RoamAbout-MIB :: rabtDot11CurrentFragmentationThreshold

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › RoamAbout-MIB › rabtDot11CurrentFragmentationThreshold

rabtDot11CurrentFragmentationThreshold

Module: RoamAbout-MIB

OID (symbolic): RoamAbout-MIB::rabtDot11CurrentFragmentationThreshold

OID (numeric): 1.3.6.1.4.1.36.2.18.35.15.1.7

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: This attribute shall specify the mandatory maximum size, in octets, of the MPDU that may be delivered to the PHY. An MSDU shall be broken into fragments if its size exceeds the value of this attribute after adding MAC headers and trailers. An MSDU or MMPDU shall be fragmented when the resulting frame has an individual address in the Address1 field, and the length of the frame is larger than this threshold. The default value for this attribute shall be the lesser of 2346 or the aMPDUMaxLength of the attached PHY and shall never exceed the lesser of 2346 or the aMPDUMaxLength of the attached PHY. The value of this attribute shall never be less than 256.

What is rabtDot11CurrentFragmentationThreshold?

This read-only value (256-2346 octets) reports the current maximum MPDU size before an MSDU gets fragmented for delivery to the PHY; frames larger than this threshold with a unicast destination are split into fragments. Lowering this value can help on noisy RF links by reducing the cost of retransmitting a failed frame.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.36.2.18.35.15.1.7
snmpwalk -v2c -c public <target> RoamAbout-MIB::rabtDot11CurrentFragmentationThreshold

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.36.2.18.35.15.1.7.1
snmpget -v2c -c public <target> RoamAbout-MIB::rabtDot11CurrentFragmentationThreshold.1

Start monitoring DEC RoamAbout wireless access point, legacy 802.11 AP (radio card/firmware/configuration status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the RoamAbout-MIB::rabtDot11CurrentFragmentationThreshold OID value, configure state conditions and alerts, and monitor any DEC RoamAbout wireless access point, legacy 802.11 AP (radio card/firmware/configuration status) 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
1.3.6.1.4.1.36decCMU-MIB
1.3.6.1.4.1.36.2emaDEC-ATM-CHASSIS-MIB
1.3.6.1.4.1.36.2.18decMIBextensionDEC-ATM-CHASSIS-MIB
Numeric OIDNameModule
1.3.6.1.4.1.36.2.18.35roamaboutRoamAbout-MIB
1.3.6.1.4.1.36.2.18.35.15rabtDot11RoamAbout-MIB
1.3.6.1.4.1.36.2.18.35.15.1rabtDot11CurrentRoamAbout-MIB
1.3.6.1.4.1.36.2.18.35.15.1.7rabtDot11CurrentFragmentationThresholdRoamAbout-MIB