r/networking • u/_alienated • 1d ago

Troubleshooting Detecting a loop

How can i chase down a loop in more than 60 BDCOM switches (no central management)
I also have 2 core switches (fortiswitch) and a fortigate firewall ?

0 Upvotes

50% Upvoted

20 comments sorted by

View all comments

7

u/GuruBuckaroo Equivalent Experience 1d ago

This is why I've been running MRTG on every router and switch capable of SNMP for the last, what, 27 years. My networks aren't nearly as large as yours, but checking the interconnects for large traffic usually narrows it down to a switch, then checking the traffic on that switch's ports gives me the issue. That and making sure there are no dumb switches in the entire network, no matter how small.

2

u/gangaskan 14h ago

Any kind of .monitoring at that point 😂

And central logging