mpls oam bidirectional-tunnel enable

Function

The mpls oam bidirectional-tunnel enable command enables MPLS OAM to monitor static bidirectional co-routed LSPs.

The undo mpls oam bidirectional-tunnel enable command disables MPLS OAM from monitoring static bidirectional co-routed LSPs.

By default, MPLS OAM is disabled monitoring static bidirectional co-routed LSPs.

Format

mpls oam bidirectional-tunnel enable { send | receive } { tunnel-type tunnel-number | tunnel-name }

undo mpls oam bidirectional-tunnel enable { send | receive } { tunnel-type tunnel-number | tunnel-name }

Parameters

Parameter	Description	Value
send	Enables a local device to send MPLS OAM packets.	-
receive	Enables a local device to receive MPLS OAM packets.	-
tunnel-type	Specifies the type of a tunnel.	-
tunnel-number	Specifies the number of a tunnel.	The value is a string of 1 to 63 case-sensitive characters, spaces not supported.
tunnel-name	Specifies the name of a tunnel.	The value is a string of 1 to 63 case-sensitive characters, spaces not supported.

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 the connectivity of static bidirectional co-routed LSPs and is widely used in IPRAN scenarios.

The mpls oam bidirectional-tunnel command sets MPLS OAM parameters. The auto-protocol parameter configured in that command enables the OAM auto protocol. If that parameter is not configured, the mpls oam bidirectional-tunnel enable command must be run additionally with the following parameter combinations to enable MPLS OAM to monitor static bidirectional co-routed LSPs:

send is configured on the ingress, and receive is configured on the egress. These settings enable the ingress to send reverse defect indication (BDI) packets to monitor a unidirectional LSP to the egress.
receive is configured on the ingress, and send is configured on the egress. These settings enable the egress to send BDI packets to monitor a unidirectional LSP to the ingress.
send is configured on the ingress, and send and receive are configured on the egress. These settings enable the egress to send and receive BDI packets to monitor a unidirectional LSP to the ingress. Although the egress can also send BDI packets to the ingress, the ingress cannot receive them.
send and receive are configured on the ingress, and send is configured on the egress. These settings enable the ingress to send and receive BDI packets to monitor a unidirectional LSP to the egress. Although the ingress can also send BDI packets to the egress, the egress cannot receive them.
send and receive are configured on both the ingress and egress. These settings enable the ingress and egress to send and receive BDI packets to monitor a bidirectional LSP.

Prerequisites

MPLS OAM parameters have been configured using the mpls oam bidirectional-tunnel command with the auto-protocol parameter not specified.

Configuration Impact

To prevent detection errors, specify send and then receive when enabling MPLS OAM, or specify receive and then send when disabling MPLS OAM.

Example

# Enable MPLS OAM to monitor all static bidirectional co-routed LSPs.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] mpls oam
[*HUAWEI-mpls] mpls te
[*HUAWEI-mpls] quit
[*HUAWEI] interface tunnel 10
[*HUAWEI-Tunnel10] tunnel-protocol mpls te
[*HUAWEI-Tunnel10] mpls te signal-protocol cr-static
[*HUAWEI-Tunnel10] mpls te bidirectional
[*HUAWEI-Tunnel10] quit
[*HUAWEI] mpls-oam
[*HUAWEI-mpls-oam] mpls oam bidirectional-tunnel Tunnel 10 type ffd frequency 3
[*HUAWEI-mpls-oam] mpls oam bidirectional-tunnel enable send Tunnel 10