IBM SG24-4817-00 Switch User Manual


 
This soft copy for use by IBM employees only.
4.5 ATM 4-Port 100 Mbps MIC Fiber Module and the ATM 4-Port 100 Mbps SC
Fiber Module
The ATM 4-Port 100 Mbps MIC Fiber Module and the ATM 4-Port 100 Mbps SC
Fiber Module are single-slot concentrator modules that are identical except for
they have MIC and SC connectors, respectively. They have the following
characteristics:
Hot-pluggable in any slot in the 8285 Expansion Chassis.
Each module provides four taxi ports, each capable of supporting 100 Mbps
(full-duplex). The traffic received from these ports will be multiplexed into
the backplane connection between the A4-FB100 module and the
switch-on-a-chip.
Support for workstation connections (UNI) up to 2 km from the 8285.
Support for a connection between two A4-FB100 ports (SSI/NNI) up to 3 km.
4.5.1 Sample Scenarios
The 4-port 100 Mbps modules are high-performance cards that are very
cost-effective for connecting high-bandwidth users and servers into a workgroup
or an ATM network. In addition, they can be used to provide redundant links to
a backbone or server to provide higher bandwidth and improved reliability.
Figure 17 and Figure 18 on page 47 show some ways the 4-port 100 Mbps
modules can be used with the 8285.
Figure 17. ATM 100 Mbps MIC/SC Fiber Module Workgroup Configuration
The first example, a workgroup configuration, shows how you might set up a
very cost-effective high-performance stand-alone workgroup, providing up to 100
Mbps bandwidth to as many as 16 power users, 25 Mbps of bandwidth to as
46 ATM Workgroup Solutions: Implementing the 8285 ATM Switch