Example for Configuring 1588 ATR Client Hop-by-Hop Time Synchronization
In a 1588 ATR domain, a client sends a unicast negotiation request to the server to implement time synchronization using 1588 ATR packets.
Networking Requirements
On the IP RAN shown in Figure 1, the time server SSU2000 supports only the 1588v2 unicast negotiation mode. To allow the NetEngine 8000 F to directly connect to the time server, configure the 1588 ATR hop-by-hop mode on the NetEngine 8000 F to achieve time synchronization in 1588v2 unicast negotiation mode.
Configuration Roadmap
This section describes the configurations only in 1588 ATR client hop-by-hop mode. In Figure 1, BCs perform time synchronization using 1588v2. For detailed configuration, see 1588v2 Configuration.
The configuration roadmap is as follows:
Configure the hop-by-hop mode and enable the unicast negotiation function on the 1588 ATR client.
Configure the unicast negotiation function on the time server. This step can be skipped if the time server is not a Huawei device.
Adjust the unicast negotiation parameters between the 1588 ATR client and time server.
Verify the configuration.
Data Preparation
To complete the configuration, you need the following data:
Server's local IP address
1588 ATR domain where the server resides
Outbound interface for forwarding 1588 ATR packets
DSCP value of 1588 ATR packets
Procedure
- Configure the hop-by-hop mode and enable the unicast negotiation function on the 1588 ATR client.
<HUAWEI> system-view [~HUAWEI] interface loopback 0 [*HUAWEI-Loopback0] ip address 2.2.2.2 32 [*HUAWEI-Loopback0] commit [~HUAWEI-Loopback0] quit [*HUAWEI] ptp enable [*HUAWEI] ptp device-type bc [*HUAWEI] ptp-adaptive enable [*HUAWEI] ptp-adaptive device-type client [*HUAWEI] ptp-adaptive time profile [*HUAWEI] ptp-adaptive atr hop-by-hop [*HUAWEI] ptp-adaptive local-ip 2.2.2.2 [*HUAWEI] ptp-adaptive remote-server1-ip 1.1.1.1 [*HUAWEI] clock source ptp synchronization enable [*HUAWEI] clock source ptp priority 5 [*HUAWEI] ptp-adaptive atr unicast-negotiate enable [*HUAWEI] ptp clock-source atr enable [*HUAWEI] commit [~HUAWEI] interface gigabitethernet 0/1/9 [~HUAWEI-GigabitEthernet0/1/9] ip address 10.1.1.1 255.255.255.0 [~HUAWEI-GigabitEthernet0/1/9] ptp-adaptive atr enable [*HUAWEI-GigabitEthernet0/1/9] commit [~HUAWEI-GigabitEthernet0/1/9] quit
- Configure the unicast negotiation function on the time server. This step can be skipped if the time server is not a Huawei device.
- Adjust the unicast negotiation parameters between the 1588 ATR client and time server.
[~HUAWEI] ptp-adaptive dscp 60 [*HUAWEI] commit
- Verify the configuration.
# Display all configurations of the 1588 ATR client.
<HUAWEI> display ptp-adaptive all Device config info ------------------------------------------------------------------------------ Ptp adaptive state :enable Device type :client Sync mode :time Current state :slave Packet dscp :60 Domain value :44 Announce interval :10 Announce duration :300s Sync interval :3 Sync duration :300s Delay_resp interval :3 Delay_resp duration:300s Announce receipt timeout:3 One-way or two-way :two-way Local ip :2.2.2.2 Profile :time Client board :5 Hop_by_hop mode :yes VPN :none
# Display the configurations associated with the 1588 ATR client function.
<HUAWEI> display ptp-adaptive config Device config info ------------------------------------------------------------------------------ Ptp adaptive state :enable Device type :client Sync mode :time Current state :slave Packet dscp :56 Domain value :44 Announce interval :10 Announce duration :300s Sync interval :3 Sync duration :300s Delay_resp interval :3 Delay_resp duration:300s Announce receipt timeout:3 One-way or two-way :two-way Local ip :2.2.2.2 Profile :time Client board :5 Hop_by_hop mode :yes VPN :none Server config info ------------------------------------------------------------------------------ Ip address Asymmetry(ns) Server1: 1.1.1.1 -- Port config info Name ATR enable ------------------------------------------------------------------------------ GigabitEthernet0/1/9 true# Display detailed information and packet statistics of the 1588 ATR client.
<HUAWEI> display ptp-adaptive client 0 Client id :0 IP address :2.2.2.2 Clock id :2cab00fffec65e58 Mode :two-way Announce interval :1 Announce duration :300s Sync interval :-7 Sync duration :300s Delay_resp interval :-7 Delay_resp duration :300s Receive packet statistics --------------------------------------------------------------------------- Signalling :60 Delay_req :655778 Send packet statistics --------------------------------------------------------------------------- Signalling :60 Announce :2547 Sync :655945 Delay_resp :655778 Discard packet statistics --------------------------------------------------------------------------- Signalling :0 Delay_req :0
Configuration Files
#
interface Loopback0
ip address 2.2.2.2 255.255.255.255
#
ptp-adaptive enable
ptp-adaptive time profile
ptp-adaptive device-type client
ptp-adaptive atr hop-by-hop
ptp-adaptive local-ip 2.2.2.2
ptp-adaptive atr unicast-negotiate enable
ptp-adaptive remote-server1-ip 1.1.1.1
ptp-adaptive dscp 60
ptp enable
ptp device-type bc
ptp clock-source atr enable
clock source ptp synchronization enable
clock source ptp priority 5
#
interface GigabitEthernet0/1/9
undo shutdown
ip address 10.1.1.1 255.255.255.0
ptp-adaptive atr enable
#
return