User's Manual

Configuration Guide of XGS-5240-Series
67-10
Fig 1-1 Working Scenario
Switch implements SNTPv4 and supports SNTP client unicast as described in RFC
2030; SNTP client multicast and unicast are not supported, nor is the SNTP server fun
ction.
67.2 Typical Examples of SNTP Configuration
Fig 1-2 Typical SNTP Configuration
All switches in the autonomous zone are required to perform time synchronization,
which is done through two redundant SNTP/NTP servers. For time to be synchronized,
the network must be properly configured. There should be reachable route between any
switch and the two SNTP/NTP servers.
Example: Assume the IP addresses of the SNTP/NTP servers are 10.1.1.1 and 20.1.1.1,
respectively, and SNTP/NTP server function (such as NTP master) is enabled, then co
nfigurations for any switch should like the following:
Switch#config
Switch(config)#sntp server 10.1.1.1
SWITCH
… …
SWITCH SWITCH
SNTP/NTP
SERVER
SNTP/NTP
SERVER