IFPDT_1.3.6.1.4.1.2011.5.25.157.2.301 hwOutputDiscardNotice

Description

IFPDT/4/OUTDISCARDEXCEED:OID [OID] Interface output discard exceed the trap threshold. (InterfaceIndex=[INTEGER], InterfaceName=[OCTET], Statistics=[COUNTER64], TrapThreshold=[ULONG], TrapInterval=[ULONG](s))

The number of discarded outgoing packets on an interface due to a network congestion exceeds the threshold.

Attribute

Alarm ID	Alarm Severity	Alarm Type
1.3.6.1.4.1.2011.5.25.157.2.301	Warning	qualityOfServiceAlarm(3)

Parameters

Name	Meaning
OID	Indicates the MIB object ID of the alarm.
InterfaceIndex	Interface index.
InterfaceName	Interface name.
Statistics	Statistics on discarded packets due to a congestion.
TrapThreshold	Threshold for discarded packets due to a congestion.
TrapInterval	Interval for collecting statistics on discarded packets due to a congestion.

Impact on the System

If this alarm is reported, a serious congestion occurs on the network. If the congestion is not processed in time, more packets will be discarded on the network, affecting normal operation of services.

Possible Causes

The number of discarded outgoing packets on an interface due to a network congestion exceeds the threshold.

Procedure

Run the display this command in the interface view to check whether rate limit is performed in the outbound direction of the interface.
- If so, go to step 2.
- If not, go to step 3.
Run the qos lr outbound cir cir-value [ cbs cbs-value ] command in the interface view to modify the rate limit configuration or run the undo qos lr outbound command in the interface view to delete the rate limit configuration. Then check whether the alarm is cleared.
- If so, no further action is required.
- If not, go to step 3.
Run the trap-threshold { input-discard | output-discard } threshold threshold-value command in the interface view to modify the alarm threshold for the number of discarded packets on the interface due to a congestion or run the trap-threshold { input-discard | output-discard } interval interval-value command in the interface view to modify the interval for reporting an alarm if packets are discarded on the interface due to a congestion depending on the services on the device. Then check whether the alarm is cleared.
- If so, no further action is required.
- If not, go to step 4.
Obtain log and configuration files and contact technical support personnel.