CLARION M10II INTRODUCTION
GETTING STARTED GUIDE
PAGE 2
workstation or a router. Both the workstation and the router employ a
single 802.3 source address that the M10 learns and uses for the
retransmission protocol. Thus, when the M10 receives a frame with the
destination address equal to the address of the attached Ethernet card, the
M10 sends the RF acknowledgment frame to the source modem. The
M10II can do this for multiple Ethernet source addresses.
There are two important situations in which the above single-source-
address constraint is violated: 802 MAC (media access control) level
bridging and wireless interconnection of 10BaseT hubs. Each of these is
important for general networking, and each presents the modem with
multiple source addresses from the wired side. The M10II maintains a list
of its wired side source addresses, and will acknowledge RF frames
addressed to these. Thus, the key new feature of the M10II is extension of
the retransmission protocol to multi-source-address configurations.
The M10II maintains acknowledgment-address tables, however, it is not a
bridge. For 802-compliant bridging the M10II can be connected to a MAC
bridge, with the MAC bridge providing address tables obtained via the
spanning-tree algorithm.
1.3
M10II APPLICATIONS
The M10II is a robust, 10 Mbps (Megabits Per Second) wireless multi-
point, multi-addressing modem designed to support wireless connections
across town, across the street or just across the hall for IEEE 802.3 and
Ethernet II (TCP/IP) LANs. It provides all the functionality of wired
LANs, without the physical constraints of the wire.
The M10II connects multiple workstations or workstations on multiple
wired Ethernet LANs. It builds and maintains a list of the workstations on
the wired Ethernet LAN to which it is connected, and shares this
information with other M10IIs. When a user on a wired LAN wants to
ACROSS TOWN
