Unable to understand the logs

[Sai_Prasad_Rao_]

Observing below logs on one of the core switch: 09/26/2016 17:08:29.18 MSM-A: Port=2:3: No associated STP port for STP Domain tag 900 (Rate-limited) 09/26/2016 17:02:29.17 MSM-A: Previous message repeated 30 additional times in the last 348 second(s) 09/26/2016 17:02:17.40 MSM-A: 10.1.33.100 (telnet) admin: sh configuration 09/26/2016 17:02:17.20 MSM-A: Port=2:3: No associated STP port for STP Domain tag 900 (Rate-limited) 09/26/2016 17:00:41.17 MSM-A: Previous message repeated 8 additional times in the last 84 second(s) 09/26/2016 17:00:32.89 MSM-A: Login passed for user admin through telnet (10.1.33.100) 09/26/2016 17:00:29.20 MSM-A: Port=2:3: No associated STP port for STP Domain tag 900 (Rate-limited) 09/26/2016 17:00:19.94 MSM-A: CPU utilization monitor: process thttpd consumes 99 %% CPU 09/26/2016 17:00:17.16 MSM-A: Port=2:3: No associated STP port for STP Domain tag 900 (Rate-limited) 09/26/2016 16:50:29.19 MSM-A: Previous message repeated 49 additional times in the last 576 second(s)

[Sai_Prasad_Rao_]

Hi

I have checked the Switch config which is connected to Core switch 2:3

I found stp is configured on uplink ports (53,54) as below:

configure stpd STPD-X add vlan X ports 53 pvst-plus
configure stpd STPD-Y add vlan Y ports 53 pvst-plus
configure stpd STPD-Z add vlan Z ports 53 pvst-plus
configure stpd STPD-X add vlan X ports 54 pvst-plus
configure stpd STPD-Y add vlan Y ports 54 pvst-plus
configure stpd STPD-Z add vlan Z ports 54 pvst-plus
configure stpd STPD-X tag 4000
enable stpd STPD-X
configure stpd STPD-Y tag 200
enable stpd STPD-Y
configure stpd STPD-Z tag 900
enable stpd STPD-Z

whereas on core switch port 2:3 stp is not configured.

[Henrique]

Could you please share the STP config for the unit with those logs?

Also, please share the "show stpd " to the domain 900 for both switches.

Thanks.

[Henrique]

It seems to be an STP configuration mismatch between both switches connected through port 2:3.

[Sai_Prasad_Rao_]

There are 5 vlans and stp isvenabled on those vlans, vlan 900 is one of those