Benchmarking

The Latency Benchmarking test
The Latency Benchmarking test allows you to present the system under test (SUT) with an intended load (ILOAD) and measure the time that it takes for frames to be forwarded through the SUT (latency). If you have multiple clients, the ILOAD is divided evenly between the clients sourcing traffic into the SUT. For accurate latency measurement, the ILOAD must be at a level that produces no frame loss. Use the throughput test to determine the maximum ILOAD that can be achieved without frame loss.

Latency is measured by taking the difference between the arrival time of a packet at the destination port and the time the packet was sent at the source port. WaveTest allocates each arriving packet into one of sixteen different "latency buckets". Each latency bucket has a maximum latency time boundary, which are setup in ascending order. The arriving packets are placed in the last latency bucket for which their latency value does not exceed the latency bucket boundary. In this way a distribution of latency times can be measured.

基准测试的延迟

延迟基准测试允许您用一个预期的负载(ILOAD)在测试(SUT)下显示系统，并测量通过SUT(延迟)转发框架所需的时间。如果您有多个客户端，那么ILOAD就会在客户端将流量分配到SUT中进行平均分配。为了准确的延迟测量，ILOAD必须处于一个不会产生帧丢失的水平。使用吞吐量测试来确定在没有帧丢失的情况下可以达到的最大ILOAD。

延迟是通过在目标端口的到达时间和数据包在源端口发送的时间之间的差异来度量的。波将每个到达的数据包都分配到16个不同的“延迟桶”中。每个延迟bucket都有一个最大的延迟时间边界，这是按照升序设置的。到达的包被放在最后一个延迟存储桶中，它们的延迟值不会超过延迟的bucket边界。通过这种方式，可以测量延迟时间的分布。

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maximum client capacity Benchmarking
This test allows the user to calculate the maximum number of clients that can be associated on the SUT at a given time under a given intended load and frame size within an acceptable frame loss tolerance.

最大客户能力基准测试
该测试允许用户在给定的时间内，在给定的负载和框架大小下，在给定的框架损失容许范围内，计算出在给定时间内与SUT相关的最大客户数量。

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The Max Forwarding Rate (MFR) Benchmarking
The Max Forwarding Rate (MFR) Benchmarking test identifies the maximum rate at which the system under test (SUT) can forward packets, regardless of loss. The test determines the MFR by using a modified binary Search algorithm.

最大转发速率(MFR)基准测试
最大转发速率(MFR)基准测试确定了测试系统(SUT)可以转发数据包的最大速率，而不管损失是什么。这个测试通过使用一个修改后的二进制搜索算法来确定MFR。
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The Packet Loss Benchmarking
The Packet Loss Benchmarking test allows you to present the system under test (SUT) with an intended load (ILOAD) and measure the response in terms of forwarding rate and loss packets. If you have multiple clients, the ILOAD is divided evenly between the clients sourcing traffic into the SUT. You can specify a variety of ILOAD conditions and the test will produce the measured results for each ILOAD.

Forwarding rate is measured by counting the number of packets that have been successfully received at the destination port(s) over the course of the test. Packet loss is calculated by taking the difference between the offered packets and the received packets.

包丢失基准测试允许您在测试(SUT)下以预期的负载(ILOAD)来呈现系统，并以转发速率和丢失包的方式来度量响应。如果您有多个客户端，那么ILOAD就会在客户端将流量分配到SUT中进行平均分配。您可以指定各种ILOAD条件，测试将为每个ILOAD生成测量结果
转发率是通过在测试过程中通过在目标端口(s)中成功接收到的数据包的数量来度量的。包丢失是通过接受所提供的包和收到的数据包之间的差异来计算的。
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The Throughput Benchmarking
The Throughput Benchmarking test identifies the maximum rate at which the system under test (SUT) can forward packets without loss.

This test determines the throughput rate by using a binary search algorithm. The test starts by offering a predetermined starting load to the SUT. Packet loss is then measured. If packet loss is detected the offered load (OLOAD) is cut in half. If there is no packet loss the OLOAD is doubled. This process continues until the difference between OLOAD values is less than the search resolution setting. The process is repeated for each frame size specified in the test.

吞吐量基准测试
吞吐量基准测试确定了测试系统(SUT)能够在不丢失的情况下转发数据包的最大速率。
这个测试通过使用二分查找算法来确定吞吐量。测试的开始是向SUT提供预先确定的开始负载。然后测量包丢失。如果检测到包丢失，则提供的负载(OLOAD)会减半。如果没有包丢失，则是加倍的。这个过程会一直持续下去，直到两个o的值之间的差异小于搜索的分辨率设置。对于测试中指定的每个帧大小，这个过程都是重复的。
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legacy rate vs. range
This test allows the user to present the system under test (SUT) with a specific intended load (ILOAD in frames/sec) at a given frame size and fixed external attenuation conditions, and measure the forwarded traffic rate as a function of path loss (equivalent to range). The user should input the value of the external attenuation, the desired initial and final transmit power level values for the path loss sweep, and the step size by which the path loss is changed.

