Technical data

SPECTRUM and the NBR-620
Introduction NBR-620, NBR-420 and NBR-220
1-2 Management Module Guide
SPECTRUM and the NBR-620
TheNBR-620 is a multi-port intelligent bridging module.The NBR-620 has
two Bridging/Routing Interface Module (BRIM) slots. A BRIM performs the
same bridging functions as an EPIM: it transfers packets between different
channels. However, unlike EPIMs, BRIMs bridge these packets from one
transmission type to another (e.g., Ethernet to FDDI network backbones, etc.).
Possible BRIMs are as follows:
¥ BRIM-F6: FDDI Dual Attached Station (DAS) connection (currently
supported)
¥ BRIM-E6: Ethernet module with selectable media connections
¥ BRIM-W6: Wide Area Network connection
¥ BRIM-T6: Token Ring connection
¥ BRIM-A6: Asynchronous Transfer Mode connection
To model this device, create LAN_802_3 models representing each network
that the NBR-620 is bridging and connect them to the NBR-620 icon. The
software ÒconnectsÓ an ethernet icon to each of the ethernet ports (Channels
A, B, C, and D) and places them in the NBR-620 Device Topology (DevTop)
View. You can then copy these icons into the LAN_802_3 icons to allow
performance statistics to be gathered on each LAN_802_3 subnet. Figure 1-1
shows a possible NBR-620 conÞguration in SPECTRUM.
NOTE
If you are running a previous version of SPECTRUM, the following user
interface aspects may differ from those in SPECTRUM version 4.0:
¥Order and names of menu selections
¥ Navigational features (mouse button functionality)
For information about menu selections and navigating within previous
versions of SPECTRUM, refer to the S PECTRUM System UserÕs Guide . For
more information about menu selections and navigating within SPECTRUM
version 4.0, refer to the SPECTRUM Views reference .