![]() ![]() This support facilitates interoperability with FPGA ports. In Cisco IOS XR Release 7.3.2, PTP is enabled by default on all Ethernet ports of the following variants of the Cisco NCSĥ40 router. In Cisco IOS XR Release 7.3.1, on the Cisco N540-FH-CSR-SYS router, PTP is not supported on ports 0-14. Results in packet delay variations in the packet network between theĪ transparent clock is a device or a switch that calculates the time it requires to forward traffic and updates the PTP timeĬorrection field to account for the delay, making the device transparent in terms of time calculations. The boundary clock mitigates the number of network hops and The device participates in selecting the best server clock and canĪct as the server clock if no better clocks are detected.īoundary clock starts its own PTP session with a number of downstreamĬlients. Simultaneously in order to connect to two different server You canĮnable the client mode on up to two interfaces Synchronize its clock to the server clock.Ĭlient mode-Synchronizes its clock to a server clock. To one or more client clocks, thus allowing the client to Server mode-Distributes timing information over the network ![]() All clocks are synchronized to the grandmaster clock.Īn ordinary clock is a 1588 clock with a single PTP port that can operate in one of the following modes: PTP is designed specifically for industrial, networked measurement and control systems, and is optimalįor use in distributed systems because it requires minimal bandwidth and little processing overhead.Ī network device physically attached to the primary time source. Systems, and was developed to synchronize the clocks in packet-based networks that include distributed device clocks of varying Precision Time Protocol (PTP) is defined in IEEE 1588 as Precision Clock Synchronization for Networked Measurements and Control Messages ensure continued synchronization. On the network synchronize their clocks with the server clock and are referred to as members. This clock is referred to as the server clock. Is connected to a device with the most precise clock. The clocks in are organized into a server-client hierarchy. The Precision Time Protocol (PTP), as defined in the IEEE 1588 standard, synchronizes withnanosecond accuracy the real-timeĬlocks of the devices in a network. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |