Cisco Cisco ASR 1000 Series 40Gbps SPA Interface Processor データシート
Data Sheet
© 2010–2011 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Cisco 2-Port, 4-Port, and 8-Port OC-12c/STM-4 Packet over SONET
Shared Port Adapters
Shared Port Adapters
The Cisco
®
I-Flex design combines shared port adapters (SPAs) and SPA interface processors (SIPs),
using an extensible design that enables service prioritization for voice, video, and data services.
Enterprise and service provider customers can use the 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,
which 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 2/4/8-Port OC-12c/STM-4 Packet
over SONET SPAs (Cisco 2/4/8-Port OC-12 PoS SPAs; refer to Figure 1).
Figure 1. Cisco 2/4/8-Port OC-12 POS SPAs with SFP Optics
Product Overview
The Cisco 2/4/8-Port OC-12 POS SPAs are available on high-end Cisco Systems
®
routing platforms offering the
benefits of network scalability with lower initial costs and ease of upgrades. The Cisco SPA/SIP portfolio continues
the Cisco focus on investment protection along with consistent feature support, broad interface availability, and the
latest technology. The Cisco SPA/SIP portfolio allows different interfaces (Packet over SONET/SDH [POS], ATM,
Ethernet, and so on) to be deployed on the same interface processor.
A key feature of these SPAs is the multirate operating mode support. This allows ports to be configured at OC-3 or OC-
12 speeds. This gives the flexibility to configure some ports to run at OC-3 speeds, while the rest can run at OC-12
speeds. This requires different optics for different modes. The Cisco 2/4/8-Port OC-12 POS SPAs provide support for
Small Form-Factor Pluggable (SFP) interfaces. SFP modules are available in multiple optical reaches from 2 to 80 km.
Applications
Cisco 2/4/8-Port OC-12 POS SPAs can be used in multiple applications (Figure 2), including:
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Access and aggregation
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WAN uplinks
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Internet peering