RAD Data comm MBE10-1D Manuel D’Utilisation
MBE Family Installation and Operation Manual
Chapter 1 Introduction
Functional Description
1-9
Bridge Mode Filtering Block (MBE10-8 and MBE10-8D only)
In addition to MBE10-1 functions, MBE10-8 and MBE10-8D have a filtering block.
The filtering block in the local MBE compares the destination address of every
frame transmitted on the main LAN to the table of remote workstation addresses.
The result of the filtering block comparison generates a copy/not copy frame
command for the LAN processor.
If a frame is addressed to one of the remote workstations, the local MBE forwards
The filtering block in the local MBE compares the destination address of every
frame transmitted on the main LAN to the table of remote workstation addresses.
The result of the filtering block comparison generates a copy/not copy frame
command for the LAN processor.
If a frame is addressed to one of the remote workstations, the local MBE forwards
this frame to the link. The remote MBE compares the destination address of every
frame transmitted on the remote LAN with the remote workstation address table.
All frames in the remote LAN, containing destination addresses not included in the
remote workstation address table, will be forwarded to the link by the remote
MBE.
If the frame destination address is of the broadcast or multicast type, the filtering
block compares the source address of the frame to the remote workstation address
table. This source address check results in a copy/not copy command for the LAN
frame transmitted on the remote LAN with the remote workstation address table.
All frames in the remote LAN, containing destination addresses not included in the
remote workstation address table, will be forwarded to the link by the remote
MBE.
If the frame destination address is of the broadcast or multicast type, the filtering
block compares the source address of the frame to the remote workstation address
table. This source address check results in a copy/not copy command for the LAN
processor.
Link Interface
The link interface provides the physical connection to either V.24/RS-232, V.35,
RS-530, V.36, 4W, X.21, ISDN or DDS links. The 4W interface provides an
RS-530, V.36, 4W, X.21, ISDN or DDS links. The 4W interface provides an
internal short range modem with internal clock. DCE mode is provided for bench
testing by V.24 and V.35 link interfaces. In DCE mode, the internal clock rate can
be adjusted by selecting options from the internal clock rate setup menu (see
testing by V.24 and V.35 link interfaces. In DCE mode, the internal clock rate can
be adjusted by selecting options from the internal clock rate setup menu (see
"Internal Clock Rate Setup"
in the
LAN RANger Series Configuration Guide
).
Main Processor and Communication Processor
The main processor controls the LAN and communication processors. It performs
buffer management and transfers the frames received from the LAN for
transmission to the link and vice versa.
The communication processor provides an HDLC link for transmission and
reception of frames to the main processor. Error checks and retransmissions ensure
an error-free link.
buffer management and transfers the frames received from the LAN for
transmission to the link and vice versa.
The communication processor provides an HDLC link for transmission and
reception of frames to the main processor. Error checks and retransmissions ensure
an error-free link.
Power Supply
The MBE power supply provides required operating voltages. The power supply
input ranges between 100 VAC to 240 VAC.
input ranges between 100 VAC to 240 VAC.
Asynchronous Control Port
The RJ-45 control port provides setup, configuration, and monitoring and
download interface using an asynchronous ASCII terminal as a terminal emulator.
Management
Quick setup and configuration is performed via a terminal emulator attached to
the control port, or via TELNET access to the device over the LAN or WAN.
An SNMP agent provides in-band or out-of-band management by RADview or by
the control port, or via TELNET access to the device over the LAN or WAN.
An SNMP agent provides in-band or out-of-band management by RADview or by
any other standard SNMP management station.
Software downloading is available through the control port, using XMODEM, and
through the LAN or WAN using TFTP. Parameter file downloading and uploading
is available through the LAN or WAN using TFTP.
Software downloading is available through the control port, using XMODEM, and
through the LAN or WAN using TFTP. Parameter file downloading and uploading
is available through the LAN or WAN using TFTP.
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