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S1700, S2720, S5700, and S6700 V200R019C10 Alarm Handling

This document provides the explanations, causes, and recommended actions of alarms on the product.

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IPCA

IPCA

IPCA_1.3.6.1.4.1.2011.5.25.328.2.1 hwIplpmGlobalLossRatioExceed

Description

IPCA/2/IPLPM_TRAP_GLOBAL_LOSSRATIO_EXCEED: OID [OID] The global packet loss ratio exceeded the upper threshold in five consecutive intervals. (PeriodHigh=[ULONG], PeriodLow=[ULONG], LossPkts=[COUNTER64], LossRatio=[LONG], PeriodNo=[COUNTER64])

In device packet loss measurement, the packet loss ratios in five consecutive intervals exceeded 5%.

Attribute

Alarm ID Alarm Severity Alarm Type

1.3.6.1.4.1.2011.5.25.328.2.1

Major

qualityOfServiceAlarm(3)

Parameters

Name Meaning

OID

Indicates the MIB object ID of the alarm.

PeriodHigh

Indicates the high bit in measurement interval number.

PeriodLow

Indicates the low bit in measurement interval number.

LossPkts

Indicates the number of packets lost.

PktLossRatio

Indicates the packet loss ratio.

PeriodNo

Indicates the measurement interval number.

Impact on the System

The forwarding performance of the device is affected.

Possible Causes

  • Packets received and sent by the device are not all known IP unicast packets. This alarm is generated if the device adds MPLS or VPN labels when forwarding known IP unicast packets.
  • Other causes are as follows: Packets are discarded by CAR or ACL, no route is found for the packets, IP packets are discarded due to TTL timeout, or invalid packets are discarded.

Procedure

  1. Check whether packets received and sent by the device are all known IP unicast packets.

    • If so, go to step 4.
    • If not, go to step 2.

  2. Check whether the device needs the MPLS or VPN service.

    • If so, this alarm is informational only, and no action is required. To avoid generating this alarm, delete the iPCA configuration on the device if possible.
    • If not, go to step 3.

  3. Delete the MPLS or VPN service from the device, and check whether the device generates a clear alarm IPCA_1.3.6.1.4.1.2011.5.25.328.2.2 hwIplpmGlobalLossRatioRecovery after 10 measurement intervals.

    • If so, no further action is required.
    • If not, go to step 4.

  4. For details about the packet loss causes and troubleshooting methods, see "Fault Locating Guide - Software Troubleshooting - Packet Loss" in the Huawei S Series Campus Switches Troubleshooting Guide. Check whether the device generates a clear alarm IPCA_1.3.6.1.4.1.2011.5.25.328.2.2 hwIplpmGlobalLossRatioRecovery after 10 measurement intervals.

    • If so, no further action is required.
    • If not, go to step 5.

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

Related Information

IPCA_1.3.6.1.4.1.2011.5.25.328.2.2 hwIplpmGlobalLossRatioRecovery

IPCA_1.3.6.1.4.1.2011.5.25.328.2.2 hwIplpmGlobalLossRatioRecovery

Description

IPCA/2/IPLPM_TRAP_GLOBAL_LOSSRATIO_RECOVERY: OID [OID] The global packet loss ratio does not reach the lower threshold in five consecutive intervals. (PeriodHigh=[ULONG], PeriodLow=[ULONG], LossPkts=[COUNTER64], LossRatio=[LONG], PeriodNo=[COUNTER64])

In device packet loss measurement, the packet loss ratios in five consecutive intervals are equivalent to or below 1%.

Attribute

Alarm ID Alarm Severity Alarm Type

1.3.6.1.4.1.2011.5.25.328.2.2

Major

qualityOfServiceAlarm(3)

Parameters

Name Meaning

[OID]

Indicates the MIB object ID of the alarm.

PeriodHigh

Indicates the high bits in measurement interval number.

PeriodLow

Indicates the low bits in measurement interval number.

LossPkts

Indicates the number of dropped packets.

LossRatio

Indicates the packet loss ratio.

PeriodNo

Indicates the measurement interval number.

Impact on the System

Services are not affected.

Possible Causes

In device packet loss measurement, when the packet loss ratios in five consecutive intervals are equivalent to or below the clear alarm threshold, this clear alarm is reported. The forwarding performance of the device is normal.

Procedure

  • This message is informational only, and no action is required.

