Cisco disabled 1gig support on 9400-X-SUP2 starting with 17.9.1!

[andrewnetworkguy80]

Works fine in 17.8.1 and below then they arbitrarily made a change to behavior of the hardware in version 17.9.1. This is a terrible business practice and obviously an attempt to grab more profit even though really Cisco trying to make money off SFPs and linecards??? Pretty sure Cisco's last quarter revenue was pretty good. What their marketing/engineering team probably failed to realize is that this creates real issues for customers with 1 gig circuits, and older fiber that doesn't support the distance with available 10 gig optics.

Our team to mitigate this issue is having to potentially procure SFP-10G-LRM and swap SUP1 from our HQ building where our fiber supports the distances. If you run into this issue as well, please comment and help the complaint to Cisco product management and engineering. 

[Leo Laohoo]

Why use 17.9.1 and not, say, 17.9.3 or 17.9.4?

Next, move that link to a port where the adjacent ports are not being used.  

[andrewnetworkguy80]

Your response is irrelevant it's all ports and all release after mentioned release. 

[rod-farmer]

Seems like a minor bug?  TAC confirmed this is the case?

[andrewnetworkguy80]

It's not a bug Cisco disabled 1 gig support on these supervisor engines after running into engineering issues. 

[rikdrt1]

i ran into this problem last year, and Cisco said they would correct that with the new IOS upgrades.  of course, we just bought a few last month and same thing -- i cant run the older 1G SFPs - not supported.   this one is running  17.09.04.    this blows because I believed their excuse and now I would have to buy Sup1 cards or find one to swap somewhere. 

[Leo Laohoo]

@rikdrt1 

Use 3rd party optics because non-Cisco branded optics do not have many of the Cisco limitation when/where/how to use the optics.