3com MSR 20-20 참조 매뉴얼

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C
HAPTER
 92: MLD C
ONFIGURATION
 C
OMMANDS
Example
# Set the MLD version to MLDv2 on Ethernet 1/0.
<Sysname> system-view
[Sysname] interface ethernet 1/0
[Sysname-Ethernet1/0] mld version 2 
require-router-alert (MLD view)
Syntax
require-router-alert
undo require-router-alert
View
MLD view
Parameter
None
Description
Use the require-router-alert command to globally configure the device to 
discard MLD messages without the Router-Alert option.
Use the undo require-router-alert command to restore the default 
configuration.
By default, the device does not check the Router-Alert option, that is, it forwards 
all received MLD messages to the upper layer protocol for processing.
Related command:
Example
# Globally configure the device to discard MLD messages without the Router-Alert 
option.
<Sysname> system-view
[Sysname] mld
[Sysname-mld] require-router-alert 
reset mld group
Syntax
reset mld group { all | interface interface-type interface-number { all | 
ipv6-group-address [ prefix-length ] [ ipv6-source-address [ prefix-length ] ] } }
View
User view
Parameter
all: Clears all MLD forwarding entries.
interface interface-type interface-number: Clears the MLD forwarding entries on 
the specified interface.
ipv6-group-address: IPv6 address of the specified multicast group, in the range of 
FFxy::/16, where x and y represent any hexadecimal number ranging from 0 to F.
ipv6-source-address: IPv6 address of the specified multicast source.