Filter
Top Products
3Com Switch 8800 Configuration Guide Chapter 49 NTP Configuration
49-15
their respective Vlan-interface2. (Note: SW88003 supports to configure the local clock
as the master clock)
II. Network diagram
See Figure 7-2.
1) Configuration procedure
Configure Ethernet Switch SW88003:
Enter system view.
<SW88003> system-view
Set the local clock as a master NTP clock at stratum 2.
[SW88003] ntp-service refclock-master 2
Enter Vlan-interface2 view.
[SW88003] interface vlan-interface 2
Set it as a multicast server.
[SW88003-Vlan-Interface2] ntp-service multicast-server
Configure Ethernet Switch SW88004:
Enter system view.
<SW88004> system-view
Enter Vlan-interface2 view.
[SW88004] interface vlan-interface 2
Enable multicast client mode.
[SW88004-Vlan-Interface2] ntp-service multicast-client
Configure Ethernet Switch SW88001:
Enter system view.
<SW88001> system-view
Enter Vlan-interface2 view.
[SW88001] interface vlan-interface 2
Enable multicast client mode.
[SW88001-Vlan-Interface2] ntp-service multicast-client
The above examples configure SW88004 and SW88001 to receive multicast
messages from Vlan-interface2, SW88003 multicast messages from Vlan-interface2.
Since SW88001 and SW88003 are not located on the same segments, SW88001
cannot receive the multicast packets from SW88003, while SW88004 is synchronized
by SW88003 after receiving the multicast packet.