SW5000中文资料Network Content Processor数据手册恩XP规格书

描述 Description

Overview The SW5000 Network Content Processor (NCP) is a high-performance processor optimized for Layer 4 protocol termination and Layer 5 to 7 content processing. The SW5000 performs hardware-based functions that accelerate packet and content processing. The SW5000 enables OEMs to build flexible and scalable network systems that run advanced line rate IP applications. It enables OEMs to develop best-in-class single-application or multi-application products, such as a security gateway with combined firewall, VPN, and intrusion detection features.
The SW5000 combines the performance of hardware with the flexibility of software. Processing-intensive functions are embedded in specialized silicon to maximize performance. Protocol state machine implementation and error handling reside under firmware control. This combined approach gives the SW5000 unparalleled scalability and flexibility. With 5 Gbps (full duplex) throughput, the SW5000 facilitates a wide range of system designs and performance options. The architecture provides a layered approach that takes advantage of industry-standard processors, coprocessors, and memory.
Unlike network processors, which examine data \"packet-by-packet\", the SW5000 performs stream-based content processing. By converting packet-based traffic into contiguous streams of data and processing the resulting streams, the SW5000 maximizes content processing efficiency.
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特性 Features

•Wire-speed silicon-based Layer 2 to 4 processing, including Layer 2 to 4 classification and full TCP termination

•High-performance silicon-based Layer 5 to 7 processing features, including content searching, examination, modification, and replication

•Advanced stream management and switching features, including:
Optimized use of memory and I/O bandwidth through zero-copy and other techniques
Stream scheduling with dynamic pipelining to maximize processing efficiency and flexibility

•An industry-standard programming model and instruction set for Layer 5 to 7 software development.
C compiler with GNU tool chain.
Sockets with Seaway Extensions



Performance

•Improves system price/performance by 10 to 20 times

•5 Gbps full duplex Layer 4 termination (for example, TCP and UDP)

•Control and management of 2 million concurrent Layer 4 sessions

•300,000 Layer 4 session setups per second

•20 Gbps stream switching (patented technology)

•66 million access control list (ACL) comparisons per second

•600,000 Layer 7 switching decisions per second

•Hardware-based content processing assists, including content searching at 17 Gbps and stream replication at 10 Gbps


Flexibility

•Implement any Layer 4 protocol in the IP suite (for example, TCP, UDP, SCTP)

•Content processing software can view the SW5000 as a \"fast TCP/IP stack\"

•Seamless 4.25 Gbps full duplex interface to state-of-the-art IPSec, SSL, and pattern-matching coprocessors

•64 K virtual domains providing unique security, IP addressing, or interface domains



Software Development Environment

•Graphical user interface

•C compiler and linker with GNU tool chain

•Functional simulator


Software

•Layer 4 firmware

•API library including an industry-standard sockets interface with extensions

•Reference applications