Cabletron Systems DMS-100 Manual De Usuario
24 Chapter 1: Introduction to the EIU
297-8991-910 Standard 03.01 August 1999
Figure 1
Overall architecture of enhanced SuperNode system
DMS-bus interface and expansion
Two methods are used to interface processing engines to the DMS-bus. Direct
links between the processors and the DMS-bus is the primary method for
establishing this connection. A secondary method involves the LPP, which is
used to fan out the message switch (MS). By having two methods, the DMS-
100 switch has the flexibility for provisioning software functions to processors
based on price, performance, and packaging criteria.
links between the processors and the DMS-bus is the primary method for
establishing this connection. A secondary method involves the LPP, which is
used to fan out the message switch (MS). By having two methods, the DMS-
100 switch has the flexibility for provisioning software functions to processors
based on price, performance, and packaging criteria.
The LPP extends the MS fanout within a single cabinet. This fanout is
accomplished by using a second-level MS pair to provide switching, and by
extending the messaging capability through an extended messaging bus. These
accomplished by using a second-level MS pair to provide switching, and by
extending the messaging capability through an extended messaging bus. These
SLM
Network
IOC
DMS-bus
9-track tape
SOS
UNIX
SOS
SOS
AP
(provisionable
computing)
(provisionable
computing)
AP
(provisionable
computing)
(provisionable
computing)
FP
(flexible
file system)
(flexible
file system)
Ethernet
Communications server
(flexible data
communications interface)
(flexible data
communications interface)
X.25
Workstation
EIU
DMS-core