[c-nsp] 10G Xenpak 'virgin' question

Colin Whittaker colin at netech.ie
Tue Sep 9 11:19:02 EDT 2008


The Ciena is probably not doing auto negotiation.
try "speed nonegotiate" on the interface and once it sees light it
should bring the interface up.


On Tue, Sep 09, 2008 at 10:41:31AM -0400, Jeff Kell wrote:
> We're trying to light up our first 10G Xenpak link, so far without
> success, so I'm looking for a quick sanity check.
> 
> 3750G-16TD switch with an LR Xenpak [ours], trying to link to a Ciena
> [not ours] add/drop ONS.
> 
> We had some marginal power levels trying to backhaul the circuit across
> campus, so we relocated the 3750 next to the fiber ingress and trying to
> get the link up directly connected with no luck.
> 
> No link light (ever), not even a noise packet in the interface stats. 
> The interface isn't shutdown.  I've tried it P2P (no switchport) and
> trunk (switchport) and still nothing.
> 
> Is there something obvious about a 10G interface configuration that I'm
> overlooking to get the thing to "speak" ? 
> 
> Jeff
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-- 
Colin Whittaker					+353 (0)86 8211 965
http://colin.netech.ie			            colin at netech.ie


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