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WaveDynamix™

WaveDynamix™ is an application that works with the WaveTest system to help development and test engineers at network equipment manufacturers and service providers to quickly create a broad range of functional and scalability tests for 802.11 and Ethernet devices. The base 802.11 and 802.11n standards, at over 1500 pages in combined length, encompass a great deal of complexity, demanding that any quality product must be thoroughly tested to verify performance and stability. WaveDynamix™ greatly simplifies this process by allowing functional components to be easily tested in isolation and then integrated and tested as part of the complete system.

Benefits

  • Exploratory Testing: It is often clear that a device under test is not producing the expected results, but the cause of the unexpected behavior can be difficult to isolate. Some experimentation is necessary to identify the source of the problem before a fix can be created or a more formal regression suite can be introduced. WaveDynamix provides customers with a flexible and efficient tool to trial different test conditions and examine responses both in the test equipment and in their device.
  • Over-time Results: Many problems in today’s wireless network behaviors are dependent upon the interaction between different components of the system, including the system’s response to the wireless environment, and show up as system instabilities. WaveDynamix provides the user the ability to create these dynamic interactions and to view the device’s response over time. The network’s ability to gracefully handle these various conditions is critical to delivering a high quality system.
  • Functional Testing: The granular control of WaveDynamix makes it very easy to support a variety of functional and negative testing. The interactive control of WaveDynamix allows the user to halt the state changes in the test bed and to verify that the DUT is in the proper state during each step of the test. In addition to identifying functional failures, this capability of WaveDynamix also facilitates rapid identification of the cause of any functional failures.
  • 802.11n Testing: For 802.11n networks to approach the advertised rates of the technology, it is necessary to understand how well each acceleration mechanism works independently and as part of a standard configuration. WaveDynamix enables users to quickly assess the static and dynamic performance of 802.11n networks with a variety of client types, traffic flows, QoS configurations, and physical layer conditions in all stages of product development.

Key Features

  • Decoupled Management and Data Planes: WaveDynamix is the first 802.11 test tool that allows the tester to control the management plane and the data plane independently to provide unprecedented control to the user. This capability can be particularly useful for hardware engineers who can send and receive frames without first having to form an association between a client and an access point.
  • Highly Interactive Interface: Networks are highly dynamic and intelligently respond to changes in the network conditions. Testers can easily change network conditions on the fly, for instance by adding new clients or changing flow rates, and immediately view the results in real-time charts and graphs.
  • Generate Normal and Custom Traffic: Users can generate either fully compliant UDP or stateful TCP traffic, or create fully customized packets independently or concurrently. For developers, the custom frame capability can be very useful to test content-specific features such as filters and rogue AP detection. Custom frames can also be used to generate DoS attacks on a network infrastructure while simultaneously viewing the forwarding behavior of compliant traffic.
  • Integrated Troubleshooting: A wealth of diagnostic information and troubleshooting tools are available to facilitate rapid problem identification and isolation. An integrated capture/decode capability runs on every port during the test session and allows users to view physical and logical layer information in the protocol decodes using the VeriWave radio tap header whenever there is an unexpected event.

Port Specifications

Port Type 802.11 or Ethernet
    Ethernet Autonegotiation On, forced, or manual
    Ethernet Speed 10, 100, or 1000 Mbps
    Ethernet Duplex Half or full
    802.11 Channel 1-14, 36, 40, 44, 48, 52, 56, 60, 149, 153, 157, 161, or deferred to client configuration
    802.11 Contention On or off
Event and Event Rate Counters All counters maintain an event count and one second rate per port unless otherwise noted
    Addressing Tx/Rx unicast, tx/rx multicast, and tx/rx broadcast frames
    Basic
  • Tx/Rx total, tx/rx signature, tx/rx FCS errored, tx failed, tx failed ACKs, rx beacon and rx PAUSE
  • bullet point 1>Tx / Rx total rate in Mbps
  • Min, max, 1 second average, and total test average latency in mS
Statistical Chart All charts display per port results once per second
    Available Charts Tx/Rx all frames rate (fps), tx/rx all frames rate (Mbps), tx/rx signature frame (fps), tx/rx average signature frame latency over the last 1 second

