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Endace DAG 3.7GF User Manual

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  • Page 2 EDM01-07: DAG 3.7G Card User Guide Published by: ® Endace Measurement Systems Building 7 17 Lambie Drive PO Box 76802 Manukau City 1702 New Zealand Phone: +64 9 262 7260 Fax: +64 9 262 7261 support@endace.com www.endace.com International Locations New Zealand Americas Europe, Middle East &...
  • Page 3 Disclaimer Whilst every effort has been made to ensure accuracy, neither Endace Measurement Systems Limited nor any employee of the company, shall be liable on any ground whatsoever to any party in respect of decisions or actions they may make as a result of using this information.
  • Page 4 EDM01-07: DAG 3.7G Card User Guide Version 7: May 2006 ©2005...

  • Page 5: Table Of Contents

    EDM01-07: DAG 3.7G Card User Guide Table of Contents Chapter 1: Introduction Overview Purpose of this User Guide System Requirements Card Description Card Architecture Overview NIC Functionality Memory Holes Failsafe Relays Chapter 2: Installation Introduction DAG Device Driver Inserting the DAG Card Connecting the Interfaces Card Sensitivity Chapter 3: Configuring the Card...
  • Page 6 EDM01-07: DAG 3.7G Card User Guide Table of Contents (cont. Chapter 6: Data Formats Overview Generic Header Type 2 Record Chapter 7: Troubleshooting Reporting Problems Version 7: May 2006 ©2005...

  • Page 7: Chapter 1: Introduction

    Chapter 1: Introduction Overview The Endace DAG 3.7G series consist of two PCI-bus card types, DAG 3.7GF and the DAG 3.7GP. The installation of an Endace DAG 3.7G series card on a PC begins with installing the operating system and the Endace software. This is followed by fitting the card and connecting the ports.

  • Page 8: Card Description

    Endace Customer Support at support@endace.com Card The DAG 3.7GF has failsafe relays to connect the two ports on the card in event of a power failure. This failsafe feature is intended for use in inline Description forwarding applications.

  • Page 9: Card Architecture

    EDM01-07: DAG 3.7G Card User Guide The DAG 3.7GF card is shown below: Card Overview Architecture The DAG 3.7G series card is designed for packet capture and generation on Ethernet networks. Ethernet data is received by a DAG 3.7G series card interfaces, and fed through framers into the Xilinx FPGA.

  • Page 10: Nic Functionality

    MDI/MDI-X switching, so can be connected to a NIC using either an Ethernet straight-through or cross-over cable. When using the failsafe feature of the DAG 3.7GF, there are some advantages to using a straight through cable rather than a cross-over one. The DAG card captures all packets received on each port, similar to a NIC in promiscuous mode.

  • Page 11: Chapter 2: Installation

    Installation Introduction Note: Throughout this document the “DAG 3.7G” refers to both the DAG 3.7GF card and the DAG 3.7GP card. The DAG 3.7G card can be installed in any free 32-bit or 64-bit Bus Mastering PCI slot. Although the driver supports up to four DAG cards by default in one system, due to bandwidth limitations there should not be more than one card on a single PCI-bus.

  • Page 12: Card Sensitivity

    EDM01-07: DAG 3.7G Card User Guide Card The DAG 3.7G card monitoring ports conform to the IEEE 802.3 standard for Ethernet. Sensitivity The standard specifies a maximum cable length of 100 metres for 10Base-T, 100-BaseTX, and 1000Base-T operation over unshielded twisted pair CAT5E or better cable.

  • Page 13: Chapter 3: Configuring The Card

    EDM01-07: DAG 3.7G Card User Guide Chapter 3: Configuring the Card Introduction Configuring the DAG card for data capture involves: • Engaging failsafe relays, • Interpreting card LED status, • Starting a capture session, • Inspecting statistics. Engaging The 3.7GF has relays for inline forwarding applications to reconnect the two ports in case of power failure.

  • Page 14: Configuration Utility

    ) as well as via the manual dagthree –h page. Default Before configuring the card for your specific requirements Endace recommends that you return the card to the default settings using: Configuration dagthree -d1 default An example dagthree output is shown below:...
  • Page 15 EDM01-07: DAG 3.7G Card User Guide Each of the items shown below can be changed reset Reset the ethernet framers, set auto mode default Initialise the card and set the default settings auto Set autonegotiate mode, card will detect rate Force 10BaseT mode, 10Mbps Force 100BaseTX mode, 100Mbp 1000...