Related Information

IPFPM_1.3.6.1.4.1.2011.5.25.328.2.1 hwIplpmGlobalLossRatioExceed

IPCA_1.3.6.1.4.1.2011.5.25.328.2.3 hwIplpmLinkForwardLossRatioExceed

Description

IPCA/2/IPLPM_TRAP_LINK_LOSSRATIO_EXCEED: OID [OID] The link packet loss ratio exceeded the upper threshold in five consecutive intervals.(IfIndex=[ULONG], IfIndex=[ULONG], PeriodHigh=[ULONG], PeriodLow=[ULONG], ForwardLossPkts=[COUNTER64], ForwardLossRatio=[LONG], QosQ0LossRatio=[LONG], QosQ1LossRatio=[LONG], QosQ2LossRatio=[LONG], QosQ3LossRatio=[LONG], QosQ4LossRatio=[LONG], QosQ5LossRatio=[LONG], QosQ6LossRatio=[LONG], QosQ7LossRatio=[LONG], UserQueLossRatio=[LONG], OutputLossRatio=[LONG], PeriodNo=[COUNTER64])

In direct link packet loss measurement, the packet loss ratios in five consecutive intervals exceed 5%.

Attribute

Alarm ID Alarm Severity Alarm Type

1.3.6.1.4.1.2011.5.25.328.2.3

Major

qualityOfServiceAlarm(3)

Parameters

Name Meaning

[OID]

Indicates the MIB object ID of the alarm.

IfIndex

Indicates the interface index.

IfIndex

Indicates the interface index.

PeriodHigh

Indicates the high bits in measurement interval number.

PeriodLow

Indicates the low bits in measurement interval number.

ForwardLossPkts

Indicates the number of lost packets in forward flows.

ForwardLossRatio

Indicates the packet loss ratio in forward flows.

QosQ0LossRatio

Indicates the packet loss ratio in queue 0.

QosQ1LossRatio

Indicates the packet loss ratio in queue 1.

QosQ2LossRatio

Indicates the packet loss ratio in queue 2.

QosQ3LossRatio

Indicates the packet loss ratio in queue 3.

QosQ4LossRatio

Indicates the packet loss ratio in queue 4.

QosQ5LossRatio

Indicates the packet loss ratio in queue 5.

QosQ6LossRatio

Indicates the packet loss ratio in queue 6.

QosQ7LossRatio

Indicates the packet loss ratio in queue 7.

UserQueLossRatio

Indicates the packet loss ratio in user queue.

OutputLossRatio

Indicates the packet loss ratio in the outbound direction.

PeriodNo

Indicates the measurement interval number.

Impact on the System

In direct link packet loss measurement, when the packet loss ratios in five consecutive intervals exceed the alarm threshold, this alarm is reported. The forwarding performance of the link is poor.

Possible Causes

  1. Packets on an interface are lost due to incorrect packet format.
  2. Packets are lost because the packet rate is higher than the maximum bandwidth on the link.
  3. The direct link is faulty.

Procedure

  • Check whether any packet is lost on the interface. Run the display iplpm loss-measure statistics port-flow interface command to check whether any packet is lost on an interface. If so, run the display interface command to find out the packet loss cause.
  • If not, run the display iplpm loss-measure statistics qos-que interface command to check whether packet loss occurs in a queue. If packet loss occurs in a queue, the link is congested. Increase bandwidth on the link to eliminate congestion.
  • If no packet loss occurs in the preceding situations, replace the cable.

Related Information

IPFPM_1.3.6.1.4.1.2011.5.25.328.2.4 hwIplpmLinkForwardLossRatioRecovery

IPCA_1.3.6.1.4.1.2011.5.25.328.2.4 hwIplpmLinkForwardLossRatioRecovery

Description

IPCA/2/IPLPM_TRAP_LINK_LOSSRATIO_RECOVERY: OID [OID] The link packet loss ratio does not reach the lower threshold in five consecutive intervals. (IfIndex=[ULONG], IfIndex=[ULONG], PeriodHigh=[ULONG], PeriodLow=[ULONG], ForwardLossPkts=[COUNTER64], ForwardLossRatio=[LONG], PeriodNo=[COUNTER64])

In direct link packet loss measurement, the packet loss ratios in five consecutive intervals are equivalent to or below 1%.

Attribute

Alarm ID Alarm Severity Alarm Type

1.3.6.1.4.1.2011.5.25.328.2.4

Major

qualityOfServiceAlarm(3)

Parameters

Name Meaning

[OID]

Indicates the MIB object ID of the alarm.

IfIndex

Indicates the interface index.

IfIndex

Indicates the interface index.

PeriodHigh

Indicates the high bits in measurement interval number.

PeriodLow

Indicates the low bits in measurement interval number.

ForwardLossPkts

Indicates the number of lost packets in forward flows.

ForwardLossRatio

Indicates the packet loss ratio in forward flows.

PeriodNo

Indicates the measurement interval number.

Impact on the System

Services are not affected.

Possible Causes

In direct link packet loss measurement, when the packet loss ratios in five consecutive intervals are equivalent to or below the clear alarm threshold, this clear alarm is reported. The forwarding performance of the link is normal.

Procedure

  • This message is informational only, and no action is required.

Related Information

IPFPM_1.3.6.1.4.1.2011.5.25.328.2.3 hwIplpmLinkForwardLossRatioExceed

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Updated: 2022-05-25

Document ID: EDOC1100127008

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