Cisco Cisco ASR 1000 Series 40Gbps SPA Interface Processor Datenbogen

Data Sheet

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Cisco 2-Port ,4-Port OC-3c/STM-1c ATM, and Cisco 1-Port
OC-12c/STM-4c ATM SPA

The Cisco

I-Flex approach combines shared port adapters (SPA) and SPA interface

processors (SIP), providing an extensible design that enables service prioritization for

data, voice, and video services. Enterprise and service provider customers can take

advantage of improved slot economics resulting from modular port adapters that are

interchangeable across Cisco routing platforms. The I-Flex design maximizes connectivity

options and offers superior service intelligence through programmable interface

processors that deliver line-rate performance. I-Flex enhances speed-to-service revenue

and provides a rich set of quality of service (QoS) features for premium service delivery

while effectively reducing the overall cost of ownership. This data sheet contains the

specifications for the Cisco 2-Port and 4-Port OC-3c/STM-1c ATM Shared Port Adapters

(SPAs), and the Cisco 1-Port OC-12c/STM-4c ATM SPA (refer to Figure 1).

Figure 1. Cisco 2-Port and 4-Port OC-3 ATM SPAs and Cisco 1-Port OC-12 ATM SPA

Product Overview

This data sheet details the features of the new modular ATM SPAs for Cisco 7600 Series Routers

and Catalyst 6500 Series Switches. The Cisco ATM SPAs, in conjunction with other SPAs

implementing various types of network technologies, allow the user to flexibly build cost-effective

routing solutions focusing on point-of-presence (POP) edge, customer premises equipment (CPE),

and enterprise applications.

Designed for all telcos and Internet service providers (ISPs), the Cisco ATM SPAs support a

variety of port choices and granularity, including OC-3c/STM-1c and OC-12c/STM-4c interfaces for

worldwide use. These modules are designed to support the convergence of data, voice, and video

services, allowing customers to migrate existing voice and video traffic onto a corporate data

network for substantial cost savings. The Cisco ATM SPAs include a comprehensive ATM feature

set including per-virtual-circuit and per-virtual-path traffic shaping, ATM service classes including

constant bit rate (CBR), variable bit rate non-real time (VBR-nrt), variable bit rate real time (VBR-

rt), unspecified bit rate (UBR and UBR+), Multiprotocol Label Switching (MPLS), QoS, a high-

performance segmentation-and-reassembly (SAR) architecture, and support for a large number of

ATM virtual connections. All these features are based on industry specifications and standards. In