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3750X... 1G and 10G in same NM-10G?

mikearama
Level 1
Level 1

Yeah, that's pretty much it.

But to elaborate, we have a few 5-switch stacks, with a 10gb uplink in switches 1 and 5 connecting back to a pair of 6506's... one in T1/1/2, the other in T5/1/2.  The NM's are C3KX-NM-10G's, which provide 4 ports, the descriptions of which are G1, G2/TE1, G3, and G4/TE2.  So far, I'm only using the TE's as uplinks.

I now need to connect another switch (3750-TS) to one of the stacks.  It's a fair distance away, so fiber is required.  I put a 1gb sfp into G1 in switch-1, expecting that, since the only other thing in the NM is the 10Gb uplink is G4/TE2, this should work fine.  However, the 1Gb port came up, while the 10Gb port went down.

I can find nothing to support why this happened.  Am I to assume that I get either four 1Gb ports?  OR two 10Gb ports?  but not a mix?  Preciate any links.

Thanks,

Mike

1 Reply 1

Leo Laohoo
Hall of Fame
Hall of Fame

You can have 4 x SFP or 2 x SFP+ or in combination.

Check this link:  https://supportforums.cisco.com/message/3237282#3237282

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