Spanning tree blocking port

[tcknudson]

log file showing going back to blocked mode

430 stp blocking log.PNG (54.13 KiB) Viewed 5063 times

showing blocked port

430 stp blocking.PNG (70.66 KiB) Viewed 5064 times

lost connectivity to one 430ap, when I shut off stp on that port, i regain connectivity, when I enable I lose it.

[mike99]

If you use wireless link, make sure you have WDS enabled else it can happen.

[Buganah]

hi
we have the same issue with 3 switches out of 8 wd-12-250-AC
we are sure that there is no loops but the certain ports keep flapping

[sirhc]

hi
we have the same issue with 3 switches out of 8 wd-12-250-AC
we are sure that there is no loops but the certain ports keep flapping

Always specify firmware version but when ever you experience an issue upgrade to the latest firmware which is v1.3.9rc14 and see if the issue remains. Then if the issue remains then detail it out.

v1.3.8 is FINAL no fixes will be done for it but v1.3.9 is in development.

[Buganah]

thnx for the advice
the version 1.3.8
this is a production environment so we don't have much room for try and specially with RC and not even final and i don't have much time to test in the lab also this is one switch out of 8 which is doing this so you can't really replicate the issue

for now we disabled STP because we are only running it for loop protection and instead we have enabled loop protection on all switches for now

[sirhc]

thnx for the advice
the version 1.3.8
this is a production environment so we don't have much room for try and specially with RC and not even final and i don't have much time to test in the lab also this is one switch out of 8 which is doing this so you can't really replicate the issue

for now we disabled STP because we are only running it for loop protection and instead we have enabled loop protection on all switches for now

Personally I would have installed v1.3.9rc14 which is all but going FINAL and has fixed many bugs found in v1.3.8

You need to understand Loop Protection as that a leaking network device even on your customer side can cause a loop protection event to occur shutting down a port for 90 deconds.

[Buganah]

Hi,,
i didn't really know the mechanism you implemented it but i know the concept and i work with vlans only inside my network as all access vlans are untagged on the access points , inside my network it is all Netonix switches and soon we are going to switch from a large flat network to segmented