SmartBits White paper

01. Broadband Access Testing Methodology - Broadband access testing presents some unique issues and challenges for test engineers. For example, many broadband access methods have asymmetrical bandwidth and the interpretation of the performance figures differ depending on the direction of transmission. This paper focuses on the test and analysis issues for both xDSL and cable modem, including a discussion of the industry standard test procedures.

02. MPLS Virtual Private Networks - This white paper provides an introduction to MPLS Virtual Private Networks, including performance and security over the Internet.

03. Multi-Protocol Label Switching (MPLS) and Core Router Testing - In the past few years, core routers have undergone rapid redesign in order to meet the changing requirements of the market. In response to these requirements, the new core routers have implemented many of the routing/switching functions in specialized hardware. Many also support Multi-Protocol Label Switching (MPLS) in addition to traditional IP routing protocols such as BGP, OSPF, and IS-IS.

04. Multilayer Switch Testing and Analysis - With the increasing deployment of multilayer switches, the networking industry has focused extensively on performance testing and analysis issues. Equipment manufacturers are interested in understanding the performance of their devices under load and ways to improve throughput. Service providers, who are deploying high-speed switches in their networks, are interested in testing the devices to verify their ability to provide service.

05. Performance Measurement within the Tolerances of the IEEE Specifications - This document addresses the issues and constraints of measuring the performance of Ethernet network devices given the tolerances allowed by the IEEE 802.3. The focus has been put on IEEE 802.3z Gigabit Ethernet standard, since this represents the most extreme test of both devices and measurement technology. The same rationale may also be used for 10/100 Mbps Ethernet.

06. The Key To QoS Testing - The concept of a converged network transporting voice and multimedia in addition to data, as a way to reduce networking costs has become accepted. Consequently, in addition to handling increased traffic, now the network must also contend with the delay-sensitive nature of voice and multimedia.

07. Testing and Monitoring Large Mission-Critical Networks - The networks of NetWorld+Interop provide an opportunity for vendors and technical staff to prove capabilities and to demonstrate their expertise in a wide range of technologies and applications. This white paper by CF2 Group's Curt Franklin discusses the lessons learned as a result of Spirent Communications role in testing and monitoring the 2002 Networld+Interop show floor and iLabs networks.

08. Voice over IP (VoIP) - Interest in Voice over IP (VoIP) has increased steadily over the past few years. Enterprises, ISPs, ITSPs (Internet Telephony Service Providers), and carriers view VoIP as a viable way to implement packet voice. Reasons for implementing VoIP typically include tollbypass, network consolidation, and service convergence. Toll-bypass allows long-distance calls to be placed without incurring the usual toll charges.

Adtech White paper
01. Broadband Access Architecture (PPP) - Many Internet users (not just the proverbial power users) are willing to pay a premium for high-speed broadband access. Network providers (especially the ILECs) are rapidly deploying broadband services to gain market share and capture some of this incremental revenue.

02. Testing the Protocol of the Internet - Border Gateway Protocol (BGP) is the protocol of the Internet. This Spirent Communications White Paper explains the origins of BGP, provides an overview of the key technology concepts behind the protocol, and discusses the issues faced by equipment vendors and network service providers in implementing and testing BGP networks and equipment.

03. Gigabit Ethernet and ATM Interworking - At a time when the convergence of voice, data, video, and other consumer and enterprise demands are being placed on high-speed networks, the extent to which various technologies and components interoperate remains a major concern for the telecommunications industry. This paper covers the basics of router testing in an interworking environment and points out specific areas of concern using an example of Gigabit Ethernet and ATM interworking.

04. MPLS/BGP Virtual Private Networks - Multi-Protocol Label Switching (MPLS) is the future routing technology of the Internet, allowing service providers to optimize their networks, provide Quality of Service (QoS) guarantees, and offer incremental value-added services. A key benefit of MPLS is its support for Virtual Private Networks (VPNs) through RFC-2547. This white paper focuses on MPLS VPNs and addresses the testing requirements for RFC-2547 implementations.

05. Multi-Channel Testing - With the prevalence of channelization in today's metro networks, the ability to perform multi-channel testing can increase efficiency and network performance while subsequently lowering testing costs. This white paper provides an overview of the transport technology and the testing challenges found in metro networks and discusses how multi-channel testing can address those challenges. The paper includes actual examples, configurations, and a list of benefits from multi-channel testing.

