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1、Analyze Assure Accelerate思博伦MSTP测试仪表技术培训M13916210543Analyze Assure Accelerate议程MSTP回顾 MSTP测试内容 MSTP测试原理及方法 思博伦通信概况 SmartBits基础知识Analyze Assure AccelerateMSTP回顾多业务传输平台 核心是SDH之上的包交换 或信元交换 特征是能提供以太网、 ATM或POS支路板 工作在一到三层,或者四 层Analyze Assure AccelerateMSTP测试内容SDH传统测试项目 光功率、眼图、频偏 误码、抖动、抖动容限 开销、告警 保护倒换时间 Et
2、hernet接口测试 帧格式 自协商 异常包处理 流控Analyze Assure AccelerateMSTP测试内容Ethernet交换测试 RFC2544基准测试 吞吐量、丢包、时延、背靠背 RFC2889测试 地址学习能力 头端阻塞 转发能力 广播复制能力 超线速转发 VLAN隔离测试 STP协议测试 IGMP组播测试Analyze Assure AccelerateMSTP测试内容ATM测试 CBR、VBR、UBR业务类型测试 吞吐量、信元传输时延、信元抖动容限、信元纠错 流控、信元丢弃优先级 OAM信元测试Analyze Assure AccelerateMSTP测试内容MSTP系
3、统测试 业务层保护倒换时间 带宽共享 优先级测试Analyze Assure AccelerateMSTP测试原理及方法Ethernet接口测试 帧格式 802.3Ethernet IIAnalyze Assure AccelerateMSTP测试原理及方法Ethernet接口测试 异常包处理 OverSized(1518bytes) UnderSized( Test ConfigurationAnalyze Assure AccelerateSetup PreferenceAnalyze Assure AccelerateLayer 2 Learning - “Router Test” Un
4、checkedThe MAC Address table update shown below occurs at the beginning of a test (i.e., during the Learning Phase). Traffic is shown in only one direction (i.e., uni-directional). When you send Bi-directional traffic the table update will occur in both directions.1. Card # 2 Sends a Learning Packet
5、 to Bridge 3. Card # 1 Sends Traffic to Card # 22. Bridges MAC Address Table is UpdatedCard #1(DA) MAC=000000000002 (SA) MAC=000000000001Card #2(SA) MAC=000000000002DUT= Layer 2 BridgeBridge MAC Address Table Port 2=MAC 000000000002Port 1Port 2Analyze Assure AccelerateLayer 3 Learning - “Router Test
6、” CheckedThe ARP exchange below occurs at the beginning of a test (i.e., during the Learning Phase). This exchange describes traffic in only one direction (i.e., uni-directional). When you send Bi-directional traffic the exchange will occur in both directions.1. Card #1 Sends a Packet to Card #22. C
7、auses Router to ARP Card #23. Card #2 sends an ARP Reply5. Card #1 Sends test Packets to Card #24. Routers ARP Cache is UpdatedCard #1 Protocol=IP MAC Dest=080002068922 MAC=000000000001 Card IP=192.168.99.2 Routers IP=192.168.99.1Card #2 Protocol=IP MAC Dest=080002898856 MAC=000000000002 Card IP=192
8、.168.88.2 Routers IP=192.168.88.1DUT=Layer 3 Router Protocol=IP MAC Port1=080002068922 IP Port1=192.168.99.1 MAC Port2=080002898856 IP Port2=192.168.88.1Port 1Port 2Analyze Assure AccelerateViewing Test Progress/ResultsAll information, in detail, is written in the Log File for each test Concise info
9、rmation is written into a text Report File which is time stamped Each test is written into an “Excel Spreadsheet like” table Files can be save as an Excel spreadsheet, delimited, text, etc.Analyze Assure AccelerateViewing the Test LogThis is the most important section! You MUST check the Log File to
10、 be sure that the test ran correctly!Analyze Assure AccelerateWhat is SmartWindow?Front Panel GUI of the SmartBits Chassis.Analyze Assure AccelerateLAN-3201B 1000Base-X GBIC SmartMetrics Module TX/INITOff - Not TransmittingRed - Card not InitializedGreen - Transmitting RX/ERROff - Not ReceivingGreen
11、 - ReceivingRed - RX Error Event MGMT/PAUSEOff - No Trigger or PauseGreen - RX Trigger EventAmberAmber - RX Pause Frames LINKAmberAmber - No Link DetectedGreen - Full DuplexAnalyze Assure AccelerateTraditional Transmit Setup windowAnalyze Assure Accelerate10/100 Traditional Card CapabilitiesPreamble
12、FCSBackground Pattern (Increment, Decrement, Toggle, Random, Constant, Custom)VFD1 1-6VFD2 1-6VFD1&2 1-6 Bytes-Variable Field increment, decrement toggle, random, constantGenerate/Detect Dribble Bit ErrorsIPG100Mbps Gap 880ns - 1.6S in 40 ns incrementsGenerate/Detect Alignment Errors 10Mbps Gap 8800
13、 ns - 1.6S 400 ns incrementsGenerate/Detect CRC ErrorsBackground: Could Cover Entire Frame, or be Overwritten By VFDsVFD3: Generate Streams of Traffic with Changing Content (Cyclical), custom MAC addressing, and/or Any Type of Protocol at full wire-rate speed!Check incoming packets for undersize, ov
14、ersizeData Length 0-8Kbytes Long (depending on the card) Generates Runts and Jabbers2 Triggers 1-6 Bytes anywhere in framePreambleDestinationSourceTypeDataFCSSmartBits Generated FrameEthernet Version 2 FrameUpper Layer ProtocolVFD3 1-2048 BytesBackground FillVFD3 CyclicalAnalyze Assure AccelerateMax
15、imum Frame Rates ReferenceSize Ethernet (pps) Fast Ethernet (pps)Gigabit Ethernet (pps)6414,880 148,809 1,488,095128 8,445 84,459 844,594256 4,528 45,289 452,898512 2,349 23,496 234,9621024 1,197 11,973 119,7311280 961 9,615 96,1531518 8128,127 81,274How to calculate the maximum frame rate: Constants:Constants: Gap = 96 bits Preamble = 64 bits Frame Size = 8 N bits (N = n