Netgear XCM89UP Command Line Interface CLI User Manual Software Version 11.x - Page 554
set igmp report-suppression, set igmp header-validation
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M5300, M6100, and M7100 Series ProSAFE Managed Switches set igmp report-suppression Use this command to suppress the IGMP reports on a given VLAN ID. In order to optimize the number of reports traversing the network with no added benefits, a Report Suppression mechanism is implemented. When more than one client responds to an MGMD query for the same Multicast Group address within the max-response-time, only the first response is forwarded to the query and others are suppressed at the switch. Default Format Mode Disabled set igmp report-suppression vlan-id VLAN Config Parameter vlan-id Description A valid VLAN ID. Range is 1 to 4093. Command example: (NETGEAR Switch) #vlan database (NETGEAR Switch) (Vlan)#set igmp report-suppression ? Enter VLAN ID. (NETGEAR Switch) (Vlan)#set igmp report-suppression 1 no set igmp report-suppression Use this command to return the system to the default. Format Mode no set igmp report-suppression VLAN Config set igmp header-validation This command enables IGMP IP header validation. If IGMP IP header validation is enabled, three fields, TTL (Time To Live), ToS (Type of Service), and Router Alert options, are checked. The actual validated fields depend on the IGMP version. The TTL field is validated in all the versions (IGMPv1, IGMPv2, and IGMPv3). The Router Alert field is validated in IGMPv2 and IGMPv3. The ToS field is validated only in IGMP version3. Default Format Mode Enabled set igmp header-validation Global Config Switching Commands 554