H3C Technologies H3C S6300 Series Switches - Manual (Page 51)

38
System peer: 3.0.1.31
Local mode: bclient
Reference clock ID: 3.0.1.31
Leap indicator: 00
Clock jitter: 0.044281 s
Stability: 0.000 pps
Clock precision: 2^-10
Root delay: 0.00229 ms
Root dispersion: 4.12572 ms
Reference time: d0d289fe.ec43c720 Sat, Jan 8 2011 7:00:14.922
The output shows that Switch D has been synchronized to Switch C, the clock stratum level of
Switch D is 3, and that of Switch C is 2.
# Display IPv4 NTP association information for Switch D.
[SwitchD-Vlan-interface2] display ntp-service sessions
source reference stra reach poll now offset delay disper
********************************************************************************
[1245]3.0.1.31 127.127.1.0 2 1 64 519 -0.0 0.0022 4.1257
Notes: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured.
Total sessions : 1
The output shows that an association has been set up between Switch D and Switch C.
5. Configure Switch B:
Because Switch A and Switch C are on different subnets, you must enable the multicast functions
on Switch B before Switch A can receive multicast messages from Switch C.
# Enable IP multicast routing and IGMP.
<SwitchB> system-view
[SwitchB] multicast routing
[SwitchB-mrib] quit
[SwitchB] interface vlan-interface 2
[SwitchB-Vlan-interface2] pim dm
[SwitchB-Vlan-interface2] quit
[SwitchB] vlan 3
[SwitchB-vlan3] port ten-gigabitethernet 1/0/1
[SwitchB-vlan3] quit
[SwitchB] interface vlan-interface 3
[SwitchB-Vlan-interface3] igmp enable
[SwitchB-Vlan-interface3] igmp static-group 224.0.1.1
[SwitchB-Vlan-interface3] quit
[SwitchB] igmp-snooping
[SwitchB-igmp-snooping] quit
[SwitchB] interface ten-gigabitethernet 1/0/1
[SwitchB- Ten-GigabitEthernet1/0/1] igmp-snooping static-group 224.0.1.1 vlan 3
6. Configure Switch A:
# Enable the NTP service.
<SwitchA> system-view
[SwitchA] ntp-service enable
# Configure Switch A to operate in multicast client mode and receive multicast messages on
VLAN-interface 3.