Sybase 12.4.2 - Manual (Page 480)

Network performance
460
• If large transfers are common, consider installing better network hardware
that is suitable for such transfers. For example:
• Token ring–responds better during heavy utilization periods than
ethernet hardware.
• Fiber optic–provides very high bandwidth, but is usually too
expensive to use throughout the entire network.
• Separate network–can be used to handle network traffic between the
highest volume workstations and the server.
Isolate heavy network users
In case A, clients accessing two different database servers use one network
card. That means that clients accessing Servers A and B have to compete over
the network and past the network card. In the case B, clients accessing Server
A use a different network card than clients accessing Server B.
It would be even better to put your database servers on different machines. You
may also want to put heavy users of different databases on different machines.