Operation Manual - System Management
Quidway S3500 Series Ethernet Switches
Chapter 7 NTP Configuration
Huawei Technologies Proprietary
7-9
Table 7-12
Enable/Disable an interface to receive NTP message
Operation
Command
Disable an interface to receive NTP message
ntp-service in-interface disable
Enable an interface to receive NTP message
undo ntp-service in-interface
disable
This configuration task must be performed on the interface to be disabled to receive
NTP message.
7.2.8 Set Authority to Access a Local Ethernet Switch
Set authority to access the NTP services on a local Ethernet Switch. This is a basic and
brief security measure, compared to authentication. An access request will be matched
with
peer
,
server
,
server only
, and
query only
in an ascending order of the limitation.
The first matched authority will be given.
Perform the following configurations in system view.
Table 7-13
Set authority to access a local Ethernet switch
Operation
Command
Set authority to access a
local Ethernet switch
ntp-service access
{
query
|
synchronization
|
server
|
peer
}
acl-number
Cancel settings of the
authority to access a local
Ethernet switch
undo ntp-service access
{
query
|
synchronization
|
server
|
peer
}
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 query for the local NTP service only.
synchronization
: Allow request for local NTP time service only.
server
: Allow local NTP time service request and query. However, the local clock will
not be synchronized by a remote server.
peer
: Allow local NTP time service request and query. And the local clock will also be
synchronized by a remote server.
7.2.9 Set Maximum Local Dynamic Sessions
This configuration task is to set the maximum local dynamic sessions.
Perform the following configurations in system view.