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The RBP view is displayed.
Step 3
Run:
service-type
multicast
A multicast RBS is enabled.
NOTE
After the
undo service-type multicast
command is run, the system stops backing up IGMP messages, and
the IGMP messages that the system has backed up are not affected.
----End
11.6.3 (Optional) Enabling IGMP Message Duplication
IGMP message duplication can be enabled to allow the master and slave routers to back up
information for each other. If a terminal is dual-homed to the master and slave routers, IGMP
message duplication can be disabled, reducing system resource consumption.
Context
In the multicast two-node hot backup scenario, a DHCP STB is connected to the master and
slave routers over links in a smart link group or an E-Trunk or over VLL PWs. If a network-side
fault occurs, the standby link becomes active and takes over traffic. The access network does
not detect the fault and still sends IGMP messages to the master router along the faulty link,
causing packet loss. The
dhcp-stb igmp-copy
command can be used to enable IGMP message
duplication so that IGMP messages can reach the slave router.
If a DHCP STB is dual-homed to the master and slave routers, both routers can receive the IGMP
messages, which means that IGMP message duplication is not required. The
undo dhcp-stb
igmp-copy
command can be used to disable IGMP message duplication, reducing system
resource consumption.
A PPPoE terminal also sends IGMP messages and the messages arrive only at a single router.
The master and slave routers are able to duplicate PPPoE terminal's IGMP messages and send
them to each other by default. There is no need to run the
dhcp-stb igmp-copy
or
undo dhcp-
stb igmp-copy
command.
Procedure
Step 1
Run:
system-view
The system view is displayed.
Step 2
Run:
remote-backup-profile
profile-name
The RBP view is displayed.
Step 3
Run:
undo dhcp-stb igmp-copy
IGMP message duplication is disabled.
HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
11 Multi-node Backup Configuration
Issue 02 (2014-09-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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