All MIBs › CISCO-VLAN-MEMBERSHIP-MIB › vmMembershipSummaryMember2kPorts
vmMembershipSummaryMember2kPorts
Module: CISCO-VLAN-MEMBERSHIP-MIB
OID (symbolic): CISCO-VLAN-MEMBERSHIP-MIB::vmMembershipSummaryMember2kPorts
OID (numeric): 1.3.6.1.4.1.9.9.68.1.2.1.1.3
Node type: OBJECT-TYPE
Type: CiscoPortList
Access: read-only
Description: The set of the device's member ports that belong to the VLAN. It has the VLAN membership information of up to 2048 ports with the port number from 1 to 2048.
Each octet within the value of this object specifies a set of eight ports, with the first octet specifying ports 1 through 8, the second octet specifying ports 9 through 16, etc. Within each octet, the most significant bit represents the lowest numbered port, and the least significant bit represents the highest numbered port. Thus, each port of the VLAN is represented by a single bit within the value of this object. If that bit has a value of '1' then that port is included in the set of ports; the port is not included if its bit has a value of '0'.
A port number is the value of dot1dBasePort for the port in the BRIDGE-MIB (RFC 1493).
What is vmMembershipSummaryMember2kPorts?
This CiscoPortList value is a bitmap covering VLAN membership for up to 2048 ports (numbered 1 to 2048), with each octet's most significant bit representing the lowest port number in that byte's range. It lets an administrator managing a large chassis-based switch confirm VLAN membership across thousands of ports in a single read rather than walking a per-port table. For example, checking whether port 2000 is in the VLAN means inspecting the appropriate bit within the 250th octet of this string.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.68.1.2.1.1.3 snmpwalk -v2c -c public <target> CISCO-VLAN-MEMBERSHIP-MIB::vmMembershipSummaryMember2kPorts
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.68.1.2.1.1.3.1 snmpget -v2c -c public <target> CISCO-VLAN-MEMBERSHIP-MIB::vmMembershipSummaryMember2kPorts.1
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OID Breakdown
Upper-level ancestors (8 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.9 | cisco | CAT2600-MIB |
| 1.3.6.1.4.1.9.9 | ciscoMgmt | CISCO-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.9.68 | ciscoVlanMembershipMIB | CISCO-VLAN-MEMBERSHIP-MIB |
| 1.3.6.1.4.1.9.9.68.1 | ciscoVlanMembershipMIBObjects | CISCO-VLAN-MEMBERSHIP-MIB |
| 1.3.6.1.4.1.9.9.68.1.2 | vmMembership | CISCO-VLAN-MEMBERSHIP-MIB |
| 1.3.6.1.4.1.9.9.68.1.2.1 | vmMembershipSummaryTable | CISCO-VLAN-MEMBERSHIP-MIB |
| 1.3.6.1.4.1.9.9.68.1.2.1.1 | vmMembershipSummaryEntry | CISCO-VLAN-MEMBERSHIP-MIB |
| 1.3.6.1.4.1.9.9.68.1.2.1.1.3 | vmMembershipSummaryMember2kPorts | CISCO-VLAN-MEMBERSHIP-MIB |