H3c-technologies H3C WX5500E Series Access Controllers Uživatelský manuál stáhnout pdf (Strana 23)

Ste

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

Ste

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

Ste

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.

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