3Com 4210 PWR Configuration Manual page 376

374 C 35: NTP C
HAPTER
Configuring NTP
Multicast Mode
n
ONFIGURATION
Configuring a switch to work in the NTP broadcast server mode
Table 285 Configure a switch to work in the NTP broadcast server mode
Operation
Enter system view
Enter VLAN interface view
Configure the switch to work
in the NTP broadcast server
mode
Configuring a switch to work in the NTP broadcast client mode
Table 286 Configure a switch to work in the NTP broadcast client mode
Operation
Enter system view
Enter VLAN interface view
Configure the switch to work
in the NTP broadcast client
mode
For switches working in the multicast mode, you need to configure both the server
and clients. The multicast server periodically sends NTP multicast messages to
multicast clients. The switches working in the NTP multicast client mode will
respond to the NTP messages, so as to start the clock synchronization.
A 3Com Switch 4210 can work as a multicast server or a multicast client.
Refer to Table 287 for configuring a switch to work in the NTP multicast server
■
mode.
Refer to Table 288 for configuring a switch to work in the NTP multicast client
■
mode.
A multicast server can synchronize multicast clients only after its clock has been
■
synchronized.
The Switch 4210 working in the multicast server mode supports up to 1,024
■
multicast clients.
Configuring a switch to work in the multicast server mode
Table 287 Configure a switch to work in the NTP multicast server mode
Operation
Enter system view
Enter VLAN interface view
Configure the switch to work
in the NTP multicast server
mode
Command
system-view
interface Vlan-interface
vlan-id
ntp-service
broadcast-server [
authentication-keyid key-id
| version number ]*
Command
system-view
interface Vlan-interface
vlan-id
ntp-service
broadcast-client
Command
system-view
interface Vlan-interface
vlan-id
ntp-service
multicast-server [ ip-address
] [ authentication-keyid
keyid | ttl ttl-number |
version number ]*
Description
-
-
Required
Not configured by default.
Description
-
-
Required
Not configured by default.
Description
-
-
Required
Not configured by default.