8 S&C Instruction Sheet 1074-510
Description
Table 1. OSI Model
Data Unit
Layer
Function
Host lED
(Intelligent
Electronic
Device) Layers
Data
Application
Network process to application .
IntelliRupter/IntelliTeam
Presentation
Data representation and encryption
Session
Interhost communication
Segments
Transport
End-to-end connections and reliability
(UDP/TCP)
Media SpeedNet
Layers
Packets
Network
Path determination and logical
addressing (IP)
Frames
Data Link
Physical addressing (MAC and LLC)
Bits
Physical
Media, wireless, fiber optics, and wire
Network Example
Use of private IP addresses is strongly recommended when configuring a SpeedNet ME
Radio network. The following example of a SpeedNet ME Radio network uses several
private IP subnets from the 192.168.0.0 block of private addresses.
The SpeedNet ME Radio network, depicted in Figure 1, contains three Ethernet
segments. The first segment uses the 192.168.200.0 Class C subnet, encompassing a
range of addresses from 192.168.200.1 to 192.168.200.254. The second segment uses the
192.168.201.0 Class C subnet, encompassing a range of addresses from 192.168.201.1 to
192.168.201.254. The third segment uses the 192.168
.202.0 Class C subnet, encompassing
a range of addresses from 192.168.202.1 to 192.168.202.254. All three radios sh
are the
192.168.203.0 Class C subnet for their wireless interfaces. It is over this common subnet
that traffic is routed between Ethernet segments.
SpeedNet ME
1
192.168.203.1
SpeedNet ME
2
192.168.203.2
SpeedNet
ME 3
192.168.203.3
192.168.200.1
192.168.201.1
192.168.202.1
192.168.200.2
192.168.201.2
192.168.202.2
Radio Network
Figure 1. Multi-network using SpeedNet ME Radios.
