All MIBs › CASCADE-MIB › pportAtmNumBitsVPI
pportAtmNumBitsVPI
Module: CASCADE-MIB
OID (symbolic): CASCADE-MIB::pportAtmNumBitsVPI
OID (numeric): 1.3.6.1.4.1.277.1.4.2.1.67
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: This entry holds a count of the VPI bits supppoted my this ATM card.
What is pportAtmNumBitsVPI?
This reports how many bits this ATM card's hardware allocates to the VPI field for this port. This caps the number of distinct virtual paths (2 to the power n) this specific port can support, which is the practical limit on how many separate VP-level circuits or customers can be segmented on this one physical port. A port reporting 8 VPI bits supports up to 256 virtual paths, so a plan to provision more than 256 distinct VPI-level circuits on this single port would exceed the card's addressing capability.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.277.1.4.2.1.67 snmpwalk -v2c -c public <target> CASCADE-MIB::pportAtmNumBitsVPI
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.277.1.4.2.1.67.1 snmpget -v2c -c public <target> CASCADE-MIB::pportAtmNumBitsVPI.1
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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 |
| 1.3.6.1.4.1.277.1.4.2.1.67 | pportAtmNumBitsVPI | CASCADE-MIB |