Harris Constellation - Figure 6-1: Constellation TCP;IP-To-Netcom Connectivity

Constellation™ November 2003
6-2 IP Communication Stack and IP Applications
Figure 6-1: Constellation TCP/IP-to-Netcom connectivity
Protocol Layers
To provide TCP/IP service within the Constellation Network, the TCP/IP suite
requires a physical and a data link layer assistance. TCP/IP over Ethernet is
configured with Ethernet in the data link layer and a twisted-pair cable in the
physical layer.
In Harris’ TCP/IP over Netcom architecture, the microwave radio replaces the
twisted-pair cable and Netcom replaces Ethernet.
Figure 6-2 is a comparison of the two protocol layer schemes.
Net Manager #1
Net Manager #2
Ethernet
Network
(Intra or Inter)
Netcom
Node
#110
Netcom
Node
#111
Netcom
Node
#112
Netcom
Node
#113
Network
Interface
(802.3)
Netcom
Node
#133
Netcom
Node
#130
Netcom
Node
#131
Netcom
Node
#132
Netcom
Node
#122
Netcom
Node
#121
Netcom
Node
#120
Netcom
Node
#123
Constellation Network
C&M message delivery via Netcom
Note: Network Interface and Netcom
are not the same subnet.