R2511-HP MSR Router Series Network Management and Monitoring Configuration Guide(V5)
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Ste
p
Command
Remarks
2. Specify a symmetric-passive
peer for the device.
ntp-service unicast-peer
[ vpn-instance vpn-instance-name ]
{ 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.
Configuring NTP 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 its local clock.
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.
For more information about tunnel interfaces, see Layer 3—IP Services Configuration Guide.
Configuring a broadcast client
Ste
p
Command
Remarks
1. Enter system view.
system-view
N/A
2. Enter 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
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter 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
server mode.
ntp-service broadcast-server
[ authentication-keyid keyid |
version number ] *
A broadcast server can
synchronize broadcast clients only
when its clock has been
synchronized.
Configuring NTP multicast mode
The multicast server periodically sends NTP multicast messages to multicast clients, which send replies
after receiving the messages and synchronize their local clocks.