will not be usefull.

They should work on your 3km SMF link though.

Can you post a "sh int" for the interfaces where the SFP's are inserted?

Might be counterfeit equipment, happens more often than you think. Verify that you have bought genuine modules from a reliable source.

regards,

Leo

New Member

Re: GLC-LH transceiver problem

Thank for your reply. It seems that from 10 GLC-LH 5 was working and to other ones was faulty. We'll open an RMA.

143
Views
0
Helpful
2
Replies