No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


Alarm Handling

S9300, S9300E, and S9300X V200R010C00

This document provides the explanations, causes, and recommended actions of alarms on the product.
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
L2V_1. hwPWVcSwitchWtoP

L2V_1. hwPWVcSwitchWtoP


L2V/4/PWE3VC_W2P_T:OID [oid] The status of the PWE3 VC turned protecting from working. ( VcId=[GAUGE], VcType=[INTEGER], CtrlWord=[INTEGER], SecondaryPwId=[GAUGE], HWL2VpnStateChangeReason=[INTEGER], InterfaceName=[STRING])

Indicates that a PW changes from the primary state to the secondary state.


Alarm ID Alarm Severity Alarm Type




Name Meaning
oid Indicates the MIB object ID of the alarm.
VcId Indicates the ID of a VC.

Indicates the type of a VC:

  • 0: Initial value
  • 1: FR
  • 2: ATM AAL5
  • 3: ATM cell relay
  • 4: VLAN
  • 5: Ethernet
  • 6: HDLC
  • 7: PPP
  • 9: ATM cell VCC
  • 10: ATM cell VPC
  • 11: IP-layer 2 (used for heterogeneous IP-interworking between Huawei devices and non-Huawei devices)
  • 12: ATM, 1-to-1 VCC cell mode
  • 13: ATM, 1-to-1 VPC cell mode
  • 14: ATM, AAL5 PDU VCC Transport
  • 64: Heterogeneous IP-interworking

Indicates whether the control word is enabled:

  • 1: enabled
  • 2: disabled
SecondaryPwId Indicates the remote CE ID of the VC in the Protecting state.
HWL2VpnStateChangeReason Indicates the cause for the VC status change. For details, refer to hwPwStateChangeReason in the appendix of HUAWEI-PWE3-MIB.
InterfaceName Indicates the interface name.

Impact on the System

Packet loss in millisecond may occur in the switching process. The packet loss, however, affects little to the PWE3 service.

Possible Causes

The VLL service is switched from the primary PW to the secondary PW.


  1. Rectify the fault according to the solution to the hwPWVcDown trap. Then, check whether the fault is rectified.

    • If so, go to Step 3.
    • If not, go to Step 2.

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

Document ID: EDOC1000142054

Views: 189473

Downloads: 44

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Previous Next