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    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

    Published: 2014-08-19