All MIBs › COM21-HCXTX-MIB › hcxXmitFrequency
hcxXmitFrequency
Module: COM21-HCXTX-MIB
OID (symbolic): COM21-HCXTX-MIB::hcxXmitFrequency
OID (numeric): 1.3.6.1.4.1.1141.2.21.2
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: Contains the transmit frequency of the RF port in KHz. If this value is changed AFTER the acquisition of ComPorts then a corresponding change to the stuXmitFrequency attribute shall be broadcast to all the acquired ComPorts. Minimum step size is 200. i.e. 200000hz. Default is 0.
What is hcxXmitFrequency?
This read-write integer (88000-800000 KHz, step 200), defaulting to 0, sets the RF transmit frequency of the TX card's downstream port, and if changed after ComPorts have already acquired service, that change is broadcast to those ComPorts via their stuXmitFrequency setting. An admin changes this to move the downstream channel, which then forces connected modems to retune. For example, an admin changes hcxXmitFrequency from 450000 to 550000 KHz to move away from local RF interference, causing already-acquired modems to retune to the new frequency.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1141.2.21.2 snmpwalk -v2c -c public <target> COM21-HCXTX-MIB::hcxXmitFrequency
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1141.2.21.2.1 snmpget -v2c -c public <target> COM21-HCXTX-MIB::hcxXmitFrequency.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.1141.2.21.2.1 i <value>
Start monitoring Com21 ComController HCX upstream TX unit (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the COM21-HCXTX-MIB::hcxXmitFrequency OID value, configure state conditions and alerts, and monitor any Com21 ComController HCX upstream TX unit (legacy) from a single console.
OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.4.1.1141 | com21 | COM21-HCX-MIB |
| 1.3.6.1.4.1.1141.2 | com21Hcx | COM21-HCX-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.1141.2.21 | com21HcxDnstrmPortGroup | COM21-HCXTX-MIB |
| 1.3.6.1.4.1.1141.2.21.2 | hcxXmitFrequency | COM21-HCXTX-MIB |