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When a port receives an IGMP report, a snooping group entry gets created. After the entry is created, multicast data streams are forwarded to the port or ports specified in the entry, as well as the multicast router within the VLAN. The Snoop Group tab allows you to view the snooping group entries and the ports to which they forward multicast data.
To display IGMP snooping groups on a VLAN:
| The IGMPSnoop dialog box opens with the Snoop Globals tab displayed. |
| The Snoop Group tab opens. |
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Vid
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Indicates the VLAN ID of the individual IGMP VLAN.
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GroupIpAddr
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Identifies the group IP address learned from the IGMP packet, on a per VLAN basis.
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MacAddr
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Identifies the MAC address corresponding to the GroupIpAddr field, on a per VLAN basis
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PortMap
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Indicates the ports that belong to the same multicast group, on a per VLAN basis. The value in the PortMap field indicates the actual number of the port.
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IpGroupReportCount
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Indicates how many report packets were received for that group address on a per VLAN basis.
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