RAD Data comm MBE10-8 Principles of Operation, Bridge Mode Compatibility, MBE10-1 Operation

Chapter 1 Introduction MBE Family Installation and Operation Manual

Bridge Mode Compatibility

Most members of the MBE range of products are intercompatible (see

Table 1-1).

Note

Additional bridges cannot be connected to the remote LAN. However, no limitations on additional bridging or routing apply to the main LAN.

Table 1-1. Bridge Mode Product Intercompatibility

Product Compatibility

Main	MBE-1	MBE-8	MBE	MBE	MBE	MBE	MBE-RAS MBE-		RR-MBE
Remote			10-1	10-1D	10-8	10-8D		RAS/A	10-8D
MBE-1**		NA						NA	
MBE-8**	NA		NA	NA				NA	
MBE10-1									
MBE10-1D									
MBE10-8	NA		NA	NA					
MBE10-8D	NA		NA	NA					
RR-MBE-8D	NA		NA	NA					

**Earlier version without RJ-45 control port on front panel

 Indicates unconditional compatibility

NA Not Applicable

Principles of Operation

MBE10-1 Operation

The remote MBE learns the address of the remote workstation connected to it when the workstation attempts to access the network. The remote MBE then uses this workstation address to request the local MBE to insert into the local (main) LAN. The remote MBE forwards all frames originating from the remote workstation. The local MBE will forward to the link only those frames destined for the remote workstation including broadcast and multicast messages, unless they have been masked out.

MBE10-1D Operation

The remote MBE units on both links update the local MBE with the addresses of the remote workstation attached to it. Each remote MBE forwards to the link all frames destined for the local LAN. The local MBE forwards to a particular link only those frames destined for a workstation connected to that link. Broadcast and multicast messages are forwarded to both links, unless they have been masked out.

1-6 Functional Description

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