oam-bind efm interface efm interface

Function

The oam-bind efm interface efm interface command enables bidirectional fault notification between EFM modules.

The undo oam-bind efm interface efm interface command cancels the configuration.

By default, bidirectional transmission of information about a fault between EFM OAM sessions is not configured.

Only the S5720I-SI, S5720S-SI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5730S-EI, S5730-SI, S6720-LI, S6720S-LI, S6720S-SI, and S6720-SI support this function.

Format

oam-bind efm interface interface-type interface-number efm interface interface-type interface-number

undo oam-bind efm interface interface-type interface-number efm interface interface-type interface-number

Parameters

Parameter	Description	Value
interface-type interface-number	Specifies the type and the number of an interface configured with bidirectional fault notification between EFM modules. interface-type specifies the interface type. interface-number specifies the interface number.	-

Parameter

Description

Value

interface-type interface-number

Specifies the type and the number of an interface configured with bidirectional fault notification between EFM modules.

interface-type specifies the interface type.
interface-number specifies the interface number.

Views

OAM management view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

If EFM is deployed at both sides of a device, associate EFM modules on the device to ensure reliable service transmission.

Association between EFM and EFM is bidirectional. EFM modules notify each other of faults.

The following commands are used to associate EFM modules:

oam-bind efm interface efm interface
oam-bind ingress efm interface egress efm interface

Choose the preceding commands in different scenarios according to Table 1.

**Table 1** Association between EFM modules
Scenario	Configuration Solution 1	Configuration Solution 2
Bidirectional fault notification between EFM modules	Run the oam-bind efm interface efm interface command.	Use the following commands: Run the oam-bind ingress efm interface egress efm interface command to configure EFM for the link at one side of the device to notify EFM for the link at the other side of the device of faults. ingress efm interface interface-type interface-number specifies the EFM-capable interface on the link at one side of the device, and egress efm interface interface-type interface-number specifies the EFM-capable interface on the link at the other side of the device. Run the oam-bind ingress efm interface egress efm interface command to configure EFM for the link at one side of the device to notify EFM for the link at the other side of the device of faults. ingress efm interface interface-type interface-number specifies the EFM-capable interface on the link at one side of the device, and egress efm interface interface-type interface-number specifies the EFM-capable interface on the link at the other side of the device.
Unidirectional fault notification between EFM sessions	Choose either of the following commands based on the transmission direction: Run the oam-bind ingress efm interface egress efm interface command to configure EFM for the link at one side of the device to notify EFM for the link at the other side of the device of faults. ingress efm interface interface-type interface-number specifies the EFM-capable interface on the link at one side of the device, and egress efm interface interface-type interface-number specifies the EFM-capable interface on the link at the other side of the device. Run the oam-bind ingress efm interface egress efm interface command to configure EFM for the link at one side of the device to notify EFM for the link at the other side of the device of faults. ingress efm interface interface-type interface-number specifies the EFM-capable interface on the link at one side of the device, and egress efm interface interface-type interface-number specifies the EFM-capable interface on the link at the other side of the device.	None

Prerequisites

The following conditions must be met:

EFM OAM has been enabled on specified interfaces.
Two EFM OAM sessions have been associated with each other. When an EFM OAM session is associated with another EFM OAM session, the EFM OAM session cannot be associated with other EFM OAM sessions.

Example

# Configure bidirectional fault notification between EFM OAM sessions.

<HUAWEI> system-view
[HUAWEI] oam-mgr
[HUAWEI-oam-mgr] oam-bind efm interface gigabitethernet0/0/1 efm interface gigabitethernet0/0/2