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NE20E-S2 V800R010C10SPC500 Configuration Guide - System Management 01

This is NE20E-S2 V800R010C10SPC500 Configuration Guide - System Management
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Example for Configuring 1588 ACR Clock Synchronization in a Single-Server Scenario

Example for Configuring 1588 ACR Clock Synchronization in a Single-Server Scenario

This section describes how to configure 1588 ACR on the router functioning as a client and the router functioning as a server to restore clock information in a single-server scenario by using an example.

Networking Requirements

On the IP RAN shown in Figure 12-2, DeviceA functions as a clock server. DeviceC functions as a client, and sends a 1588 ACR Layer 3 unicast negotiation request to the server to achieve clock synchronization.

Figure 12-2 Networking diagram of configuring 1588 ACR clock synchronization in a single-server scenario

Configuration Roadmap

The configuration roadmap is as follows:

  1. Configure DeviceA as a server.

  2. Configure DeviceC as a client.

  3. Adjust Layer 3 unicast negotiation parameters on the server and the client.

  4. Configure unicast negotiation on the server and client.

  5. On the client, configure a PTP clock reference source.

Data Preparation

To complete the configuration, you need the following data:

  • IP address of the server and the IP address of the client

  • Interval for sending Sync, Delay_Resp and Announce packets on the server

Procedure

  1. Configure DeviceA as a server.

    <DeviceA> system-view
    [~DeviceA] interface loopback 0
    [*DeviceA-Loopback0] ip address 1.1.1.1 32
    [*DeviceA-Loopback0] commit
    [~DeviceA-Loopback0] quit
    [*DeviceA] ptp-adaptive enable
    [*DeviceA] ptp-adaptive device-type server
    [*DeviceA] ptp-adaptive local-ip 1.1.1.1
    [*DeviceA] commit

  2. Configure Device C as a client.

    <DeviceC> system-view
    [~DeviceC] interface loopback 0
    [*DeviceC-Loopback0] ip address 2.2.2.2 32
    [*DeviceC-Loopback0] commit
    [~DeviceC-Loopback0] quit
    [*DeviceC] ptp-adaptive enable
    [*DeviceC] ptp-adaptive device-type client
    [*DeviceC] ptp-adaptive local-ip 2.2.2.2
    [*DeviceC] ptp-adaptive remote-server1-ip 1.1.1.1
    [*DeviceC] commit

  3. Adjust Layer 3 unicast negotiation parameters on the client and the server.

    # Configure the client.

    [*DeviceC] ptp-adaptive request sync-interval 4
    [*DeviceC] ptp-adaptive request announce-interval 12
    [*DeviceC] ptp-adaptive request delay-resp-interval 6
    [*DeviceC] commit

  4. Configure unicast negotiation on the server and client.

    # Configure the server.

    [*DeviceA] ptp-adaptive acr unicast-negotiate enable
    [*DeviceA] commit

    # Configure the client.

    [*DeviceC] ptp-adaptive acr unicast-negotiate enable
    [*DeviceC] commit

  5. On the client, configure a PTP clock reference source.

    [*DeviceC] clock source ptp synchronization enable
    [*DeviceC] clock source ptp priority 1
    [*DeviceC] clock source ptp ssm prc
    [*DeviceC] commit

  6. Verify the configuration.

    # Check the 1588 ACR configuration on DeviceC.

    <DeviceC> display ptp-adaptive all
     Device config info
     ---------------------------------------------------------------------------
     Ptp adaptive state      :enable         Device type        :client
     Sync mode               :frequency      Current state      :slave
     Packet dscp             :56             Domain value       :0
     Announce interval       :12             Announce duration  :300s
     Sync interval           :4              Sync duration      :300s
     Delay_resp interval     :6              Delay_resp duration:300s
     Announce receipt timeout:3              Acr mode           :one-way
     Local ip                :2.2.2.2        Client board       :3  
     Frequency profile       :no
     VPN                     :none
    
     BMCA run info
     ---------------------------------------------------------------------------
     Current trace source    : server1
     Frequency lock success  : yes
    
     Time performance statistics(ns):
     ------------------------------------------------------------------------
     Realtime(T2-T1)         :987740873
     Max(T2-T1)              :987742555
     Min(T2-T1)              :987423502
    
     Remote server info
     ---------------------------------------------------------------------------
              Ip address        Negotiate state  Pri1 Class   Accuracy  Pri2
     Server1: 1.1.1.1           Nego success     128  6       0x34      128
     Server2:                                                               
    

    # Check the 1588 ACR configuration on DeviceA.

    <DeviceA> display ptp-adaptive all
     Device config info
     ---------------------------------------------------------------------------
     Ptp adaptive state      : enable         Device type        : server
     Sync mode               : frequency      Current state      : master
     Packet dscp             : 56             Domain value       : 0
     Local ip                : 1.1.1.1        Server board       : 3
     Frequency profile       : no
     VPN                     : none
    
     Client info
         ID  Ip Address        Clock ID          Mode    Announce  Sync  Delay_resp
     ---------------------------------------------------------------------------
     1   0   2.2.2.2           001882fffed48301  one-way 2         -6    none
    

Configuration Files

  • Configuration file of DeviceA

    #
     sysname DeviceA
    #
     ptp-adaptive enable
     ptp-adaptive device-type server
     ptp-adaptive local-ip 1.1.1.1
     ptp-adaptive acr unicast-negotiate enable
    #
    interface Loopback0
     ip address 1.1.1.1 255.255.255.255
    # 
    return
  • Configuration file of DeviceC

    #
     sysname DeviceC
    #
     ptp-adaptive enable
     ptp-adaptive device-type client
     ptp-adaptive local-ip 2.2.2.2
     ptp-adaptive remote-server1-ip 1.1.1.1
     ptp-adaptive request sync-interval 4
     ptp-adaptive request announce-interval 12
     ptp-adaptive request delay-resp-interval 6
     ptp-adaptive acr unicast-negotiate enable
     clock source ptp synchronization enable
     clock source ptp priority 1
     clock source ptp ssm prc
    #
    interface Loopback0
     ip address 2.2.2.2 255.255.255.255
    # 
    return
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Updated: 2019-01-02

Document ID: EDOC1100055400

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