Справочник Пользователя для Fluke 2640A

Handling Token Ring Networks

I

I-19

7.

 

Failure to communicate when using the Parallel to LAN Adapter (PLA)

In some computers the speed of the parallel port hardware is insufficient to
support the normal bi-directional communication used by the Silicom PLA. In
these rare cases, you must force use of the uni-directional communication on
this interface. You do this by adding the 

unidir

 switch to the driver.

If you are using the Trumpet TCP/IP package (isolated network), you place
the 

unidir

 switch on the command line in your 

autoexec.bat

 file where

the 

etpacket.com

 packet driver is loaded as follows:

The line in the 

autoexec.bat

 before the change:

c:\netdaq\etpacket.com int:60

The line in the 

autoexec.bat

 after the change:

c:\netdaq\etpacket.com int:60 unidir

If you are using the Newt TCP/IP package (General Network), you place the

unidir

 switch on a line in the driver information area of the

protocol.ini

 file (NDIS driver) as follows:

The lines in the 

protocol.ini

 file before the change:

[silicom]
drivername=epndis$

The lines in the 

protocol.ini

 file after the change:

[silicom]
drivername=epndis$
unidir

For further information on the 

unidir

 switch, see the Silicom SET User

Guide.

8.

 

Newt loads without error on a Novell work station, but cannot communicate
with NetDAQ instrument.

Be sure that there is only one 

net.cfg

 file, or that the one modified by the

newt installation program is also loaded by the Novell station.

If you need to install your NetDAQ system on an existing token ring network,
your network must contain a Gateway device (see “Network Interconnection
Devices” in this appendix). The Gateway must support both Ethernet and Token
Ring subnets, and must be capable of routing IP packets between these two
subnets. You will need to consult with your Network Administrator about setting
up the routing tables in the Ethernet to Token Ring Gateway device to allow
proper routing of IP packets.