HP 6125G - Static Port Configuration Example

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GE1/0/4 (D) ( 00:04:10 )
MAC group(s):
MAC group address:0100-5e01-0101
Host port(s):total 2 port.
GE1/0/3
GE1/0/4
The output shows that GigabitEthernet 1/0/3 and GigabitEthernet 1/0/4 of Switch A has joined
m u l t ic a s t g r oup 224 .1.1.1.
Static port configuration example
Network requirements
As shown in Figure 14, IGMPv2 runs on Router A, and IGMPv2 snooping runs on Switch A, Switch B, and
Switch C. Router A acts as the IGMP querier.
Host A and host C are permanent receivers of multicast group 224.1.1.1. GigabitEthernet 1/0/3 and
GigabitEthernet 1/0/5 on Switch C are required to be configured as static member ports for multicast
group 224.1.1.1 to enhance the reliability of multicast traffic transmission.
Suppose STP runs on the network. To avoid data loops, the forwarding path from Switch A to Switch C
is blocked under normal conditions, and multicast traffic flows to the receivers attached to Switch C only
along the path of Switch A—Switch B—Switch C.
Configure GigabitEthernet 1/0/3 on Switch A as a static router port, so that multicast traffic can flow to
the receivers nearly uninterruptedly along the path of Switch A—Switch C in the case that the path of
Switch A—Switch B—Switch C gets blocked.
For more information about the Spanning Tree Protocol (STP), see Layer 2—LAN Switching Configuration
Guide.
NOTE:
If no static router port is configured, when the path of Switch A—Switch B—Switch C
g
ets blocked, at leas
t
one IGMP query-response cycle must be completed before the multicast data can flow to the receivers
along the new path of Switch A—Switch C. Namely multicast delivery will be interrupted during this
process.