Cabletron Systems T2015 Guia de Instalação descarregar pdf (Página 382)

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372 Installation Guide for Clients

The starting address of the shared RAM segment used by these network

adapters is configured by a line in the PROTOCOL.INI file. Edit the

PROTOCOL.INI file, and find the block of lines that start with the

comment “IBM Token Ring” and include a line like

DRIVERNAME=IBMTOK$ or DRIVERNAME=IBMTOK2$.

Look for the keyword RAM. The value after RAM is the starting

address of shared RAM for this network adapter.

The following is an example of the lines in a PROTOCOL.INI file for

an IBM Token-Ring network adapter. In this example, the shared RAM

address is 0xD000.

If the block does not contain the keyword RAM, the shared RAM

address is set to the ROM address plus the shared RAM buffer size. The

ROM address and the shared RAM buffer size (8K/0x200 or

16K/0x400) is set by a jumper on the network adapter. For more

information about these jumpers, see the manual for this network

adapter.

For example, assume the ROM address is 0xCC00, the RAM address is

0xD000, and the shared RAM buffer size is 8K (or 0x200). The ROM

segment from 0xCC00 to 0xCDFF must be excluded. The shared RAM

segment from 0xD000 to 0xD1FF must also be excluded. The following

lines show this:

For another example, assume the ROM address is 0xCC00, the RAM

address is not specified, and the shared RAM buffer size is 16K (or

0x400). The ROM segment from 0xCC00 to 0xCDFF must be

excluded. Because no value is given for the RAM address, the shared

RAM address is the ROM address (0xCC00) plus the shared RAM

buffer size (0x400), or 0xD000. So, the shared RAM segment to be

excluded is 0xD000 through 0xD3FF.

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Cabletron Systems T2015 Guia de Instalação Página 382

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