Juniper-L2TP-MIB :: juniL2tpTunnelStatCtlSendZLB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Juniper-L2TP-MIB › juniL2tpTunnelStatCtlSendZLB

juniL2tpTunnelStatCtlSendZLB

Module: Juniper-L2TP-MIB

OID (symbolic): Juniper-L2TP-MIB::juniL2tpTunnelStatCtlSendZLB

OID (numeric): 1.3.6.1.4.1.4874.2.2.35.1.3.3.1.1.21

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: Number of Zero Length Body control packets sent.

What is juniL2tpTunnelStatCtlSendZLB?

Read-only counter of Zero-Length-Body acknowledgement-only control packets this router has sent on this tunnel, the outbound counterpart to juniL2tpTunnelStatCtlRecvZLB. Expect this to climb steadily on an idle-but-established tunnel just to keep acking the peer's control traffic.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4874.2.2.35.1.3.3.1.1.21
snmpwalk -v2c -c public <target> Juniper-L2TP-MIB::juniL2tpTunnelStatCtlSendZLB

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4874.2.2.35.1.3.3.1.1.21.1
snmpget -v2c -c public <target> Juniper-L2TP-MIB::juniL2tpTunnelStatCtlSendZLB.1

Start monitoring Juniper Networks E-series broadband services router (L2TP tunnel termination) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Juniper-L2TP-MIB::juniL2tpTunnelStatCtlSendZLB OID value, configure state conditions and alerts, and monitor any Juniper Networks E-series broadband services router (L2TP tunnel termination) from a single console.

OID Breakdown

Upper-level ancestors (9 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.4874juniperUniJuniper-UNI-SMI
1.3.6.1.4.1.4874.2juniperUniMibsJuniper-UNI-SMI
1.3.6.1.4.1.4874.2.2juniMibsJuniper-MIBs
Numeric OIDNameModule
1.3.6.1.4.1.4874.2.2.35juniL2tpMIBJuniper-L2TP-MIB
1.3.6.1.4.1.4874.2.2.35.1juniL2tpObjectsJuniper-L2TP-MIB
1.3.6.1.4.1.4874.2.2.35.1.3juniL2tpTunnelJuniper-L2TP-MIB
1.3.6.1.4.1.4874.2.2.35.1.3.3juniL2tpTunnelStatisticsJuniper-L2TP-MIB
1.3.6.1.4.1.4874.2.2.35.1.3.3.1juniL2tpTunnelStatTableJuniper-L2TP-MIB
1.3.6.1.4.1.4874.2.2.35.1.3.3.1.1juniL2tpTunnelStatEntryJuniper-L2TP-MIB
1.3.6.1.4.1.4874.2.2.35.1.3.3.1.1.21juniL2tpTunnelStatCtlSendZLBJuniper-L2TP-MIB