Unmanaged switch loop prevention connected to 460-G2

[Dave_Hanna]

So we have a bunch of 460-G2's we will be replacing some enterasys C2's. Currently SpanGuard on the C2's was not enabled hence when people with an unmanaged desk switch looped 2 of the ports all hell breaks loose with Spantree.

The 460-G2's have STP enabled with BPDU-restrict and also edge-safeguard, but this does not prevent unmanaged switch loops.

How can we prevent the STP from people looping an unmanage switch connected to only 1 edge port and trashing the network?

[Dave_Hanna]

apologies, i should read what i type better.
We have C2's installed and moving to the Extreme 460-G2's.

I'll have a look at ELRP as well thanks.

[Dave_Hammers]

Maybe exspantree.py.will help you. It was developed for customers migrating from EOS.
See https://github.com/extremenetworks/EXOS_Apps/tree/master/EZ_SpanningTree for the latest.
Depending on the EXOS release, it may already be included with EXOS.

[Eric_Burke]

We utilize ELRP in our standard build and it's very reliable. Sounds like you're getting rid of the 460's though, is that correct?

[davidj_cogliane]

ELRP usually works well passing through unmanaged switches and stopping loops.