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3

Cisco, . , . , , , NTP L2/L3 Cisco.


Cisco IOS / (hardware) () . , , calendar time. , ( ) , . Cisco Packet Tracer:

en
show clock
    Cisco

, , *0:3:55.103 UTC Mon Mar 1 1993 . , . , show clock detail:

en
show clock
     Cisco

clock set ( , ) :

en
conf t
clock set 13:12:00 23 august 2018
    Cisco

, user configuration. , , ( show calendar). :

clock update-calendar

:)


: NTP

, , . NTP (Network Time Protocol), NTP .

, . NTP, , . , , NTP :

en
conf t
ntp server 192.168.168.192
ntp server 192.168.168.193
 NTP  Cisco
, Cisco Packet Tracer Cisco 2911, :)

, :

show ntp associations - NTP;
show ntp status
 NTP  Cisco

Clock is synchronized, stratum 2, reference is A.B.C.D. . - NTP, , () . , () :

ntp update-calendar

?


: