So for multicast routing , the first thing you need to be aware of is "multicast flooding"......unless you turn on igmp snooping all the multcast video stream will hit all PC's whether they want it or not.
So on each interface turn on IGMP Snooping -so that the switch can detect IGMP Joins or Leaves and Map the L3 multicast address to L2 MAC address clients.
int vlan x
ip igmp
Also you need to turn on IP multicast routing
at global level "ip pimsm"
This enables Sparse mode multicast routing - which is a more controlled mode than Dense = Flood/Prune. In Sparse mdoe teh multicast router only builds state when it has clients who want to recieve traffic, rather than all the time.
sentinel-master
345 Posts
0
November 16th, 2008 11:00
So for multicast routing , the first thing you need to be aware of is "multicast flooding"......unless you turn on igmp snooping all the multcast video stream will hit all PC's whether they want it or not.
So on each interface turn on IGMP Snooping -so that the switch can detect IGMP Joins or Leaves and Map the L3 multicast address to L2 MAC address clients.
int vlan x
ip igmp
Also you need to turn on IP multicast routing
at global level "ip pimsm"
This enables Sparse mode multicast routing - which is a more controlled mode than Dense = Flood/Prune. In Sparse mdoe teh multicast router only builds state when it has clients who want to recieve traffic, rather than all the time.