Ntp Configuration Examples - 3Com Switch 7700 Configuration Manual

364 C 11: S
HAPTER YSTEM
NTP Configuration
Examples
M
ANAGEMENT
Table 77 Setting the Authority to Access a Local Ethernet Switch
Operation
Cancel settings of the authority to access a
local Ethernet switch
IP address ACL number is specified through the acl-number parameter and ranges
from 2000 to 2999. The meanings of other authority levels are as follows:
query: Allow control query for the local NTP service only.
■
synchronization: Allow request for local NTP time service only.
■
serve: Allow local NTP time service request and control query. However, the
■
local clock will not be synchronized by a remote server.
peer: Allow local NTP time service request and control query. And the local
■
clock will also be synchronized by a remote server.
Setting Maximum Local Sessions
This configuration task sets the maximum local sessions.
Perform the following configurations in system view.
Table 78 Setting the Maximum Local Sessions
Operation
Set the maximum local sessions
Resume the maximum number of local
sessions
number specifies the maximum number of local sessions, ranges from 0 to 100,
and defaults to 100.
Displaying and Debugging NTP
After completing the previous configurations, you can use the display command
to show how NTP runs and verify the configurations according to the outputs. You
can use the debugging command, in user view, to debug NTP. See Table 79 for
the details of these commands.
Table 79 Displaying and Debugging NTP
Operation
Display the status of NTP service
Display the status of sessions maintained by
NTP service
Display the brief information about every NTP
time server on the way from the local
equipment to the reference clock source.
Debug NTP
NTP configuration examples are shown in the following:
Configuring NTP Servers
■
Configuring NTP Peers
■
Configuring NTP Broadcast Mode
■
Command
undo ntp-service access { query |
synchronization | serve | peer }
Command
ntp-service max-dynamic-sessions number
undo ntp-service max-dynamic-sessions
Command
display ntp-service status
display ntp-service sessions [ verbose ]
display ntp-service trace
debugging ntp-service