11.10.11 Example for Configuring Multicast Two-node Hot Backup
This section provides an example for configuring multicast two-node hot backup, including
networking requirements, configuration roadmap, configuration procedure, and configuration
files.
Networking Requirements
NOTE
The X1 and X2 models of NE80E/40Es do not support RUI; therefore, they do not support multicast two-
node hot backup.
IPTV applications become popular and IPTV services are transmitted in real time. Users are
sensitive to IPTV service stability, which imposes high reliability requirements on operator
networks. Multicast two-node backup, in addition to BRAS user backup, is required on the
master and slave routers.
On the network as shown in
, a PPPoE terminal is connected to BRAS1 and BRAS2
through a switch. The two BRASs run VRRP to determine the master and backup status. Both
BRASs are configured so that users get online through the master BRAS. Multicast two-node
hot backup is configured on both BRASs. This feature allows users to smoothly restore IPTV
services without re-dialing up or changing a channel if the master BRAS fails.
Figure 11-15
Multicast two-node hot backup
BRAS2
P
BRAS1
VRRP+BFD
Internet
Loopback0
Loopback0
User
Network
PE
GE2/1/2
GE2/1/0
GE2/0/0
GE2/0/2
Backup
channel
Protection
tunnel
Device Name
Interface Name
IP Address
BRAS1
GE 2/1/0.2
10.0.1.1/24
GE 2/1/2
10.1.1.6/24
Loopback0
22.22.22.22/32
BRAS2
GE 2/0/0.2
10.0.1.2/24
GE 2/0/2
10.1.1.7/24
Loopback0
88.88.88.88/32
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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