all,

this is an odd issue i'm having in turning up a new circuit, and hoping for 
some input / ideas --

the link between the EX and the Cat6500 is provided by a 3rd party provider (I 
think via DWDM - Sienna and Infinera gear).  Both the EX and the Cat6500 GigE 
interfaces are configured as routed interfaces.

I don't know enough about how DWDM gear operates, but if I set my side to Auto, 
while the far-side Cat6500 is fixed 1g/full, I successfully complete auto 
negotiation and negotiate to gig/full.  I don't know how transparent the 
transport equipment is, if i'm negotiating with their equipment, or something 
else . . . anyone have any ideas there?  The provider says they're basically 
just providing light signal transport, and should be auto negotiating with the 
far side Cat6500 (which i'm clearly not).

If the far side (Cat6500) sets his side also to Auto, both sides of the links 
go down.  If we both hard-set to gig/full, we both show link up, but no 
connectivity occurs.  We have checked and double checked the interface configs 
and IP reachability should be occurring.  At this time I still believe its 
something wrong with the transport equipment / configuration of the circuit, 
but I don't really have a way to prove it right now.  I was thinking about 
trying Ethernet OAM LFM, and if that comes up then we at least know L2 is 
working, and that we've clearly overlooked something on the IP side; and if it 
does not come up, then to me that points to the transport provider (or some 
very odd software bug somewhere).

Does anyone have some recommendations on troubleshooting this?  I'm at my wits 
end trying to bring this circuit online.

Thanks,

Will
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