D-Link 3350SR Reference Manual - Page 217
>|robustness_variable <value 1, 65535>|max_response_time <sec 1
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DES-3350SR Layer 3 Fast Ethernet Switch User's Guide config igmp_snooping querier Purpose Syntax Description Parameters Used to configure the time in seconds between general query transmissions, the maximum time in seconds to wait for reports from members, the permitted packet loss that guarantees IGMP snooping. config igmp_snooping querier [|all] {query_interval |max_response_time |robustness_variable |last_member_query_interval |state [enabled|disabled] This command configures IGMP snooping querier. − The name of the VLAN for which IGMP snooping querier is to be configured. query_interval − Specifies the amount of time in seconds between general query transmissions. The default setting is 125 seconds. max_response_time − Specifies the maximum time in seconds to wait for reports from members. The default setting is 10 seconds. robustness_variable − Provides fine-tuning to allow for expected packet loss on a subnet. The value of the robustness variable is used in calculating the following IGMP message intervals: • Group member interval-Amount of time that must pass before a multicast router decides there are no 217
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