Hello,
Sorry if this is confusing.
I have 39 adtran switches on my campus. I believe I have an STP issue going on and has been going on for a couple months. I currently can't access most of the switches via http or ssh. They also don't ping. But the network is working fine. If I disconnect a switch that I am unable to access from the LAN, I can access the switch just fine from a laptop connected to the switch. I have 2 fiber switches and a 1638p that I am able to access normally. I noticed on the 1638p that STP is blocking 2 uplink SFP ports connected to other switches.
Core_ActivChassis_Vlan_Router#show spanning-tree blockedports
Blocked Interfaces List
------------------------------------
xgiga-swx 1/2/1
xgiga-swx 2/2/2
Number of blocked ports (segments) in the system : 2
I have been searching for a loop forever and can't find it yet. I assume I do have a loop somewhere since it's blocking these 2 ports.
