Cisco BPX 8650, Installation And Configuration Manual

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Cisco BPX 8600 Series Installation and Configuration
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
Chapter 1 The BPX Switch: Functional Overview
The BPX 8600 Series
•
BPX 8680 universal service node
• BPX 8680-IP (BPX + MGX 8850 + 7204 LSC)
BPX 8620
The Cisco BPX 8620 switch is a scalable, standards-compliant unit, fully compatible with:
• Cisco MGX™ 8800 series wide-area edge switch
•
Cisco MGX 8200 series edge concentrator
• Cisco IGX™ 8400 series wide-area switch
•
Cisco Service Expansion Shelf
The BPX multishelf architecture integrates both IP and ATM services; therefore, enabling you to deploy
widest range of value-added services in the industry. This architecture offer low-cost entry points for
small sites up to unprecedented port density and scalability for the very largest sites. Finally, it supports
both broadband services and narrowband services within a single platform.
The architecture supports both the broadband BPX switch and up to 16 edge concentrator shelves. The
scalability results in full utilization of broadband trunks, and allows the BPX switch to be expanded
incrementally to handle an almost unlimited number of subscribers.
The edge concentrators terminate traffic from a variety of interfaces, such as IP, Frame Relay, ATM, and
circuit emulation, and adapt non-ATM traffic into ATM cells. This traffic is aggregated and sent to the
BPX switch where it is switched on high-speed ATM links. This aggregation on a single platform
maximizes the density of broadband and narrowband ports. High-density aggregation of low-speed
services also optimizes the efficiency of the high-speed switching matrix and broadband card slots.
The multishelf view is a “logical” view. Physically, the edge concentrator shelves can be colocated with
the BPX switch or they may be located remotely. The connection between a shelf and the BPX switch is
a high-speed, optionally redundant ATM link.
The BPX switch consists of the BPX shelf with fifteen card slots that can be colocated with the
MGX 8200 or MGX 8800 and Service Expansion Shelf (SES) as required.
Three of the slots on the BPX switch shelf are reserved for common equipment cards. The other twelve
are general purpose slots used for network interface cards or service interface cards. The cards are
provided in sets, consisting of a front card and its associated back card.
The BPX shelf can be mounted in a rack enclosure that provides mounting for a colocated SES and the
MGX 8200 or MGX 8800 interface shelves.