Juniper-HDLC-MIB :: juniHdlcIfMtu

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

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juniHdlcIfMtu

Module: Juniper-HDLC-MIB

OID (symbolic): Juniper-HDLC-MIB::juniHdlcIfMtu

OID (numeric): 1.3.6.1.4.1.4874.2.2.9.1.2.1.4

Node type: OBJECT-TYPE

Type: Integer32

Access: read-create

Description: The Maximum Transmission Unit (MTU) this interface is permitted to transmit.

At creation, if a value for this object is not specified, a default will be chosen that is suitable for the type of lower interface on which this interface is stacked.

This setting plus 2 bytes for HDLC address/control plus the length in bytes of the HDLC CRC cannot exceed 65535. The maximum value for this object reflects the largest possible value when no CRC is used; technology constraints of a particular implementation may further limit the upper bound value.

What is juniHdlcIfMtu?

This value sets the Maximum Transmission Unit, in octets, that this HDLC interface may transmit, with the total including 2 bytes of HDLC address/control plus the CRC length capped at 65535. Admins tune it to match end-to-end path requirements or leave it at the vendor default suitable for the underlying interface type. Setting it to 1500 configures a standard Ethernet-equivalent MTU for the HDLC-encapsulated link.

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
1.3.6.1.4.1.4874.2.2.9juniHdlcMIBJuniper-HDLC-MIB
1.3.6.1.4.1.4874.2.2.9.1juniHdlcObjectsJuniper-HDLC-MIB
1.3.6.1.4.1.4874.2.2.9.1.2juniHdlcIfTableJuniper-HDLC-MIB
1.3.6.1.4.1.4874.2.2.9.1.2.1juniHdlcIfEntryJuniper-HDLC-MIB
1.3.6.1.4.1.4874.2.2.9.1.2.1.4juniHdlcIfMtuJuniper-HDLC-MIB