127Step Command Remarks2. Configure the source IPaddress for multicast PTPmessage transmission overUDP (IPv4).ptp source ip-address[ vpn-instance vpn-instance-name ]By default, no source IP address isconfigured for multicast PTPmessages.This command takes effect onlywhen multicast PTP messages aretransmitted over UDP (IPv4).The ptp unicast-destinationcommand has precedence over theptp source command.Configuring the destination IP address for unicast PTP messagetransmission over UDP (IPv4)Step Command Remarks1. Enter system view. system-view N/A2. Enter Layer 3 Ethernetinterface view.interface interface-typeinterface-number N/A3. Configure the destination IPaddress for unicast PTPmessage transmission overUDP (IPv4).ptp unicast-destination ip-addressBy default, no destination IPaddress is configured for unicastPTP message transmission.You must use this command on thecurrent interface, and make surethe interface and the peer PTPinterface can reach each other.This command takes effect onlywhen unicast PTP messages aretransmitted over UDP (IPv4).This command has precedenceover the ptp source command.Configuring the delay correction valuePTP performs time synchronization based on the assumption that the delays in sending and receivingmessages are the same. However, this is not practical. If you know the offset between the delays insending and receiving messages, you can configure the delay correction value for more accurate timesynchronization.To configure the delay correction value for every clock node:Step Command Remarks1. Enter system view. system-view N/A2. Enter Layer 3 Ethernetinterface view.interface interface-typeinterface-number N/A
