User's Manual

Radio Operation
Crescendo UHF Half-Duplex User Manual Page 30 of 78
5.5.2 Routing Table
Complete control can be maintained over the routing of data through a Crescendo network by configuring
the routing table. The routing table consists of 16 entries on each unit which specify rules to apply for data
with destination addresses within a particular range.
 The destination of point-to-point data is simply the point-to-point destination address (see section
6.3 on page 35).
 The destination of Hayes dial-up data is the address that was used when dialling (see section 6.5 on
page 36).
 The destination of a Datagram packet is set in the Datagram header (see section 6.6 on page 39).
An example routing table is shown in Figure 7.
*** Routing Table Menu ***
|First Addr |Last Addr |Hop Addr |
|-------------------|-------------------|-------------------|
(0) | 2000| 2999| 2000|
(1) | 3000| 4999| 3000|
(2) | 0| 0| 0|
(3) | 0| 0| 0|
(4) | 0| 0| 0|
(5) | 0| 0| 0|
(6) | 0| 0| 0|
(7) | 0| 0| 0|
(8) | 0| 0| 0|
(9) | 0| 0| 0|
(A) | 0| 0| 0|
(B) | 0| 0| 0|
(C) | 0| 0| 0|
(D) | 0| 0| 0|
(E) | 0| 0| 0|
(F) | 0| 0| 0|
(ESC) - Previous Menu
Enter Selection:
Figure 7: Example routing table
In this example, the rules applied are:
1. Any packet with destination address between 2000 and 2999 is transmitted to radio 2000 for further
routing.
2. Any packet with destination address between 3000 and 4999 is transmitted to radio 3000 for further
routing.
3. Any packet with a destination address that is not covered by the routing table is transmitted directly
to that radio.
Examples of routing tables used in real systems with store-and-forward repeaters are given in section 7.
Main -> Radio -> Network -> Routing Table