User's Manual Part 1

32 APCD-LM043-8.0 (DRAFT C)
3: Detailed Description
Figure 19 Switched Ethernet Mode and Through Only Mode
In routed mode, normal end user traffic is Routed in the CCU between the Ethernet and radio
subnets.
In Switched Ethernet mode, the LMS4000 acts as an Ethernet switch, with the CCU Ethernet
port, CCU application, each EUM application, and each EUM Ethernet port acting as a switch
port.
In Through Only mode, packets received from an EUM are passed to the CCU application
and/or the Ethernet port, but not to another EUM.
Gatew ay
Router
10BaseT
Ethernet MAC
IP
TCP/UDP
Applications
(email,
brow ser, ftp,
telnet, ICQ,
VoIP, ...)
1
2
3
4
5 - 7
OSI
Layer
End-User's
Computer
10BaseT
Ethernet
MA C
IP Port Filtering
EUM3000
PMA C
DSSS
Radio
10BaseT
Ethernet
MA C
IP Port Filtering
CCU3000
DSSS
Radio
Backhaul
Internet
Connection
Auth/Reg
PMAC
Auth/Reg
Ethernet Bridging
Ethernet Sw itch
TCP/UDP/IP
TCP/UDP/IP
EUM Application
CCU Application
DHCP
Relay
Radio Subnet