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circuit turn up - provider sees link as up,up - our side is down,down

We have a ME3400E installed - we are trying to connect to an ISP to provide internet access for a customer - when the fiber crossconnect was installed - the provider sees the circuit as up,up on their end, we see it as down, down.  We had a physical loop installed at our equipment facing the provider and they saw the loop - and if I do a shut on the interface, they see it go down & then back up when I do a no shut.  We are using a 1000Base -LX/LH SFP.  On the provider side they have a media converter to change from 100MB Ethernet to single mode fiber. We have checked the light levels - we are transmitting @ -4.66 and receiving @ -14.56 - both are within specs.  When we had them put a loop towards us - instead of seeing up,up(looped) there was something else in the parenthesis (err-disable) or something like that - I know it started with err-.

Thanks,

Julie

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Gold

circuit turn up - provider sees link as up,up - our side is down

We are using a 1000Base -LX/LH SFP.  On the provider side they have a media converter to change from 100MB Ethernet to single mode fiber.

Your provider is 100BaseFx and you have a 1000BaseLX.  So you need GLC-FE-100LX.

3 REPLIES
Hall of Fame Super Gold

circuit turn up - provider sees link as up,up - our side is down

We are using a 1000Base -LX/LH SFP.  On the provider side they have a media converter to change from 100MB Ethernet to single mode fiber.

Your provider is 100BaseFx and you have a 1000BaseLX.  So you need GLC-FE-100LX.

New Member

circuit turn up - provider sees link as up,up - our side is down

Thanks - you were a lot quicker than the Cisco Support person we were working with.  It was actually the tech from the company that hosts our equipment that said that was probably the issue - we've been troubleshooting this for a few days now. The Cisco tech did ask to see if they could change to a GB port, but he didn't say we could use a different SFP module.  We are new to this . . . and obviously have a lot to learn!

Hall of Fame Super Gold

circuit turn up - provider sees link as up,up - our side is down

Thanks for the ratings Julie.

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