Cisco 4-Port OC3c/STM1c ATM Shared Port Adapter SPA-4XOC3-ATM= Scheda Tecnica
Codici prodotto
SPA-4XOC3-ATM=
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
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