robust-count (IGMP Snooping)
Syntax
robust-count number;
Hierarchy Level
[edit bridge-domains bridge-domain-name protocols igmp-snooping interface interface-name], [edit bridge-domains bridge-domain-name protocols igmp-snooping vlan vlan-id interface interface-name], [edit routing-instances routing-instance-name bridge-domains bridge-domain-name protocols igmp-snooping interface interface-name], [edit routing-instances routing-instance-name bridge-domains bridge-domain-name protocols igmp-snooping vlan vlan-id interface interface-name], [edit protocols igmp-snooping vlan vlan-name]
Description
Configure the number of queries a device sends before removing a multicast group from the multicast forwarding table. We recommend that the robust count be set to the same value on all multicast routers and switches in the VLAN.
This option provides fine-tuning to allow for expected packet loss on a subnet. You can wait more intervals if subnet packet loss is high and IGMP report messages might be lost.
Use the query-interval, query-last-member-interval, or query-response-interval statements in the same hierarchy
to configure interval lengths.
Options
number—Number of intervals the switch waits before timing out a multicast group.
Range: 2 through 10
Default: 2
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 8.5.