
Installing and Maintaining BN Platforms
2-2 109352-E Rev. A
Backbone Link Node-2 Overview
The BLN-2 is a multiprotocol hardware platform and bridge designed to satisfy
the high-performance availability requirements of mission-critical backbone
internetworks. These networks transport information using communications
subsystems and protocols such as:
• Fiber Distributed Data Interface (FDDI)
• Point-to-Point Protocol (PPP)
• Systems Network Architecture (SNA)
The BLN-2 (F
igure 2-1) uses a symmetric multiprocessor architecture with Fast
Routing Engine (FRE and 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. The BLN-2 supports four routing engine
modules and up to 16 LAN/WAN interfaces (up to four FDDI).
The BLN-2 hardware platform features redundant power supplies and cooling
fans.
Figure 2-1. Backbone Link Node-2 (BLN-2)
POWER
RUN
BOOT
DIAG
B A C K B O N E N O D E
RESET
Komentáře k této Příručce