R3721-F3210-F3171-HP High-End Firewalls Network Management Command Reference-6PW101
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interface-type interface-number: Specifies an interface by its type and number.
group-address: Specifies a multicast group by its IP address, in the range of 224.0.0.0 to
239.255.255.255.
source-address: Specifies a multicast source by its IP address.
mask: Specifies the mask of the multicast group address or multicast source address, defaulted to
255.255.255.255.
mask-length: Specifies the mask length of the multicast group address or multicast source address. For a
multicast group address, the value ranges from 4 to 32. For a multicast source address, the value ranges
from 0 to 32. The default value is 32 for both cases.
Description
Use reset igmp ssm-mapping group to clear multicast group information created based on the
configured IGMP SSM mappings.
Related commands: display igmp ssm-mapping group.
Examples
# Clear all multicast group information created based on the configured IGMP SSM mappings on all
interfaces on the public network.
<Sysname> reset igmp ssm-mapping group all
robust-count (IGMP view)
Syntax
robust-count robust-value
undo robust-count
View
Public network IGMP view
Default level
2: System level
Parameters
robust-value: IGMP querier's robustness variable, with an effective range of 2 to 5.
Description
Use robust-count to configure the IGMP querier's robustness variable globally.
Use undo robust-count to restore the default.
By default, the IGMP querier's robustness variable is 2.
The IGMP querier's robustness variable defines the maximum number of attempts for transmitting IGMP
general queries, group-specific queries or group-and-source-specific queries in case of packet loss due to
network problems. A greater value of the robustness variable makes the IGMP querier "more robust", but
results in a longer multicast group timeout time.
The IGMP querier's robustness variable determines the following values:
• The default number of general queries that the IGMPv1/v2/v3 querier sends on startup
• The number of IGMP group-specific queries that the IGMPv2 querier sends after receiving an IGMP
leave message.