Wireless Controller 9800 RP port

[piotrPaszk]

Hello,

I am trying to set up SSO but I struggle to activate RP ports. I have connected them via fiber to swiches in the same vlan and I do not get any link. I do not see that RP port as available port in Web Gui menu redundancy config. 

I have attached a picture. What I do wrong ?

Thanks for any help.

[omz · Accepted solution]

Hi

Suggest having a look at this guide - 

https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-8/b_c9800_wireless_controller_ha_sso_dg.html#id_89553

[x00008037]

How did you solve this one? what was the issue?

[Scott Fella]

Do you have the fiber or copper 9800? Typically you would first test with a back to back to make sure the sfp and everything is working. Then you can try a switch in between.

[x00008037]

So we have tried different optics, and fiber cables. Also tried different upstream switch and still nothing.. The links come up on the upstream switch but the WLC SFP port stays orange.

Cisco TAC have looked at it we have done pcaps etc and can see nothing..

TAC have gone into the Linux shell of the WLC to check the status of the RP port. Its up but no counters are incrementing on either WLC.. Very strange issue,

We have RMA controllers on the way :).. Lets hope we dont have the same issue.

[Marcel H.]

Hello together,

I struggled two days with this and eventually found out that I had plugged in GLC-LH-SM SFP Modules instead of GLC-LH-SMD

In the documentation only GLC-LH-SMD or GLC-SX-MMD are supported

For anyone also bumping his head against the wall, this could be pretty helpful.

Best regards,

Marcel

[MarkAnderson4]

Hey Marcel -

Thank you so much for this recommendation!  I put in that exact optic in my WLC and 4500X and things started working!

Mark