All MIBs › CMM3-MIB › rxPausePkts
rxPausePkts
Module: CMM3-MIB
OID (symbolic): CMM3-MIB::rxPausePkts
OID (numeric): 1.3.6.1.4.1.161.19.3.4.2.1.1.16
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The number of PAUSE frame received by a port. The PAUSE frame must have a valid MAC Control Frame EtherType field (88-08h), have a destination MAC address of either the MAC Control frame reserved multicast address(01-80-c2-00-00-011) or the unique MAC address associated with the specific port, a valid PAUSE Opcode (00-01), be a minimum of 64 bytes in length (excluding preamble but including FCS), and have a valid CRC. Although an 802.3 compliant MAC is only permitted to transmit PAUSE frames when in full duplex mode, with flow control enabled, and with the transfer of PAUSE frames determined by the result of auto-negotiation, an 802.3 MAC receiver is required to count all received PAUSE frames, regardless of its half/full-duplex status. An indication that a MAC is in half-duplex with the RxPausePkts incrementing indicates a non-compliant transmitting device on the network.
What is rxPausePkts?
This Counter32 object counts PAUSE frames received by a port, which must carry a specific MAC Control EtherType, a recognized destination address, and a valid PAUSE opcode to qualify. An admin investigating unexplained throughput drops on a link checks this counter, since a flow of PAUSE frames means the connected device is actively telling this port to stop transmitting, throttling throughput. For example, a port showing a high rate of received PAUSE frames would lead the admin to investigate why the downstream device is repeatedly signaling flow-control back-pressure.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.161.19.3.4.2.1.1.16 snmpwalk -v2c -c public <target> CMM3-MIB::rxPausePkts
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.161.19.3.4.2.1.1.16.1 snmpget -v2c -c public <target> CMM3-MIB::rxPausePkts.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 |
| 1.3.6.1.4.1.161 | mot | WHISP-GLOBAL-REG-MIB |
| 1.3.6.1.4.1.161.19 | whispRoot | WHISP-GLOBAL-REG-MIB |
| 1.3.6.1.4.1.161.19.3 | whispProducts | WHISP-GLOBAL-REG-MIB |
| 1.3.6.1.4.1.161.19.3.4 | whispCMM | WHISP-GLOBAL-REG-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.161.19.3.4.2 | cmmSwitch | CMM3-MIB |
| 1.3.6.1.4.1.161.19.3.4.2.1 | cmmSwitchTable | CMM3-MIB |
| 1.3.6.1.4.1.161.19.3.4.2.1.1 | cmmSwitchEntry | CMM3-MIB |
| 1.3.6.1.4.1.161.19.3.4.2.1.1.16 | rxPausePkts | CMM3-MIB |