mpls oam l2vc lost-measure single-ended proactive

Function

The mpls oam l2vc lost-measure single-ended proactive command enables proactive single-ended frame loss measurement (LM) on a PW side.

The undo mpls oam l2vc lost-measure single-ended proactive command deletes the configuration.

By default, proactive single-ended frame loss measurement (LM) is not enabled on the PW side.

Format

mpls oam l2vc lost-measure single-ended proactive [ exp exp-value ] peer-ip peer-ip vc-id vc-id vc-type vc-type

undo mpls oam l2vc lost-measure single-ended proactive peer-ip peer-ip vc-id vc-id vc-type vc-type

Parameters

Parameter	Description	Value
exp exp-value	Sets a priority value for LMMs.	The value is an integer ranging from 0 to 7. The larger the value, the higher the priority. The default value is 7.
peer-ip peer-ip	Specifies the destination IP address of a PW.	The value is in dotted decimal notation.
vc-id vc-id	Specifies the PW ID.	The value is an integer ranging from 1 to 4294967295.
vc-type vc-type	Specifies the type of a remote L2VC.	Encapsulation types supported: Other encapsulation types: cep: This encapsulation type is used for CEP services. ethernet: This encapsulation type is used when Ethernet packets do not carry VLAN information. ip-interworking: This encapsulation type is used for interworking between Huawei devices. ip-layer2: This encapsulation type is used for interworking between Huawei devices and non-Huawei devices. vlan: This encapsulation type is used when Ethernet packets carry VLAN information.

Views

MPLS-OAM view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
tpoam	write

Usage Guidelines

Usage Scenario

Packet LM is a performance monitoring function provided by MPLS-TP. Single-ended frame LM is implemented on two MEPs over an LSP. The measurement results include the following data:

Near-end frame loss: indicates the number and percentage of dropped frames that are sent from an RMEP to a MEP.
Far-end frame loss: indicates the number and percentage of dropped frames that are sent from a MEP to an RMEP.

Prerequisites

MPLS and MPLS OAM have been enabled globally.
The MPLS-OAM view has been displayed.
The PW that MPLS OAM monitors has been established.

Precautions

This function must be enabled on both the local and remote ends to display correct statistics about proactive single-ended frame loss measurement on the local end.
The system can display a maximum of 60 proactive single-ended frame LM records. If the number of proactive single-ended frame LM records exceeds 60, the earlier records are overwritten.

Example

# Enables proactive single-ended frame loss measurement (LM) on the PW side and set the priority value for LMMs to 1.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] mpls oam
[*HUAWEI-mpls] quit
[*HUAWEI] mpls l2vpn
[*HUAWEI-l2vpn] quit
[*HUAWEI] interface GigabitEthernet 0/1/0
[*HUAWEI-GigabitEthernet0/1/0] mpls l2vc 2.2.2.2 100
[*HUAWEI-GigabitEthernet0/1/0] quit
[*HUAWEI] mpls-oam
[*HUAWEI-mpls-oam] mpls oam l2vc lost-measure single-ended proactive exp 1 peer-ip 2.2.2.2 vc-id 100 vc-type ethernet