Spirent Communications Announces IS-IS Routing Emulation and Traffic Generation on the Adtech AX/4000 Platform.Business Editors/Technology Writers Networld+Interop 2001 LAS VEGAS--(BUSINESS WIRE)--May 8, 2001 Spirent Communications(TM) (Booth No. 7089) today announced an Intermediate System to Intermediate System Routing Emulation Option for its AX/4000 Broadband Test System. Combined with the AX/4000's real-time, full-rate traffic generation and analysis, this new option allows users to validate IS-IS (Intermediate System to Intermediate System) An ISO protocol that provides dynamic routing between routers. IS-IS is an interior gateway protocol (IGP) and was the first comprehensive link state protocol. implementations for highly stressed carrier networks. The IS-IS Routing Protocol has been developed for large routing domains consisting of combinations of many different types of sub-networks. The IS-IS protocol has some inherent benefits, particularly in traffic engineering, which has made it the Internal Gateway Protocol of choice for network architects who are designing Multi-Protocol Label Switched networks. The IS-IS routing protocol provides the underlying network topology information, which will provide traffic-engineering metrics suited for MPLS (1) (MultiProtocol Lambda Switching) The earlier name for GMPLS. See GMPLS. (2) (MultiProtocol Label Switching) A standard from the IETF for including routing information in the packets of an IP network. . "Spirent's IS-IS Routing Emulation Option provides Level 1, Level 2, and combined Level 1 and 2 emulation for point-to-point links or broadcast networks with the capability of handling full-rate generation and analysis at OC-3 through OC-192, making it one of the most robust testing tools in the marketplace today," said Alan Sguigna, vice president of marketing, Spirent Communications, Adtech Division. "By providing a comprehensive set of Quality of Service performance metrics for data flows across advertised routes, makers of next generation Gigabit and Terabit Routers can now be assured that their products will deliver the expected network performance and predictability in the real-world." The IS-IS Routing Emulation Option provides convenient network set-up via its graphical user interface graphical user interface (GUI) Computer display format that allows the user to select commands, call up files, start programs, and do other routine tasks by using a mouse to point to pictorial symbols (icons) or lists of menu choices on the screen as opposed to having to with network addresses specified in Classless Inter-Domain Routing (networking) Classless Inter-Domain Routing - (CIDR) /sid*r/ A technique that summarises a block of Internet addresses in a routing table as an address in dotted decimal notation followed by a forward slash and a two-digit decimal number giving the number of leading one bits in the format. The CIDR (Classless Inter-Domain Routing) An expansion of the IP addressing system that allows for a more efficient and appropriate allocation of addresses. The original class-based method used fixed fields for network IDs, which was wasteful. prefix distribution table lists prefix lengths, the number of networks associated with that prefix length and their associated starting IP addresses. Users also have the flexibility to control and configure IS-IS Link State Packet parameters. Using IS-IS LSPs, users will have the ability to build realistic emulated networks within the AX/4000 to be advertised to a device or system under test. Given the various types of LSPs and large blocks of network address prefixes, the IS-IS option provides users with a complete solution for today's complex network configurations. In addition, Spirent's IS-IS Routing Emulation Option establishes multiple adjacencies while performing real time IP QoS traffic generation and analysis for real-world control and data plane stress testing. This IP QoS capability includes sophisticated real-time distribution models with variable IP packet lengths and interarrival times plus auto-identification and analysis of incoming substreams based on virtually any type of IP traffic classification. Users can also perform IS-IS emulation over a variety of platforms including Packet over SONET A metropolitan area network (MAN) or wide area network (WAN) transport technology that carries IP packets directly over SONET transmission without any data link facility such as ATM in between. OC-3 through OC-192, 10/100/1000 Ethernet, and IP over ATM. Spirent Communications will be demonstrating the IS-IS Routing Emulation Option in booth No. 7089 at Networld+Interop, in Las Vegas, May 8-10, 2001. About Spirent Communications Spirent Communications unites the best in performance analysis technology with network operations expertise. The company's award-winning solutions enable customers to accelerate the development, deployment and assurance of next-generation network equipment and services worldwide. Spirent Communications designs and manufactures Adtech, DLS DLS abbr. Doctor of Library Science , Edgcumbe, GSS (storage) GSS - Group-Sweeping Scheduling. , Hekimian, Net-HOPPER, SmartBits, TAS TAS abbr. 1. telephone answering system 2. true airspeed and Zarak products. More than 2,500 of the world's leading network and terminal equipment manufacturers, network service providers, corporate enterprises and test laboratories rely on our first-to-market products to verify and measure the performance and services of networks and communications devices. For more information on Spirent Communications or its products, visit the Web site at www.spirentcom.com or call 1-800-927-2660. Spirent plc is the parent of Spirent Communications. Spirent is quoted on the London Stock Exchange London Stock Exchange London marketplace for securities. It was formed in 1773 by a group of stockbrokers who had been doing business informally in local coffeehouses. , ticker SPT. The company operates a Level 1 American Depository Receipt American Depository Receipt n. called in the banking trade an ADR, it is a receipt issued by American banks to Americans as a substitute for actual ownership of shares of foreign stocks. program (ticker: SPNUY; CUSIP number: 84856M100). For information, contact Brian Heston, The Bank of New York The Bank of New York, abbrieviated to BNY, was a global financial services company that existed until its merger with the Mellon Financial Corporation on July 2, 2007.[1] The bank now continues under the new name of The Bank of New York Mellon Corporation. , American Depository Receipts, 101 Barclay St, 22 West, New York, N.Y. 10286, phone 212/815-3938, fax 212/571-3050, e-mail: bheston@bankofny.com, www.adrbny.com. Further information about Spirent plc can be found at www.spirent.com. Note to Editors: Spirent and the Spirent logo are trademarks of Spirent plc. All other trademarks or registered trademarks are held by their respective companies. All rights reserved. |
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