A few weeks back I posted asking a question about this, but in packet tracer. Tonight things in my class got a little crazy on actual hardware. I am aware that HRSP has to send hello packets to the other core device(s) and that should really be about it. Like the other devices shouldn't receive the packets from the core devices, in this case 2 3560 switches. We tried to create an ACL to prevent traffic getting to our Access layer, but instead we created 200,000 packets a second. HSRP is effective, but we were wondering how to stop it spamming the rest of our network with hello multicast packets. We are using older hardware, so some commands now do not exist on them.
I truly appreciate any and all advice on this situation.
Hardware: 2940, 2960, 3560, 3650, 2901
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