ISIS_1.3.6.1.4.1.2011.5.25.24.2.4.18 hwIsisLspRemainingLifetimeRefresh

Trap Buffer Description

ISIS receive LSP with small Remaining Lifetime. (isisSysInstance=[isisSysInstance], isisSysLevelIndex=[isisSysLevelIndex], isisCircIndex=[isisCircIndex], isisCircIfIndex=[isisCircIfIndex], ifIndex=[ifIndex], ifName=[ifName], isisAdjSysID=[hwIsisAdjSysID], isisPduLspId=[isisPduLspId], isisRemainingLifetime=[hwIsisRemainingLifetime])

This object indicates that the Remaining Lifetime of a received LSP is less than 60s.

Trap Attributes

Trap Attribute	Description
Alarm or Event	Event
Trap Severity	Informational
Mnemonic Code	IS_RECV_SMALL_RLT_LSP
Trap OID	1.3.6.1.4.1.2011.5.25.24.2.4.18
MIB	HUAWEI-ISIS-CONF-MIB
Alarm ID	This is an event trap and does not involve alarm ID.
Alarm Name	This is an event trap and does not involve alarm name.
Alarm Type	This is an event trap and does not involve alarm type.
Raise or Clear	This is an event trap and does not involve alarm generation or clearance.
Match trap	-

Trap Buffer Parameters

Parameter	Description
isisSysInstance	ID of an IS-IS process.
isisSysLevelIndex	IS-IS level.
isisCircIndex	Index of the interface that received the LSP.
isisCircIfIndex	Index of the interface that received the LSP.
ifIndex	Interface index.
ifName	Name of the interface that received the LSP.
hwIsisAdjSysID	System ID of the neighbor that sent the LSP.
isisPduLspId	LSP ID.
hwIsisRemainingLifetime	Remaining Lifetime of the LSP.

VB Parameters

VB OID	VB Name	VB Index
1.3.6.1.3.37.1.1.1.1.1	isisSysInstance	isisSysInstance
1.3.6.1.3.37.1.2.1.1.1	isisSysLevelIndex	isisSysInstance isisSysLevelIndex
1.3.6.1.3.37.1.3.1.1.2	isisCircIfIndex	isisSysInstance isisCircIndex
1.3.6.1.2.1.31.1.1.1.1	ifName	ifIndex
1.3.6.1.4.1.2011.5.25.24.2.2.5	hwIsisAdjSysID	-
1.3.6.1.3.37.1.10.1.1.1	isisPduLspId	isisSysInstance
1.3.6.1.4.1.2011.5.25.24.2.2.13	hwIsisRemainingLifetime	-

Impact on the System

LSP flapping or a route calculation error may occur.

Possible Causes

A new LSP generated by another device is received, and the Remaining Lifetime value of the LSP is not 0 and less than 60 seconds.

Procedure

1. Run the display isis lsdb command to check the Holdtime field. This field indicates the value of Remaining Lifetime. Check whether the value is less than 60s.

a. Check whether the Remaining Lifetime of the LSP is less than 60s when the neighbor sent it.

b. Check whether the LSP is an attack packet.

c. Check whether the Remaining Lifetime was changed manually.

If the Remaining Lifetime of the LSP is less than 60s, check whether it was changed manually.
If the Remaining Lifetime was changed manually, no action is required, and go to Step 3.
If the Remaining Lifetime was not changed manually, go to Step 2.
If the Remaining Lifetime of the LSP is not less than 60s, go to Step 2.

2. Collect alarm information and configuration information, and then contact technical support personnel.

3. End.