06. Optical Testing Imperatives in Next Generation Networks - Testing has always been important to the telecommunications industry and there are new reasons to suggest that the role of implementing testing technologies and paradigms - once the realm of technicians and managers - will have to be considered by higher-level enterprise executives. The reasons supporting this enterprise-wide approach by optical network equipment manufacturers and network service providers.

07. Remote Distributed Testing - As the demand for network resources grows, broadband network providers constantly look for ways to improve network performance and efficiency while minimizing spending on new switching equipment. As a result, creative network engineers now incorporate sophisticated new remote distributed testing (RDT) technologies into their latest network design strategies.

Abacus White paper

01. Voice Quality Testing

Spirent TEST CASE
01. Gigabit IDS Test - The NSS Group in the United Kingdom compared the Intrusion Detection capabilities of Cisco, Intrusion Inc, IntruVert, ISS and Symantec with SMB-6000, Avalanche and Reflector products. They tested attack recognition, performance under load, IDS evasion techniques and a stateful operation test.

02. Foundry SI 100 Sneak Preview - Using Avalanche and Reflector, Network Computing performed a sneak preview of Foundry's midsize ServerIron 100 content-aware switch.

03. 10GigE Enterprise Backbone Switch Test - Network Test measured the performance of 10 Gigabit Ethernet switches from Avaya, Force10 Networks, Foundry Networks, HP and Nortel using Spirent 10 Gig and 1 Gig Ethernet gear. The results of the throughput, delay and jitter performance tests were displayed in Network World magazine.

04. Alcatel RSVP-TE OC-48 Private Test - EANTC was hired by Alcatel to test it's 7770RCP product with OC-48 and RSVP-TE. The Spirent AX/4000 system emulates ingress, egress and intermediate Label Switched Routers to verify the capabilities of the Alcatel device.

05. Tolly Tests Quintum Technologies' Switch with Abacus - Tolly utilized the bulk call generation capabilities of the Spirent Abacus in a recent test involving the Quintum Technologies Tenor VoIP Multipath Switch, demonstrating the Cisco interoperability and bandwidth savings of the Quintum switch.

06. Foundry 60-port Gigabit Fiber Switch Test - Foundry Networks, Inc. commissioned The Tolly Group to evaluate a pair of enterprise-class Layer2/3 switches: the FastIron 400 switch populated with 32 Gigabit Ethernet ports and the FastIron Edge 9604 with 96 10/100 Mbit/s ports and four Gigabit Ethernet ports. They used the SMB-6000 with SmartFlow to generate traffic and measure VoIP call quality, latency throughput and high-availability fail-over.

07. DOCSIS 2.0 Certification and Qualification - CableLabs has awarded it's first DOCSIS 2.0 certification to five vendors using Spirent equipment during the recently completed round of certification testing. Those receiving certification are Motorola, Scientific-Atlanta, Terayon, Texas Instruments and Xrosstech. CableLabs primarily uses Spirent gear in all its certification testing.

08. Cisco 'First Look' 112-port SAN Switch Test - Cisco hired Miercom to review Cisco's first storage switch, the MDS-9509, with the results on the front page of Network World. The 112-port Multilayer DataCenter Switch (MDS) 9509 demonstrated wire-speed throughput for small and large frames at 2G bit/sec rates.

09. Cisco Catalyst 4507R Performance and Feature Test - Veritest used SMB-6000 and SmartFlow to test 240 ports of the Cisco 4507R switch. They tested Layer 2 and 3 performance (partial and full mesh), QoS shaping, marking and policing, and layer 4 access control list (ACL) forwarding.

10. Metro Edge Routers - Network Test used the Spirent AX/4000 product line to test the edge router solutions from Laurel and Redback. Layer 2 and 3 MPLS VPN's and routing capacity were measured. Forty Spirent personnel and nine months of labor were needed to conduct this test.

11. PC Magazine WebAvalanche Security Test - PC Magazine tested 5 firewall vendors (SnapGear, SonicWall, Symantec, WatchGuard, ZyXEL) with a Spirent WebAvalanche, sending a steady load to the firewalls and measuring the successful transactions per second to gage performance.

12. 10Gig Ethernet Plug Fest - Spirent 10 Gig gear was used at the University of New Hampshire's InterOperability Lab 10 Gigabit Ethernet Consortium interoperability event - the largest and most diverse of its kind. For the first time, CJPAT was used to successfully demonstrate that XAUI devices from multiple vendors across multiple types and lengths of backplanes/connectors can achieve the desired bit-error ratio (BER) of 1x10 -12 with greater than 95% confidence.

