About rlcole

rlcole · 06-24-2019

Hi, I have a C9500-12Q-E that I'm trying to connect to a C2960X-48FPD using GLC-SX-MM's. The 9500 is running 16.9.3 and the 2960 is running 15.2(6)E1. To use the GLC I have the QSFP to SFP converters install (CVR-QSFP-SFP10G) and I know these work ...

rlcole · 06-28-2019

Solved! The solution is to add "speed nonegotiate" to the interface configuration on the 2960X's end. A quick cast to TAC found the solution. I should have caught that and tried it, live and learn.

rlcole · 06-25-2019

Thanks for confirming what I was seeing and thinking in the release notes.This has got me baffled... because on further testing, the 9500 talks fine to a 3560-8 with a SX SFP in it, but... so does the 2960X. It's really a communications issue betwe...

rlcole · 06-25-2019

Do you know if this is a change from 16.8.x? The release notes for 16.8 specifically states that it's compatible with the 9500-12Q: Release Notes for Cisco Catalyst 9500 Series Switches, Cisco IOS XE Fuji 16.8.x I had to move off of 16.8 due to a b...

rlcole · 06-24-2019

We use the 1G SFP's in most of our 2960X's with no problem. Where the 9500 is destined to go currently has 2960Xs connected 1G back to a 3750G. The 2960 is also correctly identifying the SFP, as is the 9500. So both sides know what it is, I just have...

Member Since	‎11-25-2014 11:49 AM
Date Last Visited	‎07-19-2019 12:42 PM
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C9500-12Q connecting to C2960X with GLC-SX-MM

Re: C9500-12Q connecting to C2960X with GLC-SX-MM

Re: C9500-12Q connecting to C2960X with GLC-SX-MM

Re: C9500-12Q connecting to C2960X with GLC-SX-MM

Re: C9500-12Q connecting to C2960X with GLC-SX-MM