Huawei Quidway S9300 Configuration Manual - Multicast page 64

2 IGMP Configuration
Context
The Router-Alert option requires the S9300 to send the received IGMP messages that have not
been added to IGMP groups to the upper layer protocol. By default, the S9300 sends IGMP
messages containing the Router-Alert option, but does not check the Router-Alert option in the
received messages. That is, the S9300 processes all the received IGMP messages, regardless
whether the messages contain the Router-Alert option. If require-router-alert is configured,
check this option.
The Router-Alert option can be configured globally or on an interface.
l
l
Procedure
l
l
2-10
The global configuration is valid on each interface.
The configuration on an interface is valid only for the specific interface. The configuration
on an interface takes precedence over the global configuration. If the Router-Alert option
is not configured on the interface, the global configuration is used.
Configuring IGMP message options globally
1. Run:
system-view
The system view is displayed.
2. Run:
igmp
The IGMP view is displayed.
3. Run:
require-router-alert
The S9300 is configured to ignore the IGMP messages that do not contain the Router-
Alert option.
4. Run:
send-router-alert
The S9300 is configured to add the Router-Alert option to the IGMP message header.
NOTE
After you run the send-router-alert command, information about the Router-Alert option will
not be displayed when you view the current configuration. To view information about the
Router-Alert option, run the undo send-router-alert command first.
Configuring IGMP message options for the interface
1. Run:
system-view
The system view is displayed.
2. Run:
interface interface-type interface-number
The interface view is displayed.
The S9300 communicates with hosts through this interface. On the S9300, VLANIF
interfaces and loopback interfaces support IGMP.
3. Run:
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Quidway S9300 Terabit Routing Switch
Configuration Guide - Multicast
Issue 01 (2009-07-28)