H3C Technologies H3C WX5500E Series Access Controllers - Manual (Page 23)

15
Step Command Remarks
2. Specify a symmetric-passive
peer for the device.
ntp-service unicast-peer
{ ip-address | peer-name }
[ authentication-keyid keyid |
priority | source-interface
interface-type interface-number |
version number ] *
By default, no symmetric-passive
peer is specified.
The ip-address argument must be a
unicast address, rather than a
broadcast address, a multicast
address, or the IP address of the
local clock.
After you specify the source
interface for NTP messages by
specifying the source interface
source-interface option, the source
IP address of the NTP messages is
set as the primary IP address of the
specified interface.
You can configure multiple
symmetric-passive peers by
repeating this command.
Configuring the broadcast mode
The broadcast server periodically sends NTP broadcast messages to the broadcast address
255.255.255.255. After receiving the messages, the device operating in NTP broadcast client mode
sends a reply and synchronizes to the server.
Configure the NTP broadcast mode on both the server and clients. The NTP broadcast mode can only be
configured in a specific interface view because an interface needs to be specified on the broadcast
server for sending NTP broadcast messages and on each broadcast client for receiving broadcast
messages.
Configuring a broadcast client
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter VLAN interface view.
interface interface-type
interface-number
This command enters the view of
the interface for sending NTP
broadcast messages.
3. Configure the device to
operate in NTP broadcast
client mode. ntp-service broadcast-client N/A
Configuring the broadcast server
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter VLAN interface view.
interface interface-type
interface-number
This command enters the view of
the interface for sending NTP
broadcast messages.