Configuration Example - Dell PowerConnect B-FCXs Configuration Manual

25
IP multicast protocols and IGMP snooping on the same device
If there are two sources for a single group, where one source sends traffic into a VLAN with IGMP
snooping enabled, while the other source sends traffic to a PIM enabled Layer 3 interface, a client
for the group in the same VLAN as the first source will only receive traffic from that source. It will
not receive traffic from the second source connected to the Layer 3 interface. Similarly, if there is
another IP interface with a Layer 3 client or PIM/DVMRP neighbor that requests traffic for the same
group, it will only receive traffic from the second source and not the first.

Configuration example

Figure 124
FIGURE 124
IGMP Snooping
Client 1
780
and Figure 125 show an example IGMP snooping and PIM forwarding configuration.
Example 1: IGMP Snooping and PIM forwarding
Server 1
"multicast active" Vlan
Vlan A
Physical
Vlan B
(with VE)
Device
(DUT)
port
"ip pim"
Interfaces
PIM-DM
Neighbor
PowerConnect B-Series FCX Configuration Guide
Server 2
PIM
Forwarding
Client 2
53-1002266-01