The external attenuation (dB) should include the attenuation due to fixed external attenuators, cable losses, splitter losses etc. It should be set such that the AP power level at the WBW-1000 antenna port is between -55 and -45 dBm. For example, with an AP output power of +20 dBm, a 70 dB external attenuation should be used. The external attenuation may have to be modified experimentally in order to center the rate rolloff curve within the path loss sweep

遗留率与范围
这个测试允许用户在给定的框架大小和固定的外部衰减条件下，在测试(SUT)下给出一个特定的预期负载(在帧/秒内)，并测量被转发的流量作为路径损失的函数(等效于范围)。用户应该输入外部衰减的值、路径损失清除所需的初始和最终传输功率级值，以及路径损失更改的步骤大小。
外部衰减(dB)应该包括由于固定的外部衰减器、电缆损耗、分割器损耗等引起的衰减，应该设置在ww-1000天线端口的AP功率级在-55-45 dBm之间。例如，在AP输出功率为+20 dBm时，应该使用70分贝的外部衰减。外部衰减可能需要在实验中进行修改以使路径损失范围内的速率下降曲线为中心

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a/b/g/n rate vs. range
This test allows the user to present the system under test (SUT) with a specific intended load (ILOAD in frames/sec) at a given frame size and fixed external attenuation conditions, and measure the forwarded traffic rate as a function of path loss (equivalent to range). The user should input the value of the external attenuation, the desired initial and final transmit power level values for the path loss sweep, and the step size by which the path loss is changed.

The external attenuation (dB) should include the attenuation due to fixed external attenuators, cable losses, splitter losses etc. It should be set such that the AP power level at the WBW-1000 antenna port is between -55 and -45 dBm. For example, with an AP output power of +20 dBm, a 70 dB external attenuation should be used. The external attenuation may have to be modified experimentally in order to center the rate rolloff curve within the path loss sweep

a / b / g / n比率与范围
这个测试允许用户在给定的框架大小和固定的外部衰减条件下，在测试(SUT)下给出一个特定的预期负载(在帧/秒内)，并测量被转发的流量作为路径损失的函数(等效于范围)。用户应该输入外部衰减的值、路径损失清除所需的初始和最终传输功率级值，以及路径损失更改的步骤大小。

外部衰减(dB)应该包括由于固定的外部衰减器、电缆损耗、分割器损耗等引起的衰减，应该设置在ww-1000天线端口的AP功率级在-55-45 dBm之间。例如，在AP输出功率为+20 dBm时，应该使用70分贝的外部衰减。外部衰减可能需要在实验中进行修改以使路径损失范围内的速率下降曲线为中心

The TCP Goodput
The TCP Goodput test measures the number of TCP payload bytes per second that the system under test (SUT) can transfer between its ports and the maximum segment size (MSS).

TCP Goodput
TCP Goodput测试度量在测试的系统(SUT)可以在其端口和最大段大小(MSS)之间传输的每秒TCP有效负载字节数。

WLAN漫游
WLAN roaming

roaming delays
The test measures the roaming delays and packet loss of the clients roaming when the SUT is stressed with a specified roam pattern and each client configured with certian dwell time(s). Client roam pattern can be tuned with the option of clients' starting points distributed among the AP's.

The test works by creating the configured number of wireless clients on the Wireless test ports and one Ethernet client on the Ethernet port of the VeriWave system. Once these clients are created and assigned the necessary attributes (security, data flows, etc.), the Wireless clients are bound to their initial target test ports, and associated with the SUT (i.e., the APs). The test then begins to move (roam) the Wireless clients between the APs at the desired interval and in user specified pattern which is defined in the roam profile. When each roam operation is performed,the test measures the time taken to roam and the number of data packets (from Ethernet to Wireless) lost during the roam. At the end of the test duration, the script reports the minimum, maximum and average roam delays for each test client, the number of roams performed, and the average number of packets lost per roam for each client.

漫游的延迟
测试测量当SUT被指定的漫游模式和每一个带有认证的停顿时间(s)的客户端漫游时，漫游延迟和包丢失的情况。客户机漫游模式可以通过在AP中分布的客户机的起始点进行调整。
测试的工作是在无线测试端口上创建配置的无线客户端和在VeriWave系统的以太网端口上的一个以太网客户端。一旦这些客户机被创建并分配了必要的属性(安全、数据流等)，无线客户机就被绑定到它们的初始目标测试端口，并与SUT(即:APs)。然后测试开始移动(漫游)无线客户端，在期望的时间间隔和用户指定的模式中，在漫游配置文件中定义。当执行每个漫游操作时，测试将测量漫游期间所花费的时间，以及在漫游期间丢失的数据包的数量(从以太网到无线)。在测试持续时间结束时，该脚本报告每个测试客户机的最小、最大和平均漫游延迟，执行的roams的数量，以及每个客户机漫游的平均包数。

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The Roaming Benchmark
The Roaming Benchmark test determines the number of roams per unit of time that the WLAN controller can support. The test reports the roam delay, failed roams and packet loss for a particular roam rate for the specified configuration. Unique roaming patterns can be specified for each network (SSID). Within the network, the client groups follow a predefined roaming pattern.

