Cabletron Systems brim f6 brim-f6 Manual De Usuario

Descargar
Página de 74
 
Chapter 1: 
 
Introduction
 
1-4
HSIM-F6 User’s Guide
 
1.4
OVERVIEW
 
The HSIM-F6 extends the functionality of certain Cabletron Systems 
interface modules or standalone hubs to include high-speed uplink 
capability. The HSIM-F6 allows remote connectivity using FDDI 
technology.
 
1.4.1
Features
 
Connectivity
 
The HSIM-F6 is equipped with slots for FDDI A and B ports. These two 
ports allow connection to the ring as a Dual Attached Station (DAS) using 
two FPIMs or as a Single Attached Station (SAS) using one FPIM.
As a DAS, the module or standalone hub that houses the HSIM-F6 
connects directly to the FDDI primary ring. This provides the reliability 
of an FDDI dual, counter-rotating ring topology. If one segment of the 
FDDI ring becomes disabled, this dual ring configuration provides 
redundancy and restores ring continuity.
As a SAS, the HSIM-F6 connects to the primary ring only by using a 
single FPIM on the HSIM-F6 to attach to the M port of an FDDI 
concentrator. 
The HSIM-F6 also supports dual homing. A dual homing configuration 
provides additional redundancy for the module or hub containing the 
HSIM-F6. Dual homing is a way of connecting to an FDDI ring through 
the Master (M type) ports of two separate dual attached concentrators. If 
one M type port or one segment fails, the redundant port or segment 
activates automatically to retain connection to the ring.
The HSIM-F6 is also capable of operating in full duplex mode, which 
creates a point-to-point link between two FDDI devices. This allows for a 
data rate of 200 Mbps, with each device transmitting and receiving at 
100 Mbps simultaneously
 
 
, provides 
instructions on configuring the HSIM-F6 to operate in full duplex mode.
 
Bridging
 
The HSIM-F6 provides translational bridging between any channels or 
ports in its host module or hub and the FDDI ring.