display mpls te tunnel bit-error-detection

Function

The display mpls te tunnel bit-error-detection command displays CR-LSP bit error status and BER information.

Format

display mpls te tunnel bit-error-detection [ [ tunnel-name tunnel-name ] | [ lsp-id ingress-lsr-id session-id local-lsp-id ] | [ lsr-role { ingress | egress } ] ]

display mpls te tunnel bit-error-detection [ [ tunnel-name tunnel-name ] | [ lsp-id ingress-lsr-id session-id local-lsp-id ] | [ lsr-role { ingress | egress } ] ] verbose

Parameters

Parameter	Description	Value
tunnel-name tunnel-name	Specifies the tunnel name.	The value is a string of 1 to 255 case-sensitive characters without spaces. The tunnel name specified here must be the same as that in the configuration file. When double quotation marks are used around the string, spaces are allowed in the string.
lsp-id	Specifies the ID of an LSP.	-
ingress-lsr-id	Specifies the ingress LSR ID of an LSP.	The value is in dotted decimal notation.
session-id	Specifies the session ID of an LSP.	The value is an integer ranging from 0 to 65535.
local-lsp-id	Specifies the local LSP ID.	The value is an integer ranging from 0 to 65535.
lsr-role	Specifies the role of the current node on an LSP.	-
ingress	Displays the bit error status and BER of the LSP that uses the current node as its ingress.	-
egress	Displays the bit error status and BER of the LSP that uses the current node as its egress.	-
verbose	Displays detailed LSP bit error status and BER information.	-

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
mpls-te	read

Usage Guidelines

Usage Scenario

If you want to view the bit error status and BER of an LSP, run this command on the ingress or egress of the LSP.

If you do not specify any parameter when running this command, the information about all LSPs with the current node as their ingresses or egresses is displayed.

Precautions

If you want to view section BERs, run this command on the egress of an LSP and specify verbose.

Example

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

# Display the bit error status and BER of a specified LSP that uses the current node as its ingress or egress.

<HUAWEI> display mpls te tunnel bit-error-detection lsp-id 1.1.1.1 1 4
BED-Rate(R/L): R - Remote BFD Session, L - Local BFD Session
--------------------------------------------------------------------------------
LSP-ID                      LSP-Type    BED-State BED-Rate(R/L) Tunnel-Name
--------------------------------------------------------------------------------
1.1.1.1:1:4                 Primary     Start            0/1e-1 Tunnel11

# Display the detailed bit error status and BER information of all LSPs that use the current node as their ingresses or egresses.

<HUAWEI> display mpls te tunnel bit-error-detection verbose
Tunnel-Name         : Tunnel11
     LSP-ID              : 10.1.1.1:1:32775
     LSP-Type            : Hot-Standby
     LSR-Role            : Ingress
     BED-State           : Stop
     Total BED-Rate(R/L) : 0/0
     Segment BED-Rate(L) :

     Tunnel-Name         : Tunnel10
     LSP-ID              : 10.2.12.1:1:6
     LSP-Type            : Primary
     LSR-Role            : Egress
     BED-State           : --
     Total BED-Rate(R/L) : 0/1e-1
     Segment BED-Rate(L) :
     ----------------------------------------
     LSR-ID              BED-Rate
     ----------------------------------------
     4.1.1.1                 1e-1
     ----------------------------------------

     Tunnel-Name         : Tunnel10
     LSP-ID              : 10.2.12.1:1:32779
     LSP-Type            : Hot-Standby
     LSR-Role            : Egress
     BED-State           : --
     Total BED-Rate(R/L) : 0/0
     Segment BED-Rate(L) :

     Tunnel-Name         : Tunnel11
     LSP-ID              : 10.1.1.1:1:4
     LSP-Type            : Primary
     LSR-Role            : Ingress
     BED-State           : Start
     Total BED-Rate(R/L) : 0/1e-1
     Segment BED-Rate(L) :

# Display the bit error status and BER information of all LSPs that use the current node as their ingresses or egresses.

<HUAWEI> display mpls te tunnel bit-error-detection
BED-Rate(R/L): R - Remote BFD Session, L - Local BFD Session
--------------------------------------------------------------------------------
LSP-ID                       LSP-Type    BED-State BED-Rate(R/L) Tunnel-Name
--------------------------------------------------------------------------------
5.5.5.5:1:67                 Primary     --               2e-2/0 Tunnel10
5.5.5.5:1:68                 Hot-Standby --                  0/0 Tunnel10
2.2.2.2:1:109                Primary     Start            2e-2/0 Tunnel10
2.2.2.2:1:110                Hot-Standby Stop                0/0 Tunnel10

**Table 1** Description of the **display mpls te tunnel bit-error-detection** command output
Item	Description
LSP-ID	LSP ID.
LSP-Type	LSP type: Primary. Hot-Standby.
BED-State	CR-LSP bit error status: Start: The CR-LSP is in the excessive BER state. Stop: The CR-LSP is in the normalized BER state. --: The CR-LSP does not encounter bit error events.
BED-Rate(R/L)	BER of the current LSP. "R" represents the BER obtained through the remote BFD session, and "L" represents the BER obtained through the local BFD session.
Tunnel-Name	Tunnel name.
LSR-Role	Role of the current node on a CR-LSP: Ingress. Egress.
Total BED-Rate(R/L)	Total BER of the current CR-LSP. "R" represents the BER obtained through the remote BFD session, and "L" represents the BER obtained through the local BFD session.
Segment BED-Rate(L)	Segment BER obtained from the local BFD session.
LSR-ID	LSR ID of the node on which the bit error event is detected.
BED-Rate	Bit error rate.