Nexus 9000 can't recognize 16GB SFP

[robad]

Hi Team,

Following on my previous thread - https://community.cisco.com/t5/data-center-switches/n9k-fc-connection-replace-from-4gb-to-16-gb-sfps-without/td-p/5093816

I want to upgrade the connection between my Nexus to Nimble from 4 GB to 16GB .

We used 4GB because some Cisco BUG [https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvm09149 ] 

I tried to replace the SFPs one by one, and didn't succeeded

Tbhe FC port goes to "init" and than "offline" again and again.

Do I need to change something in the config also ?

[don't know if it's related or not, but I have this config in my FCoE Po against the FI (per Cisco's TAC suggestion ) interface port-channel130
description ### fi-B - FCoE Uplink ###
switchport
switchport mode trunk
mtu 9216
service-policy type qos input default-fcoe-in-policy]

Thanks in advance !

[advinski]

Hi Ron,
please provide "show run int" for specific FC ports.
the provided configuration is for FCoE and not for FC native

[robad]

Thanks for your reply 

Here it is :

[advinski]

ok, actually nothing is configured
and the other side?

[robad]

The other side is Nimble Storage - HF60

And this is HPE Support Engineer's answer, regarding if our Nimble should support 16GB :

All our arrays with FC have HBA capable of 16G.

The switch you connect it to must support that speed and it will negotiate.

Your array is no different...

Name: fc1b.1

Array: work-nimble-04

Controller: A

Admin Status: online

Link Status: up

Operational Status: operational

Fabric Logged In: yes

Max Link Speed: 16G

[advinski · Accepted solution]

Hi Ron,
another possible issue is a cable type - please check what do you have there and, maybe, replace to a newer one.

[robad]

We had OM2 cables

When replacing to OM3, it worked !

Thanks @advinski  !