CIRCUIT-MIB :: circuitPreferredEP1OptPort

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCIRCUIT-MIBcircuitPreferredEP1OptPort

circuitPreferredEP1OptPort

Module: CIRCUIT-MIB

OID (symbolic): CIRCUIT-MIB::circuitPreferredEP1OptPort

OID (numeric): 1.3.6.1.4.1.5812.6.8.1.42

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: If the circuit spans one or two rings, this is the port number of the first preferred ring.

What is circuitPreferredEP1OptPort?

This sets the port number, on the slot identified by circuitPreferredEP1OptSlot, of the specific ring interface the admin prefers this circuit route through, refining the manual override down from a card to an individual physical port. Since a ring interface card can have multiple ports each connected to different physical rings, this is what disambiguates exactly which ring the admin means. For example, if slot 6 has four ring ports, setting this to port 2 pins the circuit specifically to the ring reachable via that second port, not the other three.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5812.6.8.1.42
snmpwalk -v2c -c public <target> CIRCUIT-MIB::circuitPreferredEP1OptPort

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.5812.6.8.1.42.1
snmpget -v2c -c public <target> CIRCUIT-MIB::circuitPreferredEP1OptPort.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.5812.6.8.1.42.1 i <value>

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> circuitPreferredEP1OptPort.1

Start monitoring Coriolis Networks optical/lambda transport equipment (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CIRCUIT-MIB::circuitPreferredEP1OptPort OID value, configure state conditions and alerts, and monitor any Coriolis Networks optical/lambda transport equipment (legacy) from a single console.

OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.4.1.5812coriolisMibsCORIOLIS-MIB
1.3.6.1.4.1.5812.6circuitCORIOLIS-MIB
Numeric OIDNameModule
1.3.6.1.4.1.5812.6.8circuitTableCIRCUIT-MIB
1.3.6.1.4.1.5812.6.8.1circuitEntryCIRCUIT-MIB
1.3.6.1.4.1.5812.6.8.1.42circuitPreferredEP1OptPortCIRCUIT-MIB