All 3550 switches are connected to the 6513 core switch, with one connection each (1Gbps).
Now I need to transfer multicast and unicast between the switches. I'm sending internet from 6513 to the other switches on vlan100, and using local network at vlan200, also having some other vlans with switches 2960. and my multicast vlan is 222.
on the core i have: ip multicast-routing no ip igmp snooping
interface Vlan222 description MULTICAST ip address 192.168.0.1 255.255.255.0 no ip igmp snooping
and on the Ge interfaces i have trunk mode to other switches. on the switches 3550: ip multicast-routing no ip igmp snooping !interface Vlan222 description MULTICAST ip address 192.168.0.7 255.255.255.0 ! interface gig 0/1 trunk vlan 222,100,300 -----------------------------------------------------
Multicast and unicast are working on all switches, but the cpu on core is 80% for some reason, when i turn the ip igmp snooping on the cpu goes down to 1% and i lose the multicast only. Also when i do ip pim sparse mode on the vlan cpu goes to 99%.
Is there a way to that and make it work normally with low cpu?
I just tried that, so i get the multicast to work, but my core switch CPU goes to 99%.
Then i removed the ip pim-sparse-dense mode from the vlans, and turn ip igmp snooping on, and the cpu goes to 1% and the multicast works. but i suppose that mcast routing don't work now, i just recieved all mcast at all switches.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...