R3303-HP 6600/HSR6600 Routers IP Multicast Configuration Guide

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Router port(s):total 1 port.
GE2/0/1 (D) ( 00:01:30 )
IP group(s):the following ip group(s) match to one mac group.
IP group address:224.1.1.1
(0.0.0.0, 224.1.1.1):
Attribute: Host Port
Host port(s):total 2 port.
GE2/0/3 (D) ( 00:03:23 )
GE2/0/4 (D) ( 00:04:10 )
MAC group(s):
MAC group address:0100-5e01-0101
Host port(s):total 2 port.
GE2/0/3
GE2/0/4
The output shows that GigabitEthernet 2/0/3 and GigabitEthernet 2/0/4 on Router B have
joined the multicast group 224.1.1.1.
Static port configuration example
Network requirements
As shown in Figure 15, IGMPv2 runs on Router A, and IGMPv2 snooping runs on Router B, Router C, and
Router D, with Router A acting as the IGMP querier. Router B, Router C, and Router D are the
6600/HSR6600 routers.
Host A and host C are permanent receivers of multicast group 224.1.1.1. GigabitEthernet 2/0/3 and
GigabitEthernet 2/0/5 on Router D should be configured as static member ports for multicast group
224.1.1.1 to enhance the reliability of multicast traffic transmission.
Suppose the STP runs on the network. To avoid data loops, the forwarding path from Router B to Router
D is blocked under normal conditions, and multicast traffic flows to the receivers attached to Router D
only along the path of Router B—Router C—Router D. For more information about STP, see Layer 2—LAN
Switching Configuration Guide.
Configure GigabitEthernet 2/0/3 on Router B as a static router port, so that multicast traffic can flow to
the receivers nearly uninterruptedly along the path of Router B—Router D in the case that the path of
Router B—Router C—Router D is blocked.
NOTE:
If no static router port is configured, multicast transmission is interrupted for a while after the path of Router B—Router
C—Router D is blocked. The reason is that at least one IGMP query/response exchange is required before the new
path can forward multicast packets.