All MIBs › CUMULUS-POE-MIB › portClass
portClass
Module: CUMULUS-POE-MIB
OID (symbolic): CUMULUS-POE-MIB::portClass
OID (numeric): 1.3.6.1.4.1.40310.3.2.1.5
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: The portClass represents the standard class of the port shown as
follows:
Class usage Class current Power range Class description
[mA] [Watt]
====================================================================
0 Default 0-4 0.44-12.94 Class unimplemented
1 Optional 9-12 0.44-3.84 Very Low power
2 Optional 17-20 3.84-6.49 Low power
3 Optional 26-30 6.49-12.95 Mid power
4 Valid for 36-44 12.95-25.50 High power
Class 4 for 802.3at(Type 2) devices and not allowed for 802.3af
devices. Note that a portClass of Default can also exist if a
portStatus is not connected.What is portClass?
This value reports the IEEE 802.3af/at power class the connected powered device negotiated on this port, ranging from 0 (default/unimplemented) through 4 (high power, up to 25.5W). An admin reads it to verify a device negotiated the power class it needs, such as confirming a PTZ camera got class 4 instead of being capped lower. A portClass of 2 indicates the device negotiated low power in the 3.84-6.49 watt range.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.40310.3.2.1.5 snmpwalk -v2c -c public <target> CUMULUS-POE-MIB::portClass
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.40310.3.2.1.5.1 snmpget -v2c -c public <target> CUMULUS-POE-MIB::portClass.1
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OID Breakdown
Upper-level ancestors (7 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 |
| 1.3.6.1.4.1.40310 | cumulusMib | CUMULUS-SNMP-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.40310.3 | poeMIBObjects | CUMULUS-POE-MIB |
| 1.3.6.1.4.1.40310.3.2 | poeObjectsTable | CUMULUS-POE-MIB |
| 1.3.6.1.4.1.40310.3.2.1 | poeObjectsEntry | CUMULUS-POE-MIB |
| 1.3.6.1.4.1.40310.3.2.1.5 | portClass | CUMULUS-POE-MIB |