OSF DCE Administration Guide--Core Components
Planning Your DTS Implementation
If you are planning to use one or more time-providers, locate them at easily accessible
systems to ease startup and maintenance. If your network only requires synchronized
clocks, but does not need to closely follow a time standard such as UTC, you may not
require a time-provider. If you do not use a time-provider, we recommend that you use
the DCE control program (dcecp) clock set command to manually set the time
approximately once each week.
Figure 24-1 shows a simplified LAN configuration. Your LAN may be much larger, but
the figure should resemble a portion of your network.
Figure 24-1. DTS Configuration—LAN
ClerkServerClerkServer
TP
( Time −Provider )
ClerkClerkClerkServerClerk
ClerkServerClerkServer
TP
ClerkClerkClerkServerClerk
ClerkServerClerkServer
ClerkClerkClerkServerClerk ClerkClerkClerkServerClerk
Server Clerk Server Clerk
TP
24.4 Configuring DTS for an Extended LAN
If your network consists of several LAN segments that are connected by bridges, your
network is considered to be an extended LAN. Planning for extended LANs is similar to
planning for a single LAN; treat each segment of the extended LAN as though it were a
separate LAN. The following guidelines are recommended:
• Create three servers in each segment.
• Use the dts configure command to configure one server on each segment as a global
server.
• Use the dts modify command to configure one server on each segment as a courier.
• If you are using time-providers, connect them to the global servers.
24.5 Configuring DTS for WANs and WAN Links
Because there are many variations of WAN configurations, especially in combination
with LANs and extended LANs, it is impossible to describe every case where a WAN
link can be used to disseminate time. This section does not give recommendations for
every case involving a WAN link, but it describes how you can set up your DTS
implementation by using several generic configurations as examples.
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