Hi,
I have a issue with broadcast storms that has been an issue for a long time, thought i’d ask your opinion.
I have a switch, on that switch i have a management vlan, lets call it Vlan100 its a /24 subnet.
Connected to my switch are a variety of routers, 800’s, 1900’s etc and each of these routers also has that management vlan, again a /24
Sometimes what happens is, one if those routers stars flapping, could be for any number of reasons.
When the flapping happens, the storm begins. I start getting loads of traffic heading out towards my end devices, i know that it is Vlan 100 that is causing this, i also see the increased traffic in one way only, i see it outwards from the switch to the routers.
I can make the issue go away with
clear arp-cache interface vlan 100
(sometimes a couple of times is required)
I spent days/weeks working with storm control, but i could never catch the storm, so perhaps broadcasts is a bad terminology to use.
One solution i am considering, is changing the timings on the mac-address aging time, or the arp-table timing, as i have had similar issues with other devices.
Your thought comments would be appreciated