Autodesk AutoCAD Design Suite 2013, Installation Manual, Page: 89 / 138

Redundant License Server Model
In the redundant license server model, three servers are configured to
authenticate license files. Licenses can be monitored and issued as long as at
least two license servers are still functional. The Network License Manager is
installed on each server, and the license file on each server is the same.
In the redundant license server model, all servers must reside on the same
subnet and have consistent network communications. (Slow, erratic, or dial-up
connections are not supported.)
Advantage of the Redundant License Server Model
■ If one of the three servers fails, all licenses that are managed in the server
pool are still available.
Disadvantages of the Redundant License Server Model
■ If more than one server fails, no licenses are available.
■
All three servers must reside on the same subnet and have reliable network
communications. The redundant server pool does not provide network
fault tolerance.
■ If one of the three servers is replaced, the complete redundant server pool
must be rebuilt.
■ If your Autodesk product supports license borrowing, and licenses are
borrowed from a redundant license server pool, you must restart the license
server after you stop the Network License Manager.
Windows System Requirements for the Network Li-
cense Manager
NOTE The Network License Manager supports Ethernet network configurations
only.
Hardware and software requirements for the network license server
Requirement Hardware/Software
Windows
®
7
®
32- or 64-bit
Operating System
■
Windows 7 Home Premium
Network Licensing | 83