All MIBs › FIREBRICK-MIB › fbL2tpSessionsFree
fbL2tpSessionsFree
Module: FIREBRICK-MIB
OID (symbolic): FIREBRICK-MIB::fbL2tpSessionsFree
OID (numeric): 1.3.6.1.4.1.24693.1701.2.0
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: Number of sessions in FREE state.
What is fbL2tpSessionsFree?
This counts how many L2TP session slots are currently in the FREE (unused, available) state within the Firebrick's session table. An admin watches session-level free capacity separately from tunnel-level capacity, since many PPP sessions can run inside a smaller number of tunnels. For example, fbL2tpSessionsFree approaching 0 while fbL2tpSessionsLive is high indicates the session table itself is nearing capacity, even if tunnel capacity still has headroom.
Examples
Get this value (SNMPv2c):
snmpget -v2c -c public <target> 1.3.6.1.4.1.24693.1701.2.0 snmpget -v2c -c public <target> FIREBRICK-MIB::fbL2tpSessionsFree
Start monitoring Firebrick multi-WAN router/VPN concentrator (unofficial Observium MIB) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the FIREBRICK-MIB::fbL2tpSessionsFree OID value, configure state conditions and alerts, and monitor any Firebrick multi-WAN router/VPN concentrator (unofficial Observium MIB) 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 |
|---|---|---|
| 1.3.6.1.4.1.24693 | firebrick | FIREBRICK-MIB |
| 1.3.6.1.4.1.24693.1701 | fbL2tpObjects | FIREBRICK-MIB |
| 1.3.6.1.4.1.24693.1701.2 | fbL2tpSessionStats | FIREBRICK-MIB |
| 1.3.6.1.4.1.24693.1701.2.0 | fbL2tpSessionsFree | FIREBRICK-MIB |