vmMembershipSummaryExtTable
A summary of VLAN membership of non-trunk bridge ports. This table is used for retrieving VLAN membership information for the device which supports dot1dBasePort with value greater than 2048. A row is created for a VLAN and a particular bridge port range, where at least one port in the range is assigned to this VLAN. VLAN membership can only be modified via the vmMembershipTable.