All MIBs › RADLAN-CDP-MIB › rlCdpSecondaryCachePortId
rlCdpSecondaryCachePortId
Module: RADLAN-CDP-MIB
OID (symbolic): RADLAN-CDP-MIB::rlCdpSecondaryCachePortId
OID (numeric): 1.3.6.1.4.1.89.137.12.1.12
Node type: OBJECT-TYPE
Type: DisplayString
Access: read-only
Description: The remote device's Port-ID prefix, as reported in the most recent CDP message. The zero-length string indicates that no Port-ID TLV was reported in the most recent CDP message.
What is rlCdpSecondaryCachePortId?
This read-only string reports the Port-ID prefix of the neighboring device's connected port as learned from its most recent CDP message, with an empty string meaning no Port-ID TLV was received. Admins use it, alongside the neighbor's Device-ID, to know exactly which port on the remote device this link connects to, which is essential for building an accurate topology map. For example, rlCdpSecondaryCachePortId showing 'GigabitEthernet0/24' tells the admin exactly which port on the neighboring switch this local port is cabled to.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.89.137.12.1.12 snmpwalk -v2c -c public <target> RADLAN-CDP-MIB::rlCdpSecondaryCachePortId
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.89.137.12.1.12.1 snmpget -v2c -c public <target> RADLAN-CDP-MIB::rlCdpSecondaryCachePortId.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 |
| 1.3.6.1.4.1.89 | rnd | Dell-MIB |
| 1.3.6.1.4.1.89.137 | rlCdp | Dell-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.89.137.12 | rlCdpSecondaryCacheTable | RADLAN-CDP-MIB |
| 1.3.6.1.4.1.89.137.12.1 | rlCdpSecondaryCacheEntry | RADLAN-CDP-MIB |
| 1.3.6.1.4.1.89.137.12.1.12 | rlCdpSecondaryCachePortId | RADLAN-CDP-MIB |