Distributed Name Service (DNS) Management Operations Manual

Distribution Strategy of Network Control Nodes
How DNS Exports the Name Database
31258 Tandem Computers Incorporated 5–9
Figure 5-3. Distribution With Two Network Control Nodes
DNS Name
Manager
DNS Name
Manager
DNS Name
Manager
DNS Name
Manager
DNS Name
Exporter
DNS Name
Exporter
DNS Name
Exporter
DNS Name
Exporter
DNS Name
Manager
DNS Name
Manager
S8121-026
The name databases on \A and \B are
replicated on \C. The name database
on \D is partially replicated on \C.
If \C became unavailable, \A, \B, and \D
could replicate their databases on \F.
The name database on \E is
replicated on \F. The name
database on \D is partially
replicated on \F. If \F became
unavailable, \D and \E could
replicate their databases on \C.
\A
\C
(NCN)
\B \D \E
\F
(NCN)
The name exporter is responsible for
remote copies and updates.
From
\A
From
\B
From
\E
From
\D
From
\D
Partial Replication