transmit-atm-cells

Function

The transmit-atm-cells command configures the maximum number of ATM cells to be encapsulated into a packet that can be sent by a device in a PW template.

The undo transmit-atm-cells command deletes the maximum number of ATM cells to be encapsulated into a packet that can be sent by a device in a PW template.

By default, the maximum number of ATM cells to be encapsulated into a packet that can be sent by a device is not configured.

Format

transmit-atm-cells transmit-atm-cells-value

undo transmit-atm-cells

Parameters

Parameter	Description	Value
transmit-atm-cells-value	Specifies the maximum number of ATM cells to be encapsulated into a packet that can be sent by a device.	The value is an integer ranging from 1 to 28. The default value is 0.

Parameter

Description

Value

transmit-atm-cells-value

Specifies the maximum number of ATM cells to be encapsulated into a packet that can be sent by a device.

The value is an integer ranging from 1 to 28. The default value is 0.

Views

PW template view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
l2vpn	write

Usage Guidelines

Usage Scenario

When VPWS PWs are used to carry ATM services, the maximum number of ATM cells to be encapsulated into a packet that can be sent by the local PE is limited by max-atm-cell-value in the max-atm-cells command used for PW negotiation on the remote PE. If max-atm-cell-value is beyond the processing capability of the local PE, run the transmit-atm-cells transmit-atm-cell-value command to configure the maximum number of ATM cells to be encapsulated into a packet that can be sent by a device. Then the local PE compares its transmit-atm-cell-value with max-atm-cell-value received from the remote PE and encapsulates ATM cells into a packet for transmission based on the smaller one of the two values. The transmit-atm-cell-value value range is limited by the processing capability of a device. You can set transmit-atm-cells-value of a Huawei device for this device to communicate with non-Huawei devices. By default, the maximum number of ATM cells to be sent is not configured, and the device encapsulates ATM cells based on max-atm-cell-value received from a peer device.

Prerequisites

A PW template has been created and the PW template view is displayed, or the PW template view is directly displayed using the pw-template command.

Configuration Impact

After the transmit-atm-cells command is run, the local PE compares its transmit-atm-cells with max-atm-cells received from a remote PE and encapsulates ATM cells into packets for transmission based on the smaller one of the two values. If the transmit-atm-cells command is not run, the local PE encapsulates ATM cells into packets based on max-atm-cells specified in the max-atm-cells command received from a remote PE.

Follow-up Procedure

Run the reset pw command for the new PW template attributes to take effect.

Precautions

The transmit-atm-cells command takes effect only on interfaces that carry ATM services.
transmit-atm-cells-value specifies the maximum number of ATM cells to be encapsulated into a packet that can be sent by a device to the network side. This parameter is not used for PW parameter negotiation.
If the mpls l2vc or mpls static-l2vc command with the transmit-atm-cells-value parameter has been run, and the transmit-atm-cells command has also been run in the PW template view to configure the maximum number of ATM cells to be encapsulated into a packet that can be sent by a device, the mpls l2vc or mpls static-l2vc command configuration takes effect.

Example

# Configure the maximum number of ATM cells to be encapsulated into a packet that can be sent by a device in the PW template named pt as 20.

<HUAWEI> system-view
[~HUAWEI] mpls l2vpn
[*HUAWEI-l2vpn] quit
[*HUAWEI] pw-template pt
[*HUAWEI-template-pt] transmit-atm-cells 20