CME-MIB :: smHardwareVpdHardwareRevisionString

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCME-MIBsmHardwareVpdHardwareRevisionString

smHardwareVpdHardwareRevisionString

Module: CME-MIB

OID (symbolic): CME-MIB::smHardwareVpdHardwareRevisionString

OID (numeric): 1.3.6.1.4.1.2.3.51.2.2.21.6.1.1.20

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-only

Description: Switch module hardware VPD hardware revision in string format. For consistent results, view as a table and not as individual entries. If a hardware revision is programmed in the OEM VPD area for this component, then this MIB object should be used.

What is smHardwareVpdHardwareRevisionString?

This OCTET STRING gives the hardware revision of the switch/I-O module (SM) installed in the chassis written out as text, and the MIB says it should be used instead of the plain-integer HardwareRevision object whenever the OEM VPD area has this string programmed. An admin relies on the string form to avoid ambiguity, since a numeric revision code alone can't capture vendor-specific revision letters or suffixes. For example, smHardwareVpdHardwareRevisionString reveals the exact revision text of the installed switch module when deciding whether it supports a feature that shipped only from a certain board revision onward.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2.3.51.2.2.21.6.1.1.20
snmpwalk -v2c -c public <target> CME-MIB::smHardwareVpdHardwareRevisionString

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.2.3.51.2.2.21.6.1.1.20.1
snmpget -v2c -c public <target> CME-MIB::smHardwareVpdHardwareRevisionString.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> smHardwareVpdHardwareRevisionString.1

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OID Breakdown

Upper-level ancestors (15 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.2ibmBLADE-MIB
1.3.6.1.4.1.2.3ibmAgentsBLADE-MIB
1.3.6.1.4.1.2.3.51netfinitySupportProcessorAgentBLADE-MIB
1.3.6.1.4.1.2.3.51.2bladeCenterSnmpMIBBLADE-MIB
1.3.6.1.4.1.2.3.51.2.2monitorsBLADE-MIB
1.3.6.1.4.1.2.3.51.2.2.21vpdInformationBLADE-MIB
1.3.6.1.4.1.2.3.51.2.2.21.6smHardwareVpdBLADE-MIB
1.3.6.1.4.1.2.3.51.2.2.21.6.1smHardwareVpdTableBLADE-MIB
1.3.6.1.4.1.2.3.51.2.2.21.6.1.1smHardwareVpdEntryBLADE-MIB
Numeric OIDNameModule
1.3.6.1.4.1.2.3.51.2.2.21.6.1.1.20smHardwareVpdHardwareRevisionStringCME-MIB