Cisco Cisco ASR 1000 Series 40Gbps SPA Interface Processor Data Sheet

 

 

Data Sheet 

© 2016 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. 

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The Cisco ATM SPAs address the growing demand for improved ATM QoS features, which are combined with the 

advanced Layer 3 class-of-service (CoS) capabilities provided by various Cisco routers. Robust QoS mechanisms 

help prioritize traffic from traditional and high-speed LANs over an ATM network. Network managers can now cost-

effectively terminate high-speed ATM, enabling rich QoS features for aggregation or campus applications. 

The Cisco ATM SPAs can be inserted in the Cisco SIPs that support various edge services such as: 

● 

IPv4, IPv6, and MPLS hardware-assisted forwarding 

● 

Enhanced security features such as extended access control lists (ACLs), Unicast Return Path Forwarding 

(URPF), Internet Control Message Protocol (ICMP) rate limiting, and others 

● 

Extensive QoS implementation based on either "classical" QoS (three type-of-service [ToS] bits), 

Differentiated Services (DiffServ [six DiffServe code point (DSCP) bits]), or MPLS (3 bits EXP) 

● 

Enhanced NetFlow, statistics, and billing data to allow service providers to generate different billing profiles for 

their customers 

● 

MPLS-VPN support that allows for Layer 3 VPN deployments and various related applications 

● 

Any Transport over MPLS (AtoM) or pseudowire edge-to-edge emulation 3 (PWE3) support for transport 

solutions 

The Cisco ATM SPAs use replaceable Small Form-Factor Pluggable (SFP) optical modules that allow customers the 

flexibility to use different optical interfaces on the same SPA. The Cisco ATM SPAs are hot-swappable and support 

service-transparent online insertion and removal (OIR), allowing removal of the SPA without impacting the interface 

processor and other SPAs. 

The Cisco ATM SPAs are designed for a wide range of network applications. The specific combination of ATM 

features and standards makes the Cisco ATM SPAs ideal for both enterprise-based ATM WANs and service provider 

infrastructures. 

ATM technology is now a favored choice for very high-bandwidth corporate connectivity across an enterprise WAN. 

Providing connectivity to geographically dispersed facilities, typical ATM WAN interfaces range from 34 to 622 Mbps. 

These very large WAN 

“pipes” supply ample bandwidth for the needs of corporate infrastructures today, with room for 

growth in the future. Enterprise-based ATM WANs can be deployed through private networks or through a public 

ATM service from large service providers. 

With the many advanced ATM capabilities and support for MPLS and QoS (such as per-virtual-circuit and per-virtual-

path traffic shaping), the Cisco ATM SPAs are ideal for interconnecting Cisco XR 12000/CRS-1 Carrier Routing 

System at central sites or larger remote sites through an enterprise-based ATM WAN. The Cisco ASR 1000 Series 

can be deployed for WAN aggregation of branch offices. Through OC-3c/STM-1c or OC-12c/STM-4c ATM links, the 

Cisco ATM SPAs can be connected to any standards-based ATM WAN switch, including the Cisco LightStream

®

 

1010, Cisco Catalyst

®

 8500 Series, Cisco MGX

®

 8800 Series, Cisco BPX 8600 Series, and Cisco IGX 8400 Series at 

the switching core. 

In the campus backbone or metropolitan-area network (MAN), the OC-12c/STM-4c provides the same scaled-up 

ATM bandwidth as in the POP when the bandwidth between the ATM switches is increased. 

The Cisco ATM SPAs allow you to combine a diverse range of LAN technologies, including Fast Ethernet and Gigabit 

Ethernet, with ATM in enterprise deployments.