ptp-adaptive unicast-negotiate enable

Function

The ptp-adaptive acr unicast-negotiate enable command enables 1588 ACR unicast negotiation on the router and configures the frequency recovery mode to be one-way or two-way.

The undo ptp-adaptive acr command disables 1588 ACR unicast negotiation from the router and cancels the configured frequency recovery mode. As a result, the frequency recovery mode is none.

The ptp-adaptive atr unicast-negotiate enable command enables the 1588 ATR unicast negotiation function on an router.

The undo ptp-adaptive atr command disables the 1588 ATR unicast negotiation function on an router.

By default, 1588 ACR unicast negotiation is disabled, and therefore the frequency recovery mode is none.

By default, the 1588 ATR unicast negotiation function is disabled.

Format

undo ptp-adaptive { acr | atr }

ptp-adaptive { acr [ one-way | two-way ] | atr } unicast-negotiate enable

Parameters

Parameter	Description	Value
one-way	The specified frequency recovery mode is one-way, or the clock frequency is recovered using Sync packets.	-
two-way	The specified frequency recovery mode is two-way, or the clock frequency is recovered using Sync packets, Delay_Request packets, and Delay_Response packets.	-

Parameter

Description

Value

one-way

The specified frequency recovery mode is one-way, or the clock frequency is recovered using Sync packets.

two-way

The specified frequency recovery mode is two-way, or the clock frequency is recovered using Sync packets, Delay_Request packets, and Delay_Response packets.

Views

System view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
clksync	write

Usage Guidelines

Usage Scenario

To ensure the 1588 ACR clock synchronization between the clock server and the client, you need to use this command to configure 1588 ACR unicast negotiation and frequency recovery mode on the two ends.

To enable the 1588 ATR unicast negotiation function, run the ptp-adaptive atr unicast-negotiate enable command.

Prerequisites

Before running the ptp-adaptive acr unicast-negotiate enable command, the following configurations have been performed:

1588 ACR has been enabled using the ptp-adaptive enable command.
The device has been configured work as a 1588 ACR server or client using the ptp-adaptive device-type command.
The local IP address used to initiate a Layer 3 unicast negotiation request is configured using the ptp-adaptive local-ip command.
Before running the ptp-adaptive atr unicast-negotiate enable command, the following configurations have been performed:
1588 ATR has been enabled using the ptp-adaptive enable command.
The device has been enabled to support ITU-T G.8275.2 using the ptp-adaptive time profile command.
The device has been configured work as a 1588 ATR server using the ptp-adaptive device-type server command.
The local IP address used to initiate a Layer 3 unicast negotiation request is configured using the ptp-adaptive local-ip command.

Configuration Impact

After 1588 ACR and unicast negotiation have been enabled on the router, the device functioning as a client initiates a request for negotiation and exchanges Layer 3 unicast packets with a clock server to set up a connection. If the connection is successful, the client exchanges 1588v2 packets with the clock server to restore clock information. After 1588 ACR and unicast negotiation have been enabled on the router, the device functioning as a server accepts the connection request sent by a client. If the connection is successful, the server exchanges 1588v2 packets carrying clock information with the client.

After the 1588 ATR unicast negotiation function is enabled on an router, the router can function as a clock server to receive connection requests from clock clients and send 1588 packets carrying clock information to the clock clients.

Follow-up Procedure

Parameters for unicast negotiation need to be set.

Example

# Enable 1588 ACR unicast negotiation.

<HUAWEI> system-view
[~HUAWEI] interface loopback 0
[*HUAWEI-Loopback0] ip address 2.2.2.2
[*HUAWEI-Loopback0] quit
[~HUAWEI] ptp-adaptive enable
[*HUAWEI] ptp-adaptive device-type client
[*HUAWEI] ptp-adaptive local-ip 2.2.2.2 ptp-adaptive acr unicast-negotiate enable

# Enable the 1588 ATR unicast negotiation function.

<HUAWEI> system-view
[~HUAWEI] interface loopback 0
[*HUAWEI-Loopback0] ip address 2.2.2.2
[*HUAWEI-Loopback0] quit
[~HUAWEI] ptp-adaptive enable
[~HUAWEI] ptp-adaptive time profile
[*HUAWEI] ptp-adaptive device-type server
[*HUAWEI] ptp-adaptive local-ip 2.2.2.2 ptp-adaptive atr unicast-negotiate enable