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Alarm Handling

S9300, S9300E, and S9300X V200R010C00

This document provides the explanations, causes, and recommended actions of alarms on the product.
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TUNNEL_1.3.6.1.4.1.2011.5.12.7.1.4.2 hwMplsPsSwitchWtoP

TUNNEL_1.3.6.1.4.1.2011.5.12.7.1.4.2 hwMplsPsSwitchWtoP

Description

TUNNEL/4/TUNN_PS_WTOP: OID [OID] switched to protection tunnel. (IfIndex=[INTEGER], WorkTunnel=[OCTET], WorkTunnelId=[INTEGER], ProtectionTunnel=[octet], ProtectionTunnelId=[INTEGER], SwitchResult=[INTEGER], WorkTunnelState=[INTEGER], ProtTunnelState=[INTEGER], LocalState=[INTEGER])

The protection group switched from the work tunnel to the protection tunnel.

Attribute

Alarm ID Alarm Severity Alarm Type
1.3.6.1.4.1.2011.5.12.7.1.4.2 Warning processingErrorAlarm(4)

Parameters

Name Meaning

OID

Indicates the MIB object ID of the alarm.

IfIndex

Index of the working tunnel

WorkTunnel

Name of the working tunnel.

WorkTunnelId

Tunnel ID of the working tunnel

ProtectionTunnel

Name of the protection tunnel.

ProtectionTunnelId

Tunnel ID of the protection tunnel.

SwitchResult

Result of the switchover. The value 2 indicates that the work tunnel switches to the protection tunnel.

WorkTunnelState

Status of the work tunnel.

ProtTunnelState

Status of the protection tunnel.

LocalState

Status of local node.

Impact on the System

When the primary tunnel is faulty, traffic is switched from the primary tunnel to the backup tunnel.

Possible Causes

1. The interface along the TE tunnel was shut down.

2. Interfaces along the TE tunnel were not enabled with MPLS, MPLS TE, or RSVP-TE.

3. The tunnel configurations such as destination address, type, or TE tunnel ID were incorrect or were not committed.

4. The explicit path was not the expected one.

5. A fault was detected by an OAM session or a BFD session.

6. The TE tunnel interface failed to forward packets.

Procedure

  1. For an RSVP-TE tunnel, run the display mpls te tunnel path command to view information about interfaces along a tunnel. For a static tunnel, run the display current-configuration command to view information about interfaces along the static LSP.
  2. Run the display this command in the view of an interface along the TE tunnel to check whether the interface goes Up and whether MPLS, MPLS TE, and RSVP-TE are enabled.

    • If the interface goes Down, run the undo shutdown command.
    • If MPLS, MPLS TE, and RSVP-TE are disabled, run the mpls, mpls te, and mpls rsvp-te commands in sequence.
    • If the fault is rectified, go to Step 9. If the fault persists, go to Step 3.

  3. Run the display this command in the tunnel interface view to check whether an explicit path is configured through the mpls te path explicit-path path-name command.

    • If so, go to Step 4.
    • If not, go to Step 5.

  4. Run the display explicit-path path-name command to view the address of each hop along the explicit path. Using the address of each hop along the explicit path, run the display ip interface interface-type interface-number command to check whether the interface along the primary tunnel is Up.

    • If all interfaces are Up, go to Step 6.
    • If an interface is Down, run the undo shutdown command.
    • If the fault is rectified, go to Step 9. If the fault persists, go to Step 6.

  5. Run the display this command in the tunnel interface view to check whether the destination address, tunnel type, and TE tunnel ID are correct and whether the mpls te commit command is run.

    • If there is an incorrect configuration, run one of the following commands to correct the configuration:
      1. Run the tunnel-protocol mpls te command to configure a correct tunnel type.
      2. Run the destination dest-ip-address command to specify a correct destination address of the tunnel.
      3. Run the mpls te tunnel-id tunnel-id command to specify a correct tunnel ID.
    • If the configurations are not committed, run the mpls te commit command.
    • If the fault is rectified, go to Step 9. If the fault persists, go to Step 6.

  6. Run the ping lsp te tunnel interface-number command to check connectivity of the tunnel LSP.

    • If the LSP is reachable, go to Step 8.
    • If the LSP is unreachable, go to Step 7.

  7. Run the display mpls oam ingress all command to view OAM detection results. Alternatively, run the display bfd session all command to view BFD detection results.

    • If an OAM session or a BFD session is Down, refer to the troubleshooting manuals for OAM or BFD.
    • If the OAM sessions and BFD sessions are Up, go to Step 8.

  8. Collect alarm information and configuration information, and then contact technical support personnel.
  9. End.
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Updated: 2019-08-21

Document ID: EDOC1000142054

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