TWAMP_1.3.6.1.4.1.2011.5.25.333.1.4.5 hwTwampTwoWayJitterExceed

Trap Buffer Description

The two-way jitter of the TWAMP test instance exceeded the upper threshold in three consecutive test intervals. (Test SessionId=[sessionId], Value=[Value], UpperLimitThreshold=[UpperLimitThreshold], LowerLimitThreshold=[LowerLimitThreshold], Sender IP=[sender-address], Reflector IP=[reflector-address], Sender Port=[sender-port], Reflector Port=[reflector-port], VPN Instance=[vpn-name])

The two-way jitter of a TWAMP test instance exceeded the threshold in three consecutive measurement periods.

Trap Attributes

Trap Attribute	Description
Alarm or Event	Alarm
Trap Severity	Warning
Mnemonic Code	hwTwampTwoWayJitterExceed
Trap OID	1.3.6.1.4.1.2011.5.25.333.1.4.5
MIB	HUAWEI-TWAMP-MIB
Alarm ID	0x00F1005f
Alarm Name	TWAMP_TWOWAY_JITTER
Alarm Type	qualityOfServiceAlarm
Raise or Clear	Raise
Match trap	TWAMP_1.3.6.1.4.1.2011.5.25.333.1.4.6 hwTwampTwoWayJitterRecovery

Trap Buffer Parameters

Parameter	Description
sessionId	TWAMP Light test session ID.
Value	Jitter value
UpperLimitThreshold	The jitter trigger-alarm threshold value.
LowerLimitThreshold	The clear-alarm jitter threshold value.
sender-address	IP address of the sender.
reflector-address	IP address of the reflector.
sender-port	Port number of the sender.
reflector-port	Port number of the reflector.
vpn-name	Indicates the VPN instance name.

VB Parameters

VB OID	VB Name	VB Index
1.3.6.1.4.1.2011.5.25.333.1.1.12.1.1	hwTwampTwoWayJitterValue	hwTwampSenderId
1.3.6.1.4.1.2011.5.25.333.1.1.12.1.2	hwTwampTwoWayJitterValueUpperLimitThreshold	hwTwampSenderId
1.3.6.1.4.1.2011.5.25.333.1.1.12.1.3	hwTwampTwoWayJitterValueLowerLimitThreshold	hwTwampSenderId
1.3.6.1.4.1.2011.5.25.333.1.1.3.1.3	hwTwampSenderLocalIpAddress	hwTwampSenderId
1.3.6.1.4.1.2011.5.25.333.1.1.3.1.5	hwTwampSenderRemoteIpAddress	hwTwampSenderId
1.3.6.1.4.1.2011.5.25.333.1.1.3.1.6	hwTwampSenderLocalUDPPort	hwTwampSenderId
1.3.6.1.4.1.2011.5.25.333.1.1.3.1.7	hwTwampSenderRemoteUDPPort	hwTwampSenderId
1.3.6.1.4.1.2011.5.25.333.1.1.3.1.8	hwTwampSenderVrfName	hwTwampSenderId

Impact on the System

A jitter indicates a delay change.

A severe jitter affects the services that have high requirements on real-time transmission, such as video and voice services.

Possible Causes

Cause 1: The network bandwidth usage reached or exceeded the preset bandwidth threshold.
Cause 2: The service traversed a large number of NEs.

Procedure

Cause 1: The network bandwidth usage reached or exceeded the preset bandwidth threshold.

1. Check whether the network bandwidth usage reached or exceeded the preset bandwidth threshold.

If yes, expand the capacity.
If not, go to step 2.

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

Cause 2: The service traversed a large number of NEs.

1. Check whether the service traversed a large number of NEs.

If yes, perform rerouting. Alternatively, delete the original path and establish a new one.
If not, go to step 2.

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