IEEE8021-AS-MIB :: ieee8021AsPortDSInitialLogPdelayReqInterval

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › IEEE8021-AS-MIB › ieee8021AsPortDSInitialLogPdelayReqInterval

ieee8021AsPortDSInitialLogPdelayReqInterval

Module: IEEE8021-AS-MIB

OID (symbolic): IEEE8021-AS-MIB::ieee8021AsPortDSInitialLogPdelayReqInterval

OID (numeric): 1.3.111.2.802.1.1.20.1.5.1.28

Node type: OBJECT-TYPE

Type: Integer32

Access: read-write

Description: For full-duplex, IEEE 802.3 media and CSN media that use the peer delay mechanism to measure path delay (see E.4.3.1), the value is the logarithm to the base 2 of the Pdelay_Req message transmission interval used when, (a) the port is initialized, or (b) a message interval request TLV is received with the linkDelayInterval field set to 126 (see 11.5.2.2 and the LinkDelaySyncIntervalSetting state machine, 11.2.17).

For these media, the initialization value is 0. For all other media, the value is 127.

The contents of this variable SHALL be maintained across a restart of the system.

What is ieee8021AsPortDSInitialLogPdelayReqInterval?

The log-base-2 Pdelay_Req transmission interval this port starts with at initialization, for media that measure path delay via the peer-delay mechanism (default 0 on full-duplex Ethernet/CSN, 127, meaning never sent, on other media). Adjust it to change how often a port probes link delay right after coming up.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.111.2.802.1.1.20.1.5.1.28
snmpwalk -v2c -c public <target> IEEE8021-AS-MIB::ieee8021AsPortDSInitialLogPdelayReqInterval

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.111.2.802.1.1.20.1.5.1.28.1
snmpget -v2c -c public <target> IEEE8021-AS-MIB::ieee8021AsPortDSInitialLogPdelayReqInterval.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.111.2.802.1.1.20.1.5.1.28.1 i <value>

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OID Breakdown

Upper-level ancestors (3 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.111.2.802.1.1ieee802dot1mibsIEEE8021-TC-MIB
Numeric OIDNameModule
1.3.111.2.802.1.1.20ieee8021AsTimeSyncMibIEEE8021-AS-MIB
1.3.111.2.802.1.1.20.1ieee8021AsMIBObjectsIEEE8021-AS-MIB
1.3.111.2.802.1.1.20.1.5ieee8021AsPortDSIfTableIEEE8021-AS-MIB
1.3.111.2.802.1.1.20.1.5.1ieee8021AsPortDSIfEntryIEEE8021-AS-MIB
1.3.111.2.802.1.1.20.1.5.1.28ieee8021AsPortDSInitialLogPdelayReqIntervalIEEE8021-AS-MIB