10.3.4 packet tracer - Configure and Verify NTP
CCNAv7 - Enterprise Networking, Security, and Automation (ENSA)
Cisco CCNA3 Packet Tracer. Netacad, IT network.
Objectives:
In this activity, you will configure NTP on R1 and R2 to allow time synchronization.
Background / Scenario:
Network Time Protocol (NTP) synchronizes the time of day among a set of distributed time servers and clients. While there are a number of applications that require synchronized time, this lab will focus on correlating events that are listed in the system log and other time-specific events from multiple network devices. NTP uses the User Datagram Protocol (UDP) as its transport protocol. All NTP communications use Coordinated Universal Time (UTC).
An NTP server usually receives its time from an authoritative time source, such as an atomic clock attached to a time server. The NTP server then distributes this time across the network. NTP is extremely efficient. No more than one packet per minute is necessary to synchronize two devices to within a millisecond of each other.