3Com SuperStack 4 Configuration Manual page 347

Configure NTP server mode
■
Configure NTP peer mode
■
Configure NTP broadcast server mode
■
Configure NTP broadcast client mode
■
Configure NTP multicast server mode
■
Configure NTP multicast client mode
■
Configuring NTP Server Mode
Set a remote server whose ip address is ip-address as the local time server.
ip-address specifies a host address other than a broadcast, multicast or reference
clock IP address. In this case, the local Switch operates in client mode. In this
mode, only the local client synchronizes its clock with the clock of the remote
server, while the reverse synchronization will not happen.
Perform the following configurations in System View.
Table 436 Configure NTP Time Server
Operation
Configure NTP time server ntp-service unicast-server
Cancel NTP server mode
NTP version number
number
authentication key ID
keyid
interface-type interface-number
which the source IP address of the NTP packets sent from the local Switch to the
time server will be taken;
choice.
Configuring NTP Peer Mode
Set a remote server whose ip address is
equipment. In this case, the local equipment operates in symmetric active mode.
specifies a host address other than a broadcast, multicast or
ip-address
reference clock IP address. In this mode, both the local Switch and the remote
server can synchronize their clocks with the clock at the opposite end.
Perform the following configurations in System View.
Table 437 Configure NTP Peer Mode
Operation Command
Configure NTP peer
ntp-service unicast-peer
mode
number
source-interface {
interface-type interface-number
Cancel NTP peer mode undo ntp-service unicast-peer
NTP version number
number
authentication key ID
keyid
interface-type interface-number
Command
number
] [ authentication-keyid
source-interface {
interface-type interface-number
undo ntp-service unicast-server
ranges from 1 to 3 and defaults to 3; the
ranges from 0 to 4294967295;
specifies the IP address of an interface, from
indicates the time server will be the first
priority
ip-address
] [ authentication-key
interface-name
ranges from 1 to 3 and defaults to 3; the
ranges from 0 to 4294967295;
specifies the IP address of an interface, from
NTP Configuration
ip-address
keyid
] [
interface-name
|
} ] [ priority ]
ip-address
interface-name
as the peer of the local
ip-address [ version
keyid ] [
|
} ] [ priority ]
ip-address
interface-name
359
[ version
or
or