mpls oam l2vc enable

Function

The mpls oam l2vc enable command enables MPLS OAM to monitor a PW.

The undo mpls oam l2vc enable command disables MPLS OAM from monitoring a PW.

By default, MPLS OAM is disabled from monitoring a PW.

Format

mpls oam l2vc enable send peer-ip peer-ip vc-id vc-id vc-type vc-type

mpls oam l2vc enable receive peer-ip peer-ip vc-id vc-id vc-type vc-type

undo mpls oam l2vc enable send peer-ip peer-ip vc-id vc-id vc-type vc-type

undo mpls oam l2vc enable receive peer-ip peer-ip vc-id vc-id vc-type vc-type

Parameters

Parameter	Description	Value
peer-ip peer-ip	Specifies the destination IP address of an L2VC.	The value is in dotted decimal notation.
vc-id vc-id	Specifies the ID of an L2VC.	The value is an integer ranging from 1 to 4294967295.
vc-type vc-type	Specifies the type of an 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.
send	Enables an OAM entity to send OAM packets.	-
receive	Enables an OAM entity to receive OAM packets.	-

Views

MPLS-OAM view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
tpoam	write

Usage Guidelines

Usage Scenario

MPLS OAM can monitor PWs, which can be dynamic PWs, static PWs, SS-PWs, or MS-PWs.

Prerequisites

MPLS OAM parameters have been configured for a PW using the mpls oam l2vc command.

Precautions

If auto-protocol has been specified in the mpls oam l2vc command, you do not need to run the mpls oam l2vc enable command.

If auto-protocol is not specified, you must specify send and receive in the mpls oam l2vc enable command to enable an OAM entity to send and receive OAM packets for monitoring a PW.

The nodes at both ends of a PW that OAM monitors has the following abilities:

When the local end is enabled to send OAM packets and the peer end is enabled to receive OAM packets, the peer end initiates detection for a unidirectional PW but does not send BDI packets.
When the local end is enabled to receive OAM packets and the peer end is enabled to send OAM packets, the local end initiates detection for a unidirectional PW but does not send BDI packets.
When the local end is enabled to send OAM packets and the peer end is enabled to both send and receive OAM packets, the peer end initiates detection for a unidirectional PW and is able to send BDI packets, whereas the local end cannot receive the BDI packets.
When the local end is enabled to send and receive OAM packets and the peer end is enabled to send OAM packets, the local end initiates detection for a unidirectional PW and is able to send BDI packets, whereas the peer end cannot receive the BDI packets.
When the local and peer ends are enabled to both send and receive OAM packets, OAM is able to monitor the bidirectional PW.

Example

# Enable an OAM entity to send OAM packets for monitoring a specified PW.

<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 enable send peer-ip 2.2.2.2 vc-id 100 vc-type ethernet

# Enable an OAM entity to receive OAM packets for monitoring a specified PW.

<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 enable receive peer-ip 2.2.2.2 vc-id 100 vc-type ethernet