HP 6125G HP 6125G & 6125G/XG Blade Switches Network Management and Mon - Page 23

Configuring the broadcast mode

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Step 2. Specify a symmetric-passive peer for the device. Command 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 ] * Remarks 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 1. Enter system view. 2. Enter VLAN interface view. 3. Configure the device to operate in NTP broadcast client mode. Configuring the broadcast server Command system-view interface interface-type interface-number ntp-service broadcast-client Remarks N/A This command enters the view of the interface for sending NTP broadcast messages. N/A Step 1. Enter system view. 2. Enter VLAN interface view. Command system-view interface interface-type interface-number Remarks N/A This command enters the view of the interface for sending NTP broadcast messages. 16

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16
Step
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.
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.