If a multicast forwarding table needs to contain more than 4096 entries, run this command to
optimize the multicast forwarding table before enabling IP multicast routing.
Step 3 Run:
multicast routing-enable
IP multicast routing is enabled.
By default, the IP multicast routing function is disabled on an S7700
----End
4.3.3 Enabling the IGMP Function
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface interface-type interface-number
The interface view is displayed.
On the S7700, VLANIF interfaces, and loopback interfaces support IGMP.
Step 3 Run:
igmp enable
The IGMP function is enabled.
By default, the IGMP function is disabled on an interface.
----End
4.3.4 (Optional) Specifying the IGMP Version
Context
CAUTION
Make sure that all the interfaces on S7700s are configured with IGMP of the same version on
one network segment. By default, IGMPv2 is adopted.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 4 IGMP Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
72
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