All MIBs › CISCO-VISM-CONN-MIB › vismConnPCR
vismConnPCR
Module: CISCO-VISM-CONN-MIB
OID (symbolic): CISCO-VISM-CONN-MIB::vismConnPCR
OID (numeric): 1.3.6.1.4.1.351.110.5.5.3.1.1.1.22
Node type: OBJECT-TYPE
Type: Integer32
Access: read-write
Description: This indicates bandwidth(Peak Cell Rate) in cells per second from the local end i.e in the ingress direction of the PVC.
For AAL2 PVCs, the PCR to be specified has to be computed based on: a) The no. of channels multiplexed on an AAL2 PVC b) The Codec (Compression Algorithm) used. c) The VAD factor d) Partial fill factor.
For a AAL2 bearer PVC, the max value is 60,000 cps on E1 card and 50,000 cps on T1 card, and for a signaling PVC, the max value is 400 cps.
This parameter can not be changed when there are calls active on the PVC.
For variable bit rate connections the minimum value of PCR is 15.
What is vismConnPCR?
This read-write Integer32 object (1-100000), in cells-per-second, indicates the bandwidth (Peak Cell Rate) from the local end in the ingress direction of the PVC, with the value for AAL2 PVCs needing to be computed from the number of multiplexed channels, codec, VAD factor, and partial fill factor, and a max of 60,000 cps on E1 or 50,000 cps on T1 cards. Getting this calculation wrong on an AAL2 trunk carrying many multiplexed voice channels can either under-provision bandwidth (causing call quality issues) or waste capacity. An engineer provisioning a heavily multiplexed AAL2 bearer PVC would carefully calculate this PCR value factoring in channel count, codec, and VAD before setting it, respecting the card-type-specific maximum.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.351.110.5.5.3.1.1.1.22 snmpwalk -v2c -c public <target> CISCO-VISM-CONN-MIB::vismConnPCR
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.351.110.5.5.3.1.1.1.22.1 snmpget -v2c -c public <target> CISCO-VISM-CONN-MIB::vismConnPCR.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.351.110.5.5.3.1.1.1.22.1 i <value>
Start monitoring Cisco VISM (Voice Interworking Service Module) card, MGX platform (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CISCO-VISM-CONN-MIB::vismConnPCR OID value, configure state conditions and alerts, and monitor any Cisco VISM (Voice Interworking Service Module) card, MGX platform (legacy) from a single console.
OID Breakdown
Upper-level ancestors (12 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 |
| 1.3.6.1.4.1.351 | stratacom | CISCOWAN-SMI |
| 1.3.6.1.4.1.351.110 | basis | BASIS-MIB |
| 1.3.6.1.4.1.351.110.5 | basisServices | BASIS-MIB |
| 1.3.6.1.4.1.351.110.5.5 | voice | BASIS-MIB |
| 1.3.6.1.4.1.351.110.5.5.3 | vismChanGrp | BASIS-MIB |
| 1.3.6.1.4.1.351.110.5.5.3.1 | vismChanCnfGrp | BASIS-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.351.110.5.5.3.1.1 | vismChanCnfGrpTable | CISCO-VISM-CONN-MIB |
| 1.3.6.1.4.1.351.110.5.5.3.1.1.1 | vismChanCnfGrpEntry | CISCO-VISM-CONN-MIB |
| 1.3.6.1.4.1.351.110.5.5.3.1.1.1.22 | vismConnPCR | CISCO-VISM-CONN-MIB |