NAT_1.3.6.1.4.1.2011.5.25.240.2.2 hwCGNGloablV4SessionNumAlarm

Trap Buffer Description

The usage of IPv4 sessions reached the threshold. (Usage = [Usage],Threshold = [Threshold],Slot = [Slot],Cpu = [Cpu])

The usage of IPv4 sessions on the SPU processing engine exceeded the threshold.

In VS mode, this trap is supported only by the admin VS.

This alarm is supported only on NetEngine 8000 F1A.

Trap Attributes

Trap Attribute	Description
Alarm or Event	Alarm
Trap Severity	Warning
Mnemonic Code	hwCGNGloablV4SessionNumAlarm
Trap OID	1.3.6.1.4.1.2011.5.25.240.2.2
MIB	HUAWEI-DSLITE-MIB
Alarm ID	0x00F1000f
Alarm Name	hwCGNGloablV4SessionNumAlarm
Alarm Type	communicationsAlarm
Raise or Clear	Raise
Match trap	NAT_1.3.6.1.4.1.2011.5.25.240.2.11 hwCGNGloablV4SessionNumResumeAlarm

Trap Buffer Parameters

Parameter	Description
Usage	Usage of existing IPv4/IPv6 session numbers.
Threshold	Threshold of the proportion of configured IPv4/IPv6 sessions to the total supported ones on a service board's forwarding engine.
Slot	Slot ID of a service board.
Cpu	CPU ID of the service board.

VB Parameters

VB OID	VB Name	VB Index
1.3.6.1.4.1.2011.5.25.240.1.2.12	hwCGNAlarmSessionNum	-
1.3.6.1.4.1.2011.5.25.240.1.2.8	hwVSUAlarmThreshold	-
1.3.6.1.4.1.2011.5.25.240.1.2.10	hwVSUAlarmSlot	-
1.3.6.1.4.1.2011.5.25.240.1.2.11	hwVSUAlarmCpu	-

Impact on the System

When the alarm is generated, the services are not affected. If session creation continues and the number of created sessions reaches the maximum number allowed by the CGN device, new sessions fail to be created.

Possible Causes

The proportion of configured IPv4/IPV6 sessions to the total supported ones on a service board's forwarding engine reached a specified threshold.

Procedure

1. Run the display nat session table command to check whether the number of sessions established on the CGN device reaches the allowed maximum number of IPv4/IPv6 sessions.

If the number of IPv4/IPv6 sessions reaches the configured maximum number, go to Step 2.
If the number of IPv4/IPv6 sessions does not reach the configured maximum number, go to Step 3.

2. Run the nat alarm session-number threshold command in the system view to set a larger alarm threshold. Then check whether the alarm is cleared.

If the alarm is cleared, go to Step 4.
If the alarm persists, go to Step 3.

3. Collect trap, log, and configuration information, and contact technical support.

4. End.