All MIBs › PRVT-ISIS-MIB › prvtIsisCircLvl1IDOctet
prvtIsisCircLvl1IDOctet
Module: PRVT-ISIS-MIB
OID (symbolic): PRVT-ISIS-MIB::prvtIsisCircLvl1IDOctet
OID (numeric): 1.3.6.1.4.1.738.1.6.4.4.1.3.2.1.33
Node type: OBJECT-TYPE
Type: Integer32
Access: read-only
Description: A one byte identifier for the circuit selected by the Intermediate System.
On point-to-point circuits, the value is used as the Local Circuit ID in point-to-point IIH PDUs transmitted on this circuit. In this case, values of prvtIsisCircLvl1IDOctet do not need to be unique.
For broadcast circuits, the value is used to generate the LAN ID that will be used if this Intermediate System is elected as the Designated IS on this circuit. The value is required to differ on LANs where the Intermediate System is the Designated Intermediate System.
What is prvtIsisCircLvl1IDOctet?
This is a single byte the router picks to help identify this circuit at level 1: on point-to-point links it becomes the Local Circuit ID in IIH PDUs and doesn't need to be unique, while on broadcast links it feeds into the LAN ID used if this router wins the DIS election, and there it must differ across LANs where this router is DIS.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.738.1.6.4.4.1.3.2.1.33 snmpwalk -v2c -c public <target> PRVT-ISIS-MIB::prvtIsisCircLvl1IDOctet
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.738.1.6.4.4.1.3.2.1.33.1 snmpget -v2c -c public <target> PRVT-ISIS-MIB::prvtIsisCircLvl1IDOctet.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 |
| 1.3.6.1.4.1.738 | privateVendorOID | PRIV-VENDORDEF-MIB |
| 1.3.6.1.4.1.738.1 | prvt_products | PRVT-SWITCH-MIB |
| 1.3.6.1.4.1.738.1.6 | ipSwitch | PRVT-SWITCH-MIB |
| 1.3.6.1.4.1.738.1.6.4 | routingProtocols | PRVT-OSPF-EXTENSION-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.738.1.6.4.4 | prvtIsisMIB | PRVT-ISIS-MIB |
| 1.3.6.1.4.1.738.1.6.4.4.1 | prvtIsisMIBObjects | PRVT-ISIS-MIB |
| 1.3.6.1.4.1.738.1.6.4.4.1.3 | prvtIsisCirc | PRVT-ISIS-MIB |
| 1.3.6.1.4.1.738.1.6.4.4.1.3.2 | prvtIsisCircTable | PRVT-ISIS-MIB |
| 1.3.6.1.4.1.738.1.6.4.4.1.3.2.1 | prvtIsisCircEntry | PRVT-ISIS-MIB |
| 1.3.6.1.4.1.738.1.6.4.4.1.3.2.1.33 | prvtIsisCircLvl1IDOctet | PRVT-ISIS-MIB |