R3721-F3210-F3171-HP High-End Firewalls Network Management Command Reference-6PW101

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Parameters
all: The first all specifies to clear IPv6 multicast group information created based on the configured MLD
SSM mappings on all interfaces, and the second all specifies to clear all IPv6 multicast group information
created based on the configured MLD SSM mappings..
interface-type interface-number: Specifies an interface by its type and number.
ipv6-group-address: Specifies an IPv6 multicast group by its IPv6 address, in the form of FFxy::/16,
where x and y represent any hexadecimal number ranging from 0 to F.
ipv6-source-address: Specifies a multicast source by its IPv6 address.
prefix-length: Prefix length of the multicast source or multicast group address. For a multicast source
address, this argument has an effective value range of 0 to 128. For a multicast group address, it has an
effective value range of 8 to 128. The system default is 128 in both cases.
Description
Use reset mld ssm-mapping group to clear IPv6 multicast group information created based on the
configured MLD SSM mappings.
Related commands: display mld ssm-mapping group.
Examples
# Clear all IPv6 multicast group information created based on the configured MLD SSM mappings on all
interfaces.
<Sysname> reset mld ssm-mapping group all
robust-count (MLD view)
Syntax
robust-count robust-value
undo robust-count
View
MLD view
Default level
2: System level
Parameters
robust-value: MLD querier's robustness variable, with an effective range of 2 to 5.
Description
Use robust-count to configure the MLD querier's robustness variable globally.
Use undo robust-count to restore the default.
By default, the MLD querier's robustness variable is 2.
The MLD querier's robustness variable defines the maximum number of attempts for transmitting MLD
general queries, multicast-address-specific queries, or multicast-address-and-source-specific queries in
case of packet loss due to network problems. A greater value of the robustness variable makes the MLD
querier "more robust", but results in a longer IPv6 multicast group timeout time.
The MLD querier's robustness variable determines the following values:
• The default number of MLD general queries that the MLDv1/v2 querier sends on startup.