All MIBs › RDN-CMTS-MIB › rdnRQueryUpChannelTxTimingOffset
rdnRQueryUpChannelTxTimingOffset
Module: RDN-CMTS-MIB
OID (symbolic): RDN-CMTS-MIB::rdnRQueryUpChannelTxTimingOffset
OID (numeric): 1.3.6.1.4.1.4981.2.2.15.1.3
Node type: OBJECT-TYPE
Type: Unsigned32
Access: read-only
Description: The last polled value of the CM's docsIfUpChannelTxTimingOffset MIB object. This is the CM's estimate of the current round trip time obtained from the ranging offset (initial ranging offset + ranging offset adjustments). The CM uses this offset for timing upstream transmissions to ensure synchronized arrivals at the CMTS. Units are in terms of (6.25 microseconds/64).
What is rdnRQueryUpChannelTxTimingOffset?
Read-only Unsigned32 giving the modem's last-polled ranging-derived estimate of round-trip time, used by the modem to time its upstream transmissions so they arrive synchronized at the CMTS; units are 6.25-microsecond/64 ticks. Admins use large or erratic timing offsets as a sign of plant distance/delay issues affecting a modem's ranging.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4981.2.2.15.1.3 snmpwalk -v2c -c public <target> RDN-CMTS-MIB::rdnRQueryUpChannelTxTimingOffset
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4981.2.2.15.1.3.1 snmpget -v2c -c public <target> RDN-CMTS-MIB::rdnRQueryUpChannelTxTimingOffset.1
Start monitoring Motorola CMTS platforms (upstream/downstream channel config, cable-modem registration/reset) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the RDN-CMTS-MIB::rdnRQueryUpChannelTxTimingOffset OID value, configure state conditions and alerts, and monitor any Motorola CMTS platforms (upstream/downstream channel config, cable-modem registration/reset) from a single console.
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 |
| 1.3.6.1.4.1.4981 | riverdelta | RDN-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.4981.2 | rdnCmtsMib | RDN-CMTS-MIB |
| 1.3.6.1.4.1.4981.2.2 | rdnCmtsMiscObjects | RDN-CMTS-MIB |
| 1.3.6.1.4.1.4981.2.2.15 | rdnRQueryCmtsCmStatusTable | RDN-CMTS-MIB |
| 1.3.6.1.4.1.4981.2.2.15.1 | rdnRQueryCmtsCmStatusEntry | RDN-CMTS-MIB |
| 1.3.6.1.4.1.4981.2.2.15.1.3 | rdnRQueryUpChannelTxTimingOffset | RDN-CMTS-MIB |