Netgear XCM8806 Chassis Hardware Installation Guide - Page 1167

NETGEAR 8800 Chassis Switch CLI Manual Syntax Description query_interval query_response_interval last_member_query_interval robustness Specifies the interval (in seconds) between general queries. Specifies the maximum query response time (in seconds). Specifies the maximum group-specific query response time (in seconds). Specifies the degree of robustness for the network. Default • query interval-125 seconds • query response interval-10 seconds • last member query interval-1 second • robustness-2 Usage Guidelines Timers are based on RFC2236. Specify the following: • query interval-The amount of time, in seconds, the system waits between sending out general queries. The range is 1 to 429,496,729 seconds. • query response interval-The maximum response time inserted into the periodic general queries. The range is 1 to 25 seconds. • last member query interval-The maximum response time inserted into a group-specific query sent in response to a leave group message. The range is 1 to 25 seconds. • robustness-The degree of robustness of the network. The range is 2 to 7. This parameter allows tuning for the expected packet loss on a link. If a link is expected to have packet loss, this parameter can be increased. • The group timeout is defined by the formula: group_timeout = (query_interval x robustness) + query_response_interval, according to RFC 2236. You can explicitly define the host timeout using the configure igmp snooping timer {vr } command. The effective host_timeout is the lesser value of the group_timeout and the configured host_timeout. Example The following command configures the IGMP timers: configure igmp 100 5 1 3 configure igmp snooping filters configure igmp snooping filters [per-port | per-vlan] Description Selects the type of IGMP snooping filters that are installed. Chapter 26. IP Multicast Commands | 1167