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Alarm Handling

S9300, S9300E, and S9300X V200R013C00

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

LOOPDETECT

LOOPDETECT_1.3.6.1.4.1.2011.5.25.174.3.5 hwPortL2vpnLoopDetect

Description

LOOPDETECT/4/DetectLoop: OID [OID] The port detected L2VPN loop. (InterfaceIndex=[INTEGER], InterfaceName=[OCTET], VsiName=[OCTET], LoopPeVlan=[OCTET], LoopCeVlan=[OCTET])

The device detected a loop on the L2VPN network connected to its interface.

Attribute

Alarm ID Alarm Severity Alarm Type
1.3.6.1.4.1.2011.5.25.174.3.5 Warning

environmentalAlarm(6)

Parameters

Name Meaning

OID

Indicates the MIB object ID of the alarm.

InterfaceIndex

Indicates the interface index.

InterfaceName

Indicates the interface name.

VsiName

Indicates the name of the VSI that is bound to the interface.

LoopPeVlan

Indicates the outer ID of the VLAN in which a loop occurs.

LoopCeVlan

Indicates the inner ID of the VLAN in which a loop occurs.

Impact on the System

After the interface is blocked, all the traffic except protocol packets will be blocked.

Possible Causes

Cause 1: Two interfaces on the CE are connected to the same PE, leading to an L2VPN loop.

Cause 2: One interface on the CE is dual homed to the same VPLS network, leading to an L2VPN loop.

Procedure

  1. Find the VSI name and VLAN IDs related to the L2VPN loop according to the alarm information. Check whether the loop occurs on the L2VPN network to which the interface connects. If so, eliminate the loop.

LOOPDETECT_1.3.6.1.4.1.2011.5.25.174.3.6 hwPortL2vpnLoopDetectRecovery

Description

LOOPDETECT/4/LoopResume: OID [OID] The detected L2VPN loop is removed. (InterfaceIndex=[INTEGER], InterfaceName=[OCTET])

The L2VPN loop detected on the interface was eliminated.

Attribute

Alarm ID Alarm Severity Alarm Type
1.3.6.1.4.1.2011.5.25.174.3.6 Warning environmentalAlarm(6)

Parameters

Name Meaning

OID

Indicates the MIB object ID of the alarm.

InterfaceIndex

Indicates the interface index.

InterfaceName

Indicates the interface name.

Impact on the System

Services on the interface restore normal.

Possible Causes

The L2VPN loop detected on the interface was eliminated.

Procedure

  1. This is a clear alarm and no action is required.
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Updated: 2019-04-09

Document ID: EDOC1100065855

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