All MIBs › ES1000-MIB › swPortCtrlHOLState
swPortCtrlHOLState
Module: ES1000-MIB
OID (symbolic): ES1000-MIB::swPortCtrlHOLState
OID (numeric): 1.3.6.1.4.1.326.2.20.1.2.2.2.24.3.2.1.11
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: The object provides a way to prevent HOL (Head Of Line) blocking between ports. HOL protection may prevent forwarding a packet to a blocking port.The idea relies on the assumption that it is better to discard packets destined to blocking ports, then to let them consume more and more buffers in the input-port's Rx-counters because eventually these input ports may become totally blocked. The value enabled(3) indicates that HOL function is enabled on this port, as long as swDevCtrlHOLState is also enabled for this device. When disabled(2) but swDevCtrlHOLState is still enabled for the device, HOL function is disabled on this port. The meanings of the values are:
other(1) - this entry is currently in use but the conditions under which it will remain so are different from each of the following values. disabled(2) - HOL function disable. enabled(3) - HOL function enable.
What is swPortCtrlHOLState?
Enables or disables Head-Of-Line blocking protection on this specific port, working alongside the device-wide swDevCtrlHOLState setting to control whether packets destined for a congested port get dropped rather than backing up.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.326.2.20.1.2.2.2.24.3.2.1.11 snmpwalk -v2c -c public <target> ES1000-MIB::swPortCtrlHOLState
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.326.2.20.1.2.2.2.24.3.2.1.11.1 snmpget -v2c -c public <target> ES1000-MIB::swPortCtrlHOLState.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.326.2.20.1.2.2.2.24.3.2.1.11.1 i <value>
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> swPortCtrlHOLState.1
Start monitoring ES1000-series modular Ethernet switch (Marconi/D-Link 'Golf' platform) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ES1000-MIB::swPortCtrlHOLState OID value, configure state conditions and alerts, and monitor any ES1000-series modular Ethernet switch (Marconi/D-Link 'Golf' platform) from a single console.
OID Breakdown
Upper-level ancestors (6 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 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.326 | marconi | ES1000-MIB |
| 1.3.6.1.4.1.326.2 | systems | ES1000-MIB |
| 1.3.6.1.4.1.326.2.20 | external | ES1000-MIB |
| 1.3.6.1.4.1.326.2.20.1 | dlink | ES1000-MIB |
| 1.3.6.1.4.1.326.2.20.1.2 | golf | ES1000-MIB |
| 1.3.6.1.4.1.326.2.20.1.2.2 | golfcommon | ES1000-MIB |
| 1.3.6.1.4.1.326.2.20.1.2.2.2 | marconi_mgmt | ES1000-MIB |
| 1.3.6.1.4.1.326.2.20.1.2.2.2.24 | es1000Series | ES1000-MIB |
| 1.3.6.1.4.1.326.2.20.1.2.2.2.24.3 | swPortPackage | ES1000-MIB |
| 1.3.6.1.4.1.326.2.20.1.2.2.2.24.3.2 | swPortCtrlTable | ES1000-MIB |
| 1.3.6.1.4.1.326.2.20.1.2.2.2.24.3.2.1 | swPortCtrlEntry | ES1000-MIB |
| 1.3.6.1.4.1.326.2.20.1.2.2.2.24.3.2.1.11 | swPortCtrlHOLState | ES1000-MIB |