H3C Technologies H3C S3100 Series Switches - Manual (Page 467)

Operation Manual – NTP
H3C S3100-52P Ethernet Switch Chapter 1 NTP Configuration
1-5
III. Broadcast mode
Network
Client
Works in the server
mode automatically and
sends response packets
Network Network
Client/server mode request
Network
Server
Broadcasts clock synchronization
packets periodically
Initiates a
request afte
broadc
client/server mode
r receiving the first
ast packet
Response packet
Obtains the d
client and s
the broadc
elay between the
erver and works in
ast client mode
Broadcasts clock synchronization
packets periodically
Receives br
synchroni
oadcast packets and
zes the local clock
e
Figure 1-4
Broadcast mod
IV. Multicast mode
Network
Client
Works in the server
mode automatically and
sends response packets
Network Network
Client/server mode request
Network
Server
Multicasts clock synchronization
packets periodically
Initiates a clie
request after
multic
nt/server mode
receiving the first
ast packet
Response packet
Obtains th
client and s
the multi
e delay between the
erver and works in
cast client mode
Multicasts clock synchronization
packets periodically
Receives mul
synchroni
ticast packets and
zes the local clock
e
Figure 1-5
Multicast mod
Table 1-1 describes how the above mentioned NTP modes are implemented on
S3100-52P Ethernet switch.
Table 1-1
NTP implementation modes on S3100-52P Ethernet switch
NTP
implementation
mode
Configuration on S3100-52P switch
Client/server mode
Configure the local S3100-52P Ethernet switch to operate in
the NTP server mode. In this mode, the remote server
serves as the local time server, while the local switch serves
as the client.
Peer mode
Configure the local S3100-52P switch to operate in NTP
peer mode. In this mode, the remote server serves as the
peer of the S3100-52P switch, and the local switch serves
as the active peer.