SATELLINE-EASy Pro 35W
User Guide v.1.4
84
11.2
Operating modes of Message Routing
The
Message Routing
has two different operating modes:
•
Source Mode Routing
•
Virtual Mode Routing
The most important differences between the two modes are shown in the table below.
Property
Source Mode Routing
Virtual Mode Routing
Summary
Slower, more functions
Faster, less functions
Radio interference tolerance
Yes, overhop function
No
Support for mobile stations
Yes
No
Addition of substations to a
network
Only master station needs to be
reconfigured
Master station and consecutive
repeaters need to be
reconfigured
Changing routes
Only master station needs to be
reconfigured
All radio modems need to be
reconfigured
Maximum length of route
13 hops
No limit
Overhop function
Yes
No
Network ID
Yes
Yes
Storing of routing information
Centralised
Dispersed
Message Routing overhead
(bytes)
10+2*number of hops
9
Maximum length of user protocol
message (bytes)
1kB – Message Routing overhead 1kB – Message Routing
overhead
Other issues common to the both modes:
•
The maximum number of terminals depends on the radio network structure and the
number of routes.
•
Multiple terminal addresses may be attached to a radio modem.
•
The maximum length of a terminal address (in the user's protocol) is four bytes (FFFFFFFF
in hexadecimal).
•
The maximum length of the address of a radio modem is two bytes (FFFF in hexadecimal).