Client Specifications

Client Type 802.11 or Ethernet
    802.11 Client PHY 802.11ag, 802.11b, or 802.11n
    802.11ag or 802.11b Settings Tx Flow Bit Rate, Tx Management Bit Rate, Tx Power, Frame Error Rate
    802.11n MCS Index 0-23
    802.11n Bandwidth 20 or 40 MHz
    802.11n Guard Interval Short or Standard Guard Interval
    802.11n A-MPDU Aggregation Enabled or disabled
    802.11n Channel Model Bypass or IEEE models A-F
802.11 MAC
    CTS-to-Self Enabled or disabled
    Management Retries 0 – 10
    Data Retries 0 – 10
802.11 Performance
    Probe Before Association Unicast, broadcast, or disabled
    Reauthenticate if deauthenticated Enabled or disabled
    Advertise WMM Support Enabled or disabled
    Power Save Enabled or disabled
    Power Save Listen Interval 1 – 65535 beacon intervals
    WMM uAPSD Enabled or disabled
    WMM uAPSD Service Period Length Request delivery 2, 4, 6, or all buffered frames per service period
Layer 2 General
    MAC Address Fully configurable
Layer 2 802.11
    SSID Fully configurable
    Channel 1-14, 36, 40, 44, 48, 52, 56, 60, 149, 153, 157, or 161
    Authentication Open, Shared, WPA, WPA2, DWEP, or LEAP
    Encryption None, WEP40, WEP104, TKIP, AES-CCMP
    Type PSK, EAP-TLS, EAP-TTLS, PEAP-MSCHAPv2, LEAP, EAP-FAST
    Credentials Credentials Fully configurable by client, configurable parameter determined by Encryption and Type
Layer 2 Ethernet
    VLAN tag Enabled or disabled
    VLAN ID 0-4094
    VLAN CFI Enabled (1) or disabled (0)
Layer 3
    Address Acquisition DHCP or Static
    ARP timeout 1-20,000 mS, configurable to 1 mS resolution
    DHCP timeout 1-180,000 mS, configurable to 1 mS resolution
Static IP Addressing
    IP Address Fully configurable
    Subnet Mask 0 to 32 bit netmask
    Default Gateway Fully Configurable
    Authentication Open, Shared, WPA, WPA2, DWEP, or LEAP
Event Counters All counters maintain an event count per client since the start of the test session
    Client Statistics
  • ARP handshakes: successful, failed and retries
  • DHCP handshakes: successful, failed and retries
  • Authentication handshakes: successful, failed and retries
  • Association handshakes: successful, failed and retries
  • Probe handshakes: performed and retried
  • Tx Pings, Rx Pings, Rx Deauthentication frames, and Rx Disassociation frames

Traffic Specifications

Traffic General
    Traffic Type IP or Custom
    Intended Frame Rate 1 – 1,488,095 frames per second
Custom Traffic
    Custom Frame Contents Fully specifiable except IEEE 802.11 sequence number and frame control fields and FCS fields on Ethernet and 802.11 interfaces
    Custom Traffic Source Any port in the test configuration
IP Traffic
    Frame Size 64 – 1518 bytes
    IP Traffic Source Client or client group
    IP Traffic Destination Client, client group, or user-specified IP address
    L4 Protocol ICMP, UDP, or stateful TCP
    TCP Source Port 1 - 65535
    TCP Destination Port 1 - 65535
    TCP Window Size 2 - 65535 bytes
    UDP Source Port 1 - 65535
    UDP Destination Port 1 - 65535
    ICMP Type Echo request, echo reply, destination unreachable, source quench, redirect
    ICMP Code 0 – 255
L4 Payload Fill
    Mode Fixed or repeating
    Contents Custom, all zeroes, all ones, F0:F0:F0:F0, A0:A0:A0:A0, 70:70:70:70, or 50:50:50:50
QoS Configurable per flow
    State Enabled or disabled
    WMM or VLAN User Priority 0 - 7
    WMM EDCA Parameters Adopt from BSS advertisements, or manually specify AIFSN, ECWmin, ECWmax, and retry limit
    WMM ADDTS Handshake Enabled or Disabled
    TSPEC Configurable Parameters TID / TSID, nominal MSDU size, minimum PHY rate, mean data rate, surplus bandwidth allowance, and flow direction
    IP Diffserv Enabled or disabled
    IP DSCP 0 - 63
Event Counters Counters maintained per flow since the start of the test session unless otherwise noted
    Flow Statistics
  • Tx/Rx counters: frames, frame rate, frame bytes, IP packets, IP bytes
  • Offered load (Mbps), forwarding rate (Mbps)
  • Instantaneous packet loss and instantaneous packet loss rate
  • Packet loss, lost n sequential frames (n=2, 3, 4, and 5)
  • Max Latency, total latency, average latency over last 1 second , latency of last rx frame (mS)
  • Rx out of sequence frames, sequence number of last rx frame
  • Rx frames with bad payload
  • Rx smoothed inter-arrival jitter (mS)
    Statistical Tables Multiple flow statistics are updated once per second in a tabular view
    Number of flows in table 1-16
    Data displayed per flow Any of the flow statistics
    Statistical Charts All charts display per flow results once per second
    Number of flows in table 1-16
    Flow Statistics Tx frame rate, rx frame rate, Rx smoothed inter-arrival jitter (mS), packet loss, packet loss rate, lost n sequential frames (n=2, 3, 4, and 5), offered load (Mbps), forwarding rate (Mbps)

 

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WaveDynamix™ Usage Videos

Traffic Capture
Connecting a Client
Maximum Concurrent Clients


WaveDynamix™ datasheet

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Asking the Right Questions When Considering an 802.11n Test Solution

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