
Installing and Maintaining BN Platforms
3-2 109352-E Rev. A
Backbone Concentrator Node Overview
The BCN is a multiprotocol router/bridge designed to satisfy the
high-performance availability requirements of the most demanding,
mission-critical backbone internetworks. These networks transport information
using communications subsystems and protocols such as:
• Fiber Distributed Data Interface (FDDI)
• T1/T3 synchronous lines
• Asynchronous Transfer Mode (ATM)
• Systems Network Architecture
The BCN (F
igure 3-1) uses a symmetric multiprocessor architecture with Fast
Routing Engine (FRE or FRE-2) processor modules, or ATM Routing Engine
(ARE) processor modules, along with the Bay Networks 1 Gb/s Parallel Packet
Express (PPX) processor interconnect. This combination delivers industry-leading
performance.
The BCN supports up to 13 ILI sets. The BCN RLC supports up to 10 ILI sets.
Caution: Inspect all items for any shipping damage. In particular, ensure that
the ports on the rear panel are not damaged. If you detect any damaged or
missing items, do not attempt to install the BCN. Contact the Bay Networks
Technical Response Center.
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