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INTRODUCTION
Management
An RS-232 console port gives you direct access to FDMMIM Local
Management. Here you can check bridge statistics, and control the
bridge and FDDI port configuration. The FDMMIM also supports
SNMP network management tools such as Cabletron Systems’
SPECTRUM products.
Shared Memory
The FDMMIM has 4 Mbytes of DRAM buffer memory which it uses
for storing data frames. The on-board processor and other support
logic also use this memory.
Local Memory
In addition to the buffer memory, the FDMMIM CPU operates with
4 Mbytes of DRAM, and uses 512 Kbytes of FLASH memory to store
its on-board software.
Battery Back-up RAM
The FDMMIM saves its Local Management statistics and operating
parameters in battery backed up RAM. The battery retains user-
configured settings, when the FDMMIM loses power or is turned off.
Source Address Table Size
The FDMMIM uses a learning and filtering algorithm and can retain
up to 8,192 source address static or dynamic table entries.
Spanning Tree Algorithm
The FDMMIM supports both 802.1d and DEC Spanning Tree
Algorithm (STA) protocols.
FlASH EEPROM Memory Support
As Cabletron Systems makes enhancements to Local Management,
you can upgrade your FDMMIM by downloading new software
images into the FDMMIM FLASH EEPROM (electrically erasable
programmable read only memory).
Through Local Management, you can control the download path of
an image file between your FDMMIM and a network server, such as
a remote network management tool like Remote LANVIEW/Windows
or even a UNIX workstation. The FDMMIM also provides a way to
broadcast a request for an image file using the BOOTP switch.
Chapter 6 provides more information regarding image file download
using FDMMIM Local Management or the BOOTP switch.