H3C Technologies H3C SecPath F1000-E - Manual (Page 129)

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As shown above, SecPath D has been synchronized to SecPath C and the clock stratum level of
SecPath D is 3, while that of SecPath C is 2.
# View the NTP session information of SecPath D, which shows that an association has been set up
between SecPath D and SecPath C.
[SecPathD-GigabitEthernet0/1] 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
4. Configure SecPath B:
Because SecPath A and SecPath C are on different subnets, you must enable the multicast functions
on SecPath B before SecPath A can receive multicast messages from SecPath C.
# Enable the IP multicast function.
system-view
[SecPathB] multicast routing-enable
[SecPathB] interface GigabitEthernet 0/1
[SecPathB-GigabitEthernet0/1] igmp enable
[SecPathB-GigabitEthernet0/1] igmp static-group 224.0.1.1
[SecPathB-GigabitEthernet0/1] quit
[SecPathB] interface GigabitEthernet 0/2
[SecPathB-GigabitEthernet0/2] pim dm
5. Configure SecPath A:
system-view
[SecPathA] interface GigabitEthernet 0/1
# Configure SecPath A to operate in multicast client mode and receive multicast messages on
GigabitEthernet 0/1.
[SecPathA-GigabitEthernet0/1] ntp-service multicast-client
# View the NTP status of SecPath A after clock synchronization.
[SecPathA-GigabitEthernet0/1] display ntp-service status
Clock status: synchronized
Clock stratum: 3
Reference clock ID: 3.0.1.31
Nominal frequency: 64.0000 Hz
Actual frequency: 64.0000 Hz
Clock precision: 2^7
Clock offset: 0.0000 ms
Root delay: 40.00 ms
Root dispersion: 10.83 ms
Peer dispersion: 34.30 ms
Reference time: 16:02:49.713 UTC Sep 19 2005 (C6D95F6F.B6872B02)
As shown above, SecPath A has been synchronized to SecPath C and the clock stratum level of
SecPath A is 3, while that of SecPath C is 2.
# View the NTP session information of SecPath A, which shows that an association has been set up
between SecPath A and SecPath C.
[SecPathA-GigabitEthernet0/1] display ntp-service sessions
source reference stra reach poll now offset delay disper