R3303-HP HSR6800 Routers IP Multicast Command Reference

318
Default command level
2: System level
Parameters
all: The first all specifies the IPv6 multicast groups created based on the configured MLD SSM mappings
on all interfaces, and the second all specifies all IPv6 multicast groups 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 address in the range of FFxy::/16, where x and y
represent any hexadecimal numbers from 0 to F.
ipv6-source-address: Specifies a multicast source by its IPv6 address.
prefix-length: Specifies the address prefix length. The default value is 128. For a multicast source address,
the value range for this argument is 0 to 128. For a multicast group address, the value range for this
argument is 8 to 128.
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
Related commands
display mld ssm-mapping group
robust-count (MLD view)
Use robust-count to configure the MLD querier's robustness variable globally.
Use undo robust-count to restore the default.
Syntax
robust-count robust-value
undo robust-count
Default
The MLD querier's robustness variable is 2.
Views
MLD view
Default command level
2: System level
Parameters
robust-value: Specifies an MLD querier's robustness variable in the range of 2 to 5.
Usage guidelines
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.