H3c-technologies H3C WX6000 Series Access Controllers Manual do Utilizador descarregar pdf (Página 78)

6-10

To do… Use the command… Remarks

Configure the AC to work in the

NTP multicast client mode

ntp-service

multicast-client

[ ip-address ]

Required

Configuring the multicast server

To do… Use the command… Remarks

Enter system view

system-view

—

Enter interface view

interface

interface-type

interface-number

Enter the interface used to send

NTP multicast message.

Configure the AC to work in the

NTP multicast server mode

ntp-service

multicast-server

[ ip-address ]

[

authentication-keyid

keyid |

ttl

ttl-number |

version

number ] *

Required

z A multicast server can synchronize broadcast clients only after its clock has been synchronized.

z You can configure up to 1024 multicast clients, among which 128 can take effect at the same time.

Configuring the Local Clock as a Reference Source

A network AC can get its clock synchronized in one of the following two ways:

z Synchronized to the local clock, which works as the reference source.

z Synchronized to another AC on the network in any of the four NTP operation modes previously

described.

If you configure two synchronization modes, the AC will choose the optimal clock as the reference

source.

Follow these steps to configure the local clock as a reference source:

To do… Use the command… Remarks

Enter system view

system-view

—

Configure the local clock as a

reference source

ntp-service refclock-master

[ ip-address ] [ stratum ]

Required

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