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Alarm Handling

AR100, AR120, AR160, AR1200, AR2200, AR3200, and AR3600 V300R003

This document provides the trap description, attributes, parameters, impact on the system, possible causes, procedures, and references. This document provides a complete set of traps, through which intended readers are kept of the running status of the device so as to locate faults.
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SECE_1.3.6.1.4.1.2011.5.25.165.2.2.1.2 hwStrackIfVlanInfo

SECE_1.3.6.1.4.1.2011.5.25.165.2.2.1.2 hwStrackIfVlanInfo

Description

SECE/4/STRACKPORT: OID=[oid] Attack occurred.(Interface=[STRING], CVLAN=[ULONG], PVLAN=[ULONG], EndTime=[STRING], TotalPackets=[ULONG])

The system detects an attack on an interface.

Attribute

Alarm ID Alarm Severity Alarm Type
1.3.6.1.4.1.2011.5.25.165.2.2.1.2 Warning securityServiceOrMechanismViolation(10)

Parameters

Name Meaning
OID

Indicates the MIB object ID of the alarm.

Interface Indicates the access interface of the attacker.
CVLAN Indicates the outer VLAN ID of the attacker.
PVLAN Indicates the inner VLAN ID of packets sent from the attacker.
EndTime Indicates the end time of the attack.
TotalPackets Indicates the number of packets received from the attacker.

Impact on the System

The CPU is busy processing attack packets. As a result, normal service packets cannot be processed in time or even discarded.

Possible Causes

The number of packets with the specified interface and VLAN ID sent to the CPU exceeds the alarm threshold.

Procedure

  1. Run the display auto-defend attack-source detail command to check the possible attack source on an interface and check whether the interface is normal according to the packet increase rate in entries.
  2. If an attack is initiated by a user and the user is the only one connected to the interface, you can shut down the interface and check whether the interface is normal.
  3. If the interface is connected to multiple users and some users initiate attacks, you can configure attack source tracing and set the action taken on attack packets to deny, or configure a traffic policy to discard attack packets.
  4. If only entries exist on the interface or entries cannot be determined, collect device configurations, alarms, and logs, and then contact technical support personnel.
  5. End.

Related Information

None

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Updated: 2019-03-06

Document ID: EDOC1100041475

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