[c-nsp] 10/100/1000 copper SFP in ASR9k / autoneg

Phil Mayers p.mayers at imperial.ac.uk
Wed Oct 19 04:35:54 EDT 2011


This is just curiosity; it's not even strictly our problem.

We host a POP (physical space, power cooling, a bit of telco liason) for 
our upstream, who have an ASR9k on site that we and a lot of other 
people connect into.

In providing assistance for a couple of other sites connected to that 
same router, it's been mentioned that the tri-rate copper SFPs don't 
support autoneg?

Does anyone have the faintest idea what Cisco are playing at here? I'm 
amazed and astonished that a product released this millenium won't 
support autoneg. Madness!

I've got to know - surely there must be a good reason?

Baffled,
Phil


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