All MIBs › CISCOSB-CDP-MIB › rlCdpSecondaryCacheMacAddress
rlCdpSecondaryCacheMacAddress
Module: CISCOSB-CDP-MIB
OID (symbolic): CISCOSB-CDP-MIB::rlCdpSecondaryCacheMacAddress
OID (numeric): 1.3.6.1.4.1.9.6.1.101.137.12.1.3
Node type: OBJECT-TYPE
Type: MacAddress
Access: read-only
Description: The MAC address of the neighbor.
What is rlCdpSecondaryCacheMacAddress?
This read-only MacAddress is the MAC address of a neighbor stored in the device's secondary CDP cache, used when the main cache is full or for additional neighbor tracking. An admin reads it to identify a specific secondary-cache neighbor at the hardware address level. For example, an admin investigating an overflow of CDP neighbors on a busy port would check this field to identify exactly which device's MAC address landed in the secondary cache.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.6.1.101.137.12.1.3 snmpwalk -v2c -c public <target> CISCOSB-CDP-MIB::rlCdpSecondaryCacheMacAddress
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.6.1.101.137.12.1.3.1 snmpget -v2c -c public <target> CISCOSB-CDP-MIB::rlCdpSecondaryCacheMacAddress.1
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> rlCdpSecondaryCacheMacAddress.1
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OID Breakdown
Upper-level ancestors (10 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 |
| 1.3.6.1.4.1.9.6 | otherEnterprises | CISCO-SMI |
| 1.3.6.1.4.1.9.6.1 | ciscoSB | CISCO-SMI |
| 1.3.6.1.4.1.9.6.1.101 | switch001 | CISCOSB-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.6.1.101.137 | rlCdp | CISCOSB-CDP-MIB |
| 1.3.6.1.4.1.9.6.1.101.137.12 | rlCdpSecondaryCacheTable | CISCOSB-CDP-MIB |
| 1.3.6.1.4.1.9.6.1.101.137.12.1 | rlCdpSecondaryCacheEntry | CISCOSB-CDP-MIB |
| 1.3.6.1.4.1.9.6.1.101.137.12.1.3 | rlCdpSecondaryCacheMacAddress | CISCOSB-CDP-MIB |