display l2vpn error discard

Function

The display l2vpn error discard command displays information about signaling messages discarded by the L2VPN component.

Format

display l2vpn error discard

Parameters

None

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
l2vpn	read

Usage Guidelines

Usage Scenario

In a scenario in which an L2VPN service, such as CCC and VPWS, is configured, if a PW is correctly configured but the PW cannot go Up, run the display l2vpn error discard command to check whether the L2VPN component discards signaling messages. If the L2VPN component discards signaling messages, you can analyze reasons based on the discarded original signaling messages displayed in the command output. The command displays only the latest 10 discarded signaling messages.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display information about signaling messages discarded by the L2VPN component.

<HUAWEI> display l2vpn error discard
L2VPN Discard Info Counts: total 1 records have been recorded.
Record begin time: 2012/07/06 05:48:22
  peerIp         :1.1.1.1
  pwId           :100
  pwType         :vlan
  message type   :label mapping message
  message source :receive message from LDC
  discard reason :PW status TLV type is error
  discard time   :2012/07/06 05:48:22
  discard Message: 
  00 01 01 01 01 02 02 03 01 05 06 04 02 01 02 03 04
  00 01 01 01 01 02 02 03 01 05 06 04 02 01 02 03 04
  00 01 01 01 01 02 02 03 01 05 06 04 02 01 02 03 04
  00 01 01 01 01 02 02 03 01 05 06 04 02 01 02 03 04
  00 01 01 01 01 02 02 03 01 05 06 04 02 01 02 03 04

**Table 1** Description of the **display l2vpn error discard** command output
Item	Description
discard reason	Reason for discarding a signaling message: Message type is error. Message length is error. FEC TLVtype is error. FEC TLV length is error. PW status TLV type is error. PW status TLV length is error. Label TLV type is error. Label TLV length is error. SPE pwId TLV length is error. SPE peerIp TLV length is error. Sub TLV type is error. Sub TLVlength is error. PW status TLV is null. PWID FEC type is error. PWID FEC length is error. UBIT type is error. LDP status code is error. MAC address length is error. LDP status code length is error. PW status code length is error. Prefix FEC length is errpr. Address family is error.
discard time	Time when the signaling message is discarded.
discard Message	Discarded original signaling message.
L2VPN Discard Info Counts	Total number of discarded signaling messages.
Record begin time	Time when the first signaling message is discarded.
peerIp	Peer IP address of the discarded signaling message.
pwId	PW ID of the discarded signaling message.
pwType	PW type of the discarded signaling message.
message type	Type of the discarded signaling message: Notification message. MAC Withdraw message. Label Mapping message. Label Request message. Label Withdraw message. Label Release message.
message source	Source of the discarded signaling message: receive message from L2vpn: The discarded message is from the L2VPN. receive message from LDC: The discarded message is from the LDC. receive message from HAI: The discarded message is from the HAI.