All MIBs › CASCADE-MIB › pportMaxActiveVpiBits
pportMaxActiveVpiBits
Module: CASCADE-MIB
OID (symbolic): CASCADE-MIB::pportMaxActiveVpiBits
OID (numeric): 1.3.6.1.4.1.277.1.4.2.1.78
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: The maximum number of active VPI bits configured for use at the ATM interface. At the ATM UNI, the maximum number of active VPI bits configured for use ranges from 0 to 8 only.
What is pportMaxActiveVpiBits?
This sets how many of the available VPI bits are actually active for use at this ATM interface, ranging from 0 to 12 overall but restricted to 0-8 at a UNI per the description. This is distinct from the hardware's total VPI bit capacity (pportAtmNumBitsVPI); it is the administratively narrowed subset actually usable on this port, which effectively caps how many virtual paths can be provisioned on this specific interface regardless of what the hardware could otherwise support. Setting pportMaxActiveVpiBits to 4 on a UNI port limits it to 16 usable VPIs even if the underlying card hardware could address up to 256.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.277.1.4.2.1.78 snmpwalk -v2c -c public <target> CASCADE-MIB::pportMaxActiveVpiBits
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.277.1.4.2.1.78.1 snmpget -v2c -c public <target> CASCADE-MIB::pportMaxActiveVpiBits.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.277.1.4.2.1.78.1 i <value>
Start monitoring Cascade Communications ATM/Frame Relay switches (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CASCADE-MIB::pportMaxActiveVpiBits OID value, configure state conditions and alerts, and monitor any Cascade Communications ATM/Frame Relay switches (legacy) 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 |
|---|---|---|
| 1.3.6.1.4.1.277 | cascade | CASCADE-MIB |
| 1.3.6.1.4.1.277.1 | cascfr | CASCADE-MIB |
| 1.3.6.1.4.1.277.1.4 | pport | CASCADE-MIB |
| 1.3.6.1.4.1.277.1.4.2 | pportTable | CASCADE-MIB |
| 1.3.6.1.4.1.277.1.4.2.1 | pportEntry | CASCADE-MIB |
| 1.3.6.1.4.1.277.1.4.2.1.78 | pportMaxActiveVpiBits | CASCADE-MIB |