beautypg.com

H3C Technologies H3C WX3000E Series Wireless Switches User Manual

Page 35

background image

26

# Configure Switch B to operate in multicast server mode and send multicast messages through

VLAN-interface 2.

[SwitchB] interface vlan-interface 2

[SwitchB-Vlan-interface2] ntp-service multicast-server

2.

Configure AP 2:

# Configure AP 2 to operate in multicast client mode and receive multicast messages on VLAN-interface

2.

system-view

[AP2] interface vlan-interface 2

[AP2-Vlan-interface2] ntp-service multicast-client

AP 2 and Switch B are on the same subnet, so AP 2 can receive the multicast messages from Switch B
without being enabled with the multicast functions and can be synchronized to Switch B.
# Display the NTP status of AP 2 after clock synchronization.

[AP2-Vlan-interface2] display ntp-service status

Clock status: synchronized

Clock stratum: 3

Reference clock ID: 3.0.1.31

Nominal frequency: 100.0000 Hz

Actual frequency: 100.0000 Hz

Clock precision: 2^16

Clock offset: 0.0000 ms

Root delay: 31.00 ms

Root dispersion: 8.31 ms

Peer dispersion: 34.30 ms

Reference time: 16:01:51.713 UTC Sep 19 2005 (C6D95F6F.B6872B02)

The output shows that AP 2 has been synchronized to Switch B, and the clock stratum level of AP 2 is 3,
while that of Switch B is 2.
# Display NTP session information for AP 2, which shows that an association has been set up between

AP 2 and Switch B.

[AP2-Vlan-interface2] display ntp-service sessions

source reference

stra reach poll now offset delay disper

**************************************************************************

[1234] 3.0.1.31 127.127.1.0 2 254 64 62 -16.0 31.0 16.6

note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured

Total associations : 1

3.

Configure Switch A:

AP 1 and Switch B are on different subnets, so you must enable the multicast functions on Switch A before
AP 1 can receive multicast messages from Switch B.
# Enable IP multicast routing and IGMP.

system-view

[Switch A] multicast routing-enable

[Switch A] interface vlan-interface 2

[Switch A-Vlan-interface2] pim dm

[Switch A-Vlan-interface2] quit

[Switch A] vlan 3

[Switch A-vlan3] port ethernet 1/0/1

This manual is related to the following products: