‎04-25-2025 07:44 AM
I tried looking up best practices on this community website, and came up with "Official content" articles (which showed nothing except the words "Official content"). I looked at various ERS manuals, and still came up quite confused.
So, what are best practices for loop prevention? I have SLPP on Vlans on my cores (VSP 8400's). Should I have something on the ERS Edge switches? Our uplinks from ERS (4800's and 4900's) edge switches to Cores are Fabric Attach, MLT's. VSP switches are all latest version 8 (I haven't moved to version 9 yet for those switches that are capable), and ERS switches are all on their latest version.
Thanks for any help.
Solved! Go to Solution.
‎04-30-2025 08:09 AM
Hello,
You didn't explicitly mentioned it, are the VSP switches configured as a SMLT cluster pairs with vIST?
If so, then the setup would be to enable SLPP globally and
On the SPBM-FA access switches enable SLPP-GUARD on the client ports.
Never configure SLPP-GUARD on the MLT uplink ports.
This setup will
hope it helps
regards
WillyHe
‎04-30-2025 08:09 AM
Hello,
You didn't explicitly mentioned it, are the VSP switches configured as a SMLT cluster pairs with vIST?
If so, then the setup would be to enable SLPP globally and
On the SPBM-FA access switches enable SLPP-GUARD on the client ports.
Never configure SLPP-GUARD on the MLT uplink ports.
This setup will
hope it helps
regards
WillyHe
‎05-01-2025 12:34 PM
Thanks so much WillyHe. My thinking was fairly close to what you suggested (based on my confused research), and it makes a lot sense. I'll go ahead and make those changes.
‎04-28-2025 04:00 AM
Hello,
Thanks for the detailed context — you're in a fairly complex and modern Avaya (now Extreme Networks) environment with VSP 8400s at the core and ERS 4800/4900 edge switches, using MLT and Fabric Attach. Loop prevention in such a network is crucial, especially because of the mixed hardware and features like Fabric Attach.
Best regard,
Kerolina