Multicast
H3C Low-End Ethernet Switches Configuration Examples
Chapter 2 Multicast Protocol Configuration
Examples
2-20
Received error IGMP packet(s) number:0.
Sent IGMP specific query packet(s) number:0.
Switch C received only IGMP general queries from the querier.
# View multicast group information on Switch C.
<Switch C> display igmp-snooping group
Total 0 IP Group(s).
Total 0 MAC Group(s).
Vlan(id):100.
Total 0 IP Group(s).
Total 0 MAC Group(s).
Router port(s):Ethernet1/0/1
As shown above, no forwarding entries have been created on Switch C. The switch
must flood multicast data in the VLAN to allow the multicast data to flow to the receivers
downstream; therefore, do not enable the function of dropping unknown multicast
packets on Switch C.
2.4 MSDP Configuration Examples
2.4.1 Network Requirements
To enable communication between receivers and multicast sources in different PIM-SM
domains, use MSDP to establish MSDP peering relationships between the RPs of
different PIM-SM domains, so that these RPs can forward SA messages between
PIM-SM domains to share multicast source information.
2.4.2 Configuration Plan
z
Two ISPs maintain their respective ASs, AS 100 and AS 200. OSPF runs within
each AS, and BGP is deployed for interoperability between the two ASs.
z
PIM-SM 1 belongs to AS 100. PIM-SM 2 and PIM-SM 3 belong to AS 200.
z
Both PIM-SM domains have 0 or 1 multicast source and at least one receiver.
OSPF runs within each domain for unicast routing.
z
The respective loopback interfaces, Loopback 0, of Switch C, Switch D and Switch
F are configured as C-BSRs and C-RPs of the respective PIM-SM domains.
z
Establish MSDP peering relationship between Switch C and Switch D through
EBGP. Establish MSDP peering relationship between Switch D and Switch F
through IBGP.
