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connection to extreme

i have a 3750 w/ lx gbic connecting to extreme gig switch via single-mode fiber. extreme shows link-light, but i don't see link on my side (3750). are there any gotchas when connecting to extreme? when i connect the same port to a 6509, i'm fine. could there be a duplex/speed issue?

thanks.

2 REPLIES
Hall of Fame Super Silver

Re: connection to extreme

Is the Extreme port status ("show ports n:n info det") admin state enabled active, link state ready? If not, you need to enable the port.

We always eliminate autonegotiation interoperability issues by forcing the appropriate duplex and speed settings.

VIP Purple

Re: connection to extreme

Hello,

I have run into a similar issue lately with the GBIC on the 3750, the GBICs on the 3750s would not come up. Eventually I tried a shut/no shut, unplugged the other end and then entered into the interface, set the interface to speed/nonegotiate, plugged it back in and it came up. You might want to try this as well, I have unfortunately no explanation for the observed behaviour...

Regards,

GP

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