All MIBs › ROHC-RTP-MIB › rohcRtpContextPktsLostPhysical
rohcRtpContextPktsLostPhysical
Module: ROHC-RTP-MIB
OID (symbolic): ROHC-RTP-MIB::rohcRtpContextPktsLostPhysical
OID (numeric): 1.3.6.1.2.1.114.1.1.1.16
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: This object is only applicable to decompressor contexts
using the LLA profile. It contains the number of physical packet losses on the link between compressor and decompressor, that have been indicated to the decompressor.
Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime. For checking ifCounterDiscontinuityTime, the interface index is required. It can be determined by reading the rohcChannelTable of the ROHC-MIB.
The value of this object is only valid for LLA profiles, i.e., if the corresponding rohcProfile has a value of 0x0005. If the corresponding rohcProfile has a value other than 0x0005, then this object MUST NOT be instantiated.
What is rohcRtpContextPktsLostPhysical?
This counter, valid only on LLA-profile decompressor contexts, counts packets that were physically lost on the link between compressor and decompressor, as reported to the decompressor. An admin diagnosing a noisy wireless link would use this counter as a direct measure of link-layer packet loss affecting the compressed stream, distinct from losses caused by ROHC processing itself. For example, rohcRtpContextPktsLostPhysical incrementing rapidly during a rainstorm on a microwave link would confirm the losses are physical-layer, not a ROHC configuration issue.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.114.1.1.1.16 snmpwalk -v2c -c public <target> ROHC-RTP-MIB::rohcRtpContextPktsLostPhysical
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.114.1.1.1.16.1 snmpget -v2c -c public <target> ROHC-RTP-MIB::rohcRtpContextPktsLostPhysical.1
Start monitoring vendor-neutral, standards-based MIB, cellular/mobile access router or gateway performing header compression with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ROHC-RTP-MIB::rohcRtpContextPktsLostPhysical OID value, configure state conditions and alerts, and monitor any vendor-neutral, standards-based MIB, cellular/mobile access router or gateway performing header compression 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 |
| 1.3.6.1.2 | mgmt | APERTUS-NPG-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.114 | rohcRtpMIB | ROHC-RTP-MIB |
| 1.3.6.1.2.1.114.1 | rohcRtpObjects | ROHC-RTP-MIB |
| 1.3.6.1.2.1.114.1.1 | rohcRtpContextTable | ROHC-RTP-MIB |
| 1.3.6.1.2.1.114.1.1.1 | rohcRtpContextEntry | ROHC-RTP-MIB |
| 1.3.6.1.2.1.114.1.1.1.16 | rohcRtpContextPktsLostPhysical | ROHC-RTP-MIB |