漫游基准

漫游基准测试确定了WLAN控制器可以支持的每单位时间的roams的数量。该测试报告了漫游延迟、失败的roams和数据包丢失，以指定特定的配置为特定的漫游速率。可以为每个网络(SSID)指定独特的漫游模式。在网络中，客户机组遵循一个预定义的漫游模式。

VoIP QoS

service capacity
The VoIP QoS Service Capacity test determines the maximum number of VoIP calls the System Under Test (SUT) can maintain at a specified Service Level Agreement (SLA) in the presence of best effort traffic load. The SLA can be specified as an R-value or as a combination of maximum latency, packet loss and jitter.

服务能力
VoIP的QoS服务能力测试决定了网络电话的最大数量(SUT)可以在一个指定的服务水平协议(SLA)中维护，在最好的工作负载的情况下。SLA可以指定为r值，也可以作为最大延迟、包丢失和抖动的组合。

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service assurance
The test determines the maximum amount of low priority traffic that the System Under Test (SUT) can sustain without breaking the Service Level Agreement (SLA) for a specified number of VoIP calls. The Service Level Agreement can be specified as a minimum R-value or a combination of maximum Packet Loss, Latency and Jitter of the VoIP calls.

服务保证
这个测试决定了测试系统(SUT)在没有中断服务水平协议(SLA)的情况下能够维持的低优先级流量的最大数量，这是一个特定数量的VoIP电话。服务水平协议可以被指定为最小的r值或最大的包丢失、延迟和网络电话的抖动。

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The Roaming Service Quality
The Roaming Service Quality test determines the effect of roaming on call quality as measured by the R-value and dropped calls. The test measures the anticipated drop in call quality when wireless clients begin to roam from one AP to another.
漫游服务质量
漫游服务质量测试决定了漫游在呼叫质量上的影响，这是由r值和掉线所测量的。当无线客户端开始从一个AP移动到另一个时，测试测量了呼叫质量的预期下降。

wireless mesh

Latency Per Hop
The Latency Per Hop test determines the latency of each hop through the mesh network for the system under test (SUT). The test allows you to present the SUT with an intended load (ILOAD) and measures the time that it takes for frames to be forwarded through each node in the SUT (latency).

延迟每跳

每跳测试的延迟决定了在测试系统(SUT)中，通过网状网络的每一跳的延迟。测试允许您用一个预期的负载(ILOAD)来呈现SUT，并度量在SUT(延迟)中通过每个节点转发帧的时间。

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The Aggregate Latency
The Aggregate Latency test determines the overall latency of the mesh network for the system under test (SUT). The test presents the SUT with an intended load (ILOAD) and measures the time that it takes for frames to be forwarded through the SUT (latency) across all the nodes in the mesh network.

总延迟
总延迟测试决定了测试系统(SUT)的网状网络的总体延迟。测试用一个预期的负载(ILOAD)来表示SUT，并测量通过在网状网络中的所有节点通过SUT(延迟)来转发帧的时间。

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The Throughput Per Hop
The Throughput Per Hop test identifies the maximum rate at which the system under test (SUT) can forward packets without loss through each node. The throughput is measured on a per hop-basis, starting from the nearest node to the gateway and ending with the node furthest away from the gateway.

每跳吞吐量
每跳测试的吞吐量确定了测试系统(SUT)的最大速率，它可以通过每个节点对包进行转发。吞吐量以每一个希望为基础，从最近的节点开始到网关，最后以离网关最远的节点结束。

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The Aggregate Throughput mesh
The Aggregate Throughput mesh test identifies the maximum rate at which the system under test (SUT) can forward packets without loss across all the nodes in the mesh network.

总吞吐量网

总吞吐量网格测试确定了测试系统(SUT)可以在网格网络中的所有节点上转发数据包的最大速率。

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The Maximum Forwarding Rate
The Maximum Forwarding Rate Per Hop test determines the maximum rate at which a single mesh hop can transfer frames between its ports, regardless of frame loss. The test measures the ultimate traffic handling capacity of the system under test (SUT). Significant differences between the results of this test and the Throughput Per Hop test may indicate potential SUT data path problems.

最大的转发率
每跳测试的最大转发速率决定了一个网跳可以在其端口之间传输帧的最大速率，而不考虑帧丢失的情况。该测试测量了测试系统(SUT)的最终流量处理能力。这个测试的结果与每跳测试的吞吐量之间的显著差异可能表明潜在的SUT数据路径问题。