All MIBs › CM-TOPOLOGY-MIB › cmTopologyLinkFromPort
cmTopologyLinkFromPort
Module: CM-TOPOLOGY-MIB
OID (symbolic): CM-TOPOLOGY-MIB::cmTopologyLinkFromPort
OID (numeric): 1.3.6.1.4.1.2544.1.12.9.1.5.1.2
Node type: OBJECT-TYPE
Type: VariablePointer
Access: read-only
Description: Topology Link connects two Network Elements. This object points to the FROM end Port.
What is cmTopologyLinkFromPort?
This VariablePointer object points to the 'from' end port of a topology link that connects two network elements. An admin, or the topology discovery process, uses this to identify one endpoint of a specific inter-element connection. For example, an operator tracing a reported link fault would follow cmTopologyLinkFromPort to identify exactly which physical port on the originating device the link starts from.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.9.1.5.1.2 snmpwalk -v2c -c public <target> CM-TOPOLOGY-MIB::cmTopologyLinkFromPort
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.9.1.5.1.2.1 snmpget -v2c -c public <target> CM-TOPOLOGY-MIB::cmTopologyLinkFromPort.1
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OID Breakdown
Upper-level ancestors (9 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 |
| 1.3.6.1.4.1.2544 | advaMIB | ADVA-MIB |
| 1.3.6.1.4.1.2544.1 | products | ADVA-MIB |
| 1.3.6.1.4.1.2544.1.12 | fsp150cm | ADVA-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.2544.1.12.9 | cmTopologyMIB | CM-TOPOLOGY-MIB |
| 1.3.6.1.4.1.2544.1.12.9.1 | cmTopologyObjects | CM-TOPOLOGY-MIB |
| 1.3.6.1.4.1.2544.1.12.9.1.5 | cmTopologyLinkTable | CM-TOPOLOGY-MIB |
| 1.3.6.1.4.1.2544.1.12.9.1.5.1 | cmTopologyLinkEntry | CM-TOPOLOGY-MIB |
| 1.3.6.1.4.1.2544.1.12.9.1.5.1.2 | cmTopologyLinkFromPort | CM-TOPOLOGY-MIB |