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D2
Application Note 2
Configuring dimmPCI Modules for Communication
April 21, 2003
Version 0.1
Authors: Bernice Lau, Robert Austen
Abstract
On a dimmPCI backplane, there are several possible slots in which a dimmPCI may be inserted, the system slot
or the peripheral slots. With the correct options compiled into the kernel and system configuration, the two
modules can be set up to communicate with each other. The communication is achieved using the PCI I2O
transport layer to send ethernet packets over the PCI bus to another likewise configured module.
Introduction
In order to connect the two dimmPCI modules, it is necessary to set up the hardware as a subnet. A NETdimm
must be in the system slot to interface to the local network through the ethernet port.
Local Network
Outside
Network
Gateway
out
192.168.10.1
192.168.10.5
192.168.10. 37
eth
GW in
eth0
192.168.10.87
192.168.7.1
pci0
outside
interface
inside
interface
GW out
PCI
pci0
192.168.7.2
Peripheral Slot
dimmPCI module
System Slot
NETdimm
dimmPCI Subnet 192.168.7.0