Configuring IGMP Settings for an Interface

When you start IGMP on an interface, it operates with the default settings. You can, however, modify:

• The method that the router uses to remove hosts from multicast groups (IGMPv2 and IGMPv3 interfaces only).
  host1:boston(config-if)#ip igmp immediate-leave
• The query time interval for the querier sends group membership messages.
  host1:boston(config-if)#ip igmp last-member-query-interval 90
• The time that a non-querier waits for queries from the current querier before sending query messages to assume responsibility of querier.
  host1:boston(config-if)#ip igmp querier-timeout 200
• The time that a new querier waits before sending query messages after it assumes responsibility from another querier.
  host1:boston(config-if)#ip igmp query-interval 100
• The time that a host can take to reply to a query (maximum response time).
  host1:boston(config-if)#ip igmp query-max-response-time 120
• The number of times that the router sends each IGMP message from this interface.
  host1:boston(config-if)#ip igmp robustness 2

Related Documentation

• Enabling IGMP on an Interface
• Configuring Multicast Groups for IGMP
• ip igmp immediate-leave
• ip igmp last-member-query-interval
• ip igmp querier-timeout
• ip igmp query-interval
• ip igmp query-max-response-time
• ip igmp robustness