13. NetScaler Layer 4-7 Testing - Infoworld tested the capabilities of the Request Switch 9000 by supplying wire-speed traffic from a Spirent WebAvalanche on a 100 Mbps Fast Ethernet network.

14. SecureLogix Telewall Testing - Using a Spirent Abacus, Network Computing tested the SecureLogix Enterprise Telephony Management (ETM) suite by hammering the ETM with hundreds of thousands of simulated calls over the course of a month.

15. Marconi Testing - Marconi, plc. commissioned The Tolly Group to evaluate its BXR-48000 Multiservice Switch Router. Testing was performed a 240 Gbit/s configuration. They used an AX/4000 with OC-12c and OC-48c modules measuring connection capacity, throughput and failover capabilities.

16. Blue Coat Systems (Cache Flow) layer 4 - 7 testing - The Spirent WebAvalanche and WebReflector were used on a test with the Blue Coat Systems (formerly CacheFlow) 800 series security appliance, showing the results against the Cisco Content Engine 560, Inktomi Traffic Server Engine, Microsoft ISA Server and the Network Appliance NetCache C1105.

17. Public Comparative Switch Test - CCID in China conducted a ten vendor bakeoff using the WebAvalanche. The participants included Acer, Founder, Greatwall, Hewlett-Packard, Langchao Co., Legend Group, Power Leader, Start, Tsinghua Tongfang and Wangxin.

18. First ever ETSI xDSL Plugfest - Telecommunications companies are meeting demands for high-speed remote access to the Internet and corporate networks with the deployment of DSL technology, which operates on telephone wires intended originally for voice-band communication. DSL technologies u the so-called xDSL family u include HDSL (High bit-rate DSL), ADSL, VDSL (Very high-speed DSL) and SDSL/SHDSL. The benefits of DSL technology include speed, connectivity, ease of use, reliability and security. Applications include ainformation on demandA, improved on-line shopping, video-conferencing, video-on-demand and web hosting, as well as entertainment opportunities such as video gaming and telecommuting.

19. Tolly's Fourth Annual Interoperability Switch Test Event - Players in the fouth annual Network World/Tolly group Switch Interoperability test successfully demonstrated fundamental levels of switch interoperability. Areas of interop testing included jumbo frames, 10 Gigabit Ethernet, Auto Negotiation, 802.1 p/Q, Link Aggregation, Spanning tree, and Gigabit Trunking. Routing protocols included: RIP v1/v2, OSPF, BGP-4 and IPX. For IP multicast, DVMRP, PIM SM, PIM DM, and VRRP were tested. Tolly used the Spirent SMB 2000 and 6000 systems along with SmartFlow, SmartMulticast, and SmartWindows applications in order to generate necessary traffic types.

20. IPv6 Capabilities of the Adtech AX/4000 - Since Network Equipment Manufacturers (NEMs) are at various points in their IPv6 development, network engineers find a wide variety of performance variations and capabilities. The information gained from testing with the Adtech AX/4000 can help these engineers make better-informed decisions during their equipment purchases.

21.ADSL CPE 與 DSLAM 的測試方針和基準--隨著寬頻網路的日漸普及，網路製造商對 ADSL 產品的技術開發已經由早期的 ANSI T1.413 以及 ITU G.992.1 規範上，逐漸被推廣到 DSL Forum 中討論，且從 WT-062 多項的討論報告之中，整理出比 較具體的項目來 協助相關 ADSL CPE 與 DSLAM 的 網路製造商，這些具體的測試項目便被統稱為 TR-048 規範，在規範的演進過程後， ADSL Interoperability Testing 有了明確的依據，網路製造商 可依遵循此規範來有效開 發產品，目前，ITU 也採納了 TR-048 的項次來闡述說明下一 代 ADSL 和 ADSL2 的規 範。如何去履行 TR-048 的要求來完成 ADSL Interoperability 的測試分析呢? 請您參考由 廣聯科技和彥成通信協力代理 Spirent Communication 公司的解決方案，我們提供了 測試上所需的 Wireline Simulation、Noise Generator、Traffic Generator & Analysis 以及 Automation Tested Software 等利器，可以有效地協助您完成 TR-048 的要求。

AsCom 之熱門產品 QVoice 日前, 提出針對 UMTS / WCDMA 的測試分析報告
June 2002