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APPENDIX E: 10BASE-T Ethernet Bridge Module
Appendix E. 10BASE-T Ethernet
Bridge Module
E.1 Description
The Ethernet Bridge Module installs in the Managed Micro Rack system to provide
seamless Ethernet LAN extension. The Module bridges two physically separate
Ethernet LANs at the MAC level. Operation of the Module is transparent to higher
network level protocols such as TCP/IP, DECnet™, NetBIOS
®
, and IPX™. The
Ethernet Bridge Module is 802.3 compliant and supports PPP (RFC 1661) with
Bridging Control Protocol (RFC 1638).
Once installed in the local Managed Micro Rack, the Ethernet Bridge Module
works in a plug-and-play manner to forward LAN broadcasts, multicasts, and
frames destined for the peered Ethernet LAN at the remote end (the base unit at
the remote end must be equipped with an Ethernet Bridge module). Using the
Ethernet Bridge Module, peered Ethernet LANs can be linked over leased 2-
wire/4-wire, DDS, PCM, and campus fiber circuits.
The Ethernet Bridge Module plugs directly into the rear of a Rack Card Line
Driver (ME0001C or ME0004C). The Bridge Modules must be used in pairs.
Figure E-1 shows a typical installation.
Figure E-1. Typical application.
Corporate
Headquarters
Remote/Satellite
Office
Rackmounted Ethernet
WAN Bridge Module
2.3-Mbps
Leased Line
Ethernet Bridge
Module
LAN
LAN
