ETH-SWITCH-MIB :: portLED

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › ETH-SWITCH-MIB › portLED

portLED

Module: ETH-SWITCH-MIB

OID (symbolic): ETH-SWITCH-MIB::portLED

OID (numeric): 1.3.6.1.4.1.208.39.3.2.1.3

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-only

Description: The value of this object represent the status (colour) of the LED(s) attached to this port.

Lower 3 bits indicates off/colour (off(0), red(1), green(2), yellow(4)), Higher 5 bits reserved for flash frequency. For value 0-9 the resolution is 0.1 Hz and 10-31 the resolution is 1.0 Hz. Ex. 8 gives 0.8 Hz and 11 gives 2 Hz.

For PIM slots with two LEDs that can contain either an expansion card, a one port PIM or a PIM with multiple ports a special case is needed. The two LEDs are mapped into a two LED octets. In case the PIM slot contain a PIM with multiple ports a third LED octet represent the first port on the PIM.

In the case there is two LEDs on the front, the first LED octet is the front and the second the back.

What is portLED?

Encodes the current LED indicator state (off/red/green/yellow) and flash frequency for the port's status light, packed as one octet per LED with the low 3 bits for color and the high 5 bits for flash rate; multi-port PIMs may report up to three LED octets. An admin (or the switch's own front-panel logic) reads this to know what the physical LED is displaying without visually inspecting the unit.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.208.39.3.2.1.3
snmpwalk -v2c -c public <target> ETH-SWITCH-MIB::portLED

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.208.39.3.2.1.3.1
snmpget -v2c -c public <target> ETH-SWITCH-MIB::portLED.1

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OID Breakdown

Upper-level ancestors (7 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
1.3.6.1.4.1.208scanetSCANET-MIB
Numeric OIDNameModule
1.3.6.1.4.1.208.39ethSwitchETH-SWITCH-MIB
1.3.6.1.4.1.208.39.3portsETH-SWITCH-MIB
1.3.6.1.4.1.208.39.3.2portTableETH-SWITCH-MIB
1.3.6.1.4.1.208.39.3.2.1portEntryETH-SWITCH-MIB
1.3.6.1.4.1.208.39.3.2.1.3portLEDETH-SWITCH-MIB