Cabletron Systems ETWMIM User Manual page 12

Hot Swapping
Like all Cabletron Systems Media Interface Modules (MIMs), you can
remove the ETWMIM from, and insert it into, an MMAC without
turning off the power to the rest of the modules in the hub.
Flash EEPROMs
The ETWMIM uses Flash Electrically Erasable Programmable Read
Only Memory (EEPROM) that allows you to download new and
updated firmware using Remote LANVIEW/Windows, version 2.3 or
later or any device using BOOTP or TFTP protocols.
The ETWMIM supports the following download applications:
• Standard Download - the ETWMIM automatically disables
management while you download the new firmware image.
• Runtime Download - the ETWMIM continues to operate
without interruption while you download the new firmware
image. The ETWMIM stores the new image in Flash memory.
It continues to operate with the old firmware image executing
in processor memory until you reset the ETWMIM.
Management
An RS-232 port gives you direct access to ETWMIM Local
Management. Local Management provides unique set and control
capabilities for your ETWMIM. You access Local Management
through the COM 2 port using a VT series terminal, or a computer
running VT emulation software.
The ETWMIM also supports SNMP (Simple Network Management
Protocol) network management tools such as Cabletron Systems'
SPECTRUM products.
COM 1 / COM 2
The COM 1 port is reserved for future ETWMIM enhancements. The
COM 2 port provides access to ETWMIM Local Management.
Ethernet Connectivity
The ETWMIM allows for various connectivity options. From an
Ethernet standpoint, you can connect either through Channel A (the
Ethernet Channel) on your MMAC backplane, or from the optional
EPIM connection on the front panel.
INTRODUCTION
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