Switch 7700 Configuration Guide, v2

NTP 35
Gathers statistics of interface Ethernet2/0/1. Received:
octets : 270149,packets : 1954
broadcast packets :1570 ,multicast packets:365
undersized packets :0 ,oversized packets:0
fragments packets :0 ,jabbers packets :0
CRC alignment errors:0 ,collisions :0
Dropped packet events (due to lack of resources):0
Packets received according to length (in octets):
64 :644 , 65-127 :518 , 128-255 :688
256-511:101 , 512-1023:3 , 1024-1518:0
NTP As the network topology gets more and more complex, it becomes important to
synchronize the clocks of the equipment on the entire network. Network Time
Protocol (NTP) is a TCP/IP feature that advertises the accurate time throughout the
network.
NTP ensures the consistency of the following applications:
■ For the incremenal backup between the backup server and client, NTP ensures
the clock synchronization between the two systems.
■ For multiple systems that coordinate to process a complex event, NTP ensures
them to reference the same clock and guarantee the right order of the event.
■ Guarantee the normal operation of the inter-system (Remote Procedure Call).
■ Record for an application when a user logs in to a system, a file is modified, or
some other operation is performed.
Figure 7 illustrates the basic operating principle of NTP:
Figure 7 Basic Operating Principle of NTP