Cisco Prisma IP E100 Series Packet Ring Access Platform Data Sheet

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Ethernet Interface Solution for Multiple Services 
Scientific-Atlanta’s Prisma IP
™ 
optical access switches deliver a new level of carrier-class reliability and 
performance to Metropolitan Area Networks (MANs).  This packet-based platform provides full support for legacy 
voice and circuit services, while delivering a range of new differentiated data services.  
 
Ethernet has emerged as the dominant LAN technology worldwide.  The Prisma IP Ethernet 10/100 line card 
provides carriers with a flexible interface to support applications such as Virtual LAN (VLAN), Ethernet, and IP 
services.  This standards-based interface offers auto-sensing support for 10 or 100 Mbps services with complete 
rate-limiting capabilities for superior bandwidth management.  Prisma IP is based on Resilient Packet Transport 
(RPT), a superset of the emerging Resilient Packet Ring (RPR) protocol (IEEE 802.17).  Prisma IP provides 
carrier-class service for metropolitan optical networks requiring the highest level of availability, survivability, and 
scalability to 80 Gbps. 
 
 
Features 
•  IEEE 802.3 compliant 
•  Auto-sensing and auto-negotiating ports 
•  Hot swappable without service interruption 
•  Forwarding and queuing 
•  High packet throughput for line-rate forwarding 
•  Individual port assignment to wire or routing modes 
•  Rate-limiting of bandwidth per individual port 
•  Per-port configuration for speed and duplex settings 
•  Compatible with both M-Series and C-Series Prisma IP chassis 
 
 
Metro Ethernet Transport 
The Prisma IP Ethernet 10/100 line card is optimized for 
IP/Ethernet transport and provides Layer 2/3 support for switching 
and routing.  User ports can be configured for wire transport or for 
dynamic routing within the Prisma IP network.  Bandwidth 
provisioning in 64 Kbps increments is provided for each individual 
user port or VLAN.  Classification of packets per DiffServ is 
provided for up to three different classes.  The 10/100 line card 
supports both copper and fiber interfaces and offers 10 or 100 
Mbps auto-sensing ports.  Intra-card routing and switching is 
provided via an internal routing table and switch fabric located on 
each individual card.  The card also is capable of reading the IP 
TOS bits if required for Quality of Service classification.  
 
Prisma IP
 
Ethernet 10/100 Line Card 
Metro Optical Access Interface for Ethernet Services 
Digital Transport