HP 6125G HP 6125G & 6125G/XG Blade Switches IP Multicast Configuration - Page 46

Static port configuration example, Network requirements, IGMPv2 runs on Router - configuration guide

Page 46 highlights

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 multicast group 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 gets blocked, at least 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. 35

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35
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
multicast group 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 gets blocked, at least
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.