All MIBs › CASCADE-MIB › lportProtocol
lportProtocol
Module: CASCADE-MIB
OID (symbolic): CASCADE-MIB::lportProtocol
OID (numeric): 1.3.6.1.4.1.277.1.5.1.1.6
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: The data link protocol running on the logical port.
What is lportProtocol?
This sets which data-link protocol, frame relay (nfr), PPP-encapsulated frame relay per RFC 1294, SMDS, ATM, ISDN D-channel, a direct management trunk, SMDS option management, or ATM AAL1, is running on this logical port. Because this determines how the switch interprets every frame or cell arriving on this specific logical port, setting it incorrectly against what the far end actually sends would cause the switch to misparse valid traffic as garbage rather than simply failing to link up, making protocol mismatches here a particularly confusing class of fault to diagnose. A logical port carrying circuit-emulated voice traffic would be set to atmAAL1 rather than the general-purpose atm value, since AAL1 specifically handles constant-bit-rate circuit emulation differently from AAL5 data traffic.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.277.1.5.1.1.6 snmpwalk -v2c -c public <target> CASCADE-MIB::lportProtocol
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.277.1.5.1.1.6.1 snmpget -v2c -c public <target> CASCADE-MIB::lportProtocol.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.277.1.5.1.1.6.1 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::lportProtocol 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 |
| 1.3.6.1.4.1.277.1.5 | lport | CASCADE-MIB |
| 1.3.6.1.4.1.277.1.5.1 | lportTable | CASCADE-MIB |
| 1.3.6.1.4.1.277.1.5.1.1 | lportEntry | CASCADE-MIB |
| 1.3.6.1.4.1.277.1.5.1.1.6 | lportProtocol | CASCADE-MIB |