  • Page 16: Interface Statistics

    EDM01-07: DAG 3.7G Card User Guide Interface Overview Statistics When you have configured the card according to your specific requirements you can view the interface statistics to check the status of each of the links using: dagthree -d dag0 –si The tool displays a number of status bits that have occurred since last reading.
  • Page 17 EDM01-07: DAG 3.7G Card User Guide Description The following example is for a card locked to a 10base-T stream: dagthree -d dag0 –si Spd Lnk FD Neg JB MA RF Err Spd Lnk FD Neg JB MA RF Err If the RF or JB bits are ' s, this indicates a problem with the network link.
  • Page 18 EDM01-07: DAG 3.7G Card User Guide Version 7: May 2006 ©2005...

  • Page 19: Chapter 4: Capturing Data

    PC buffer fills the “Data Capture” LED on the card will flash or flicker, or may go OFF completely. In Windows no screen message displays to indicate when the buffer is full. Please contact Endace Customer Support at support@endace.com for further information on detecting buffer overflow and packet loss in Windows.

  • Page 20: Detecting Packet Losses

    (lctr of the Extensible Record Format [ERF]. See Chapter 6: Data Formats later in this User Guide for more information on the Endace ERF. Increasing Buffer Size You can increase the size of the host PC buffer to enable it to cope with bursts of high traffic load on the network link.
  • Page 21 EDM01-07: DAG 3.7G Card User Guide Process Description Packet Packet utility can transmit ERF format packet dagflood transmission utility traces. The ERF trace file to be transmitted must Transmission contain only ERF records of the type matching the (cont.) current link configuration. The ERF records to be transmitted must have a length which is a multiple of 64-bits.

  • Page 22: In-Line Forwarding

    EDM01-07: DAG 3.7G Card User Guide In-Line The DAG 3.7G card can be used as an ' inline' device to receive, inspect, filter and forward packets between Port A and Port B. Forwarding The following information describes the DAG 3.7G card inline forwarding process.

  • Page 23: Chapter 5: Synchronising Clock Time

    Common synchronisation sources include GPS or CDMA (cellular telephone) time receivers. Endace also provides the TDS 2 Time Distribution Server modules and the TDS 6 units that enable you to connect multiple DAG cards to a single GPS or CDMA unit.

  • Page 24: Timestamps

    EDM01-07: DAG 3.7G Card User Guide Timestamps ERF files contains a hardware generated timestamp of each packet’s arrival. The arrival time can be either the point at which the start of the packet arrives (head) or the point at which the end of the packet arrives (tail). See Default Configuration in Chapter 3: Configuring the Card earlier in this user guide for more information on configuring the timestamp head/tail option...

  • Page 25: Configuration Tools

    EDM01-07: DAG 3.7G Card User Guide Configuration The DUCK is very flexible, and can be used with or without an external time reference. It can accept synchronisation from several input sources, and also Tools be made to drive its synchronisation output from one of several sources. Synchronisation settings are controlled by the utility.

  • Page 26: Card With Reference

    The DAG time synchronisation connector supports an RS-422 (PPS) signal from an external source. This is derived directly from an external reference source, or distributed through the Endace TDS 2 (Time Distribution Server) module which allows two DAG cards to use a single receiver. It is also possible for more than two cards to use a single receiver by “daisy-chaining”...

  • Page 27: Single Card No Reference

    EDM01-07: DAG 3.7G Card User Guide Single Card No When a single card is used with no external reference, the card can be synchronised to the host PC clock. Most PC clocks are not very accurate by Reference themselves, but the DUCK drifts smoothly at the same rate as the PC clock. If a PC is running NTP to synchronise its own clock, then the DUCK clock is not as smooth because the PC clock is adjusted in small jumps.
  • Page 28 EDM01-07: DAG 3.7G Card User Guide Two Cards No Synchronising with Each Other Reference Although the master card’s clock will drift against UTC, the cards will still be locked together. This is achieved by connecting the time synchronisation (cont.) connectors of both cards using a standard RJ-45 Ethernet cross-over cable. Configure one of the cards as the master so that the other defaults to being a slave as follows: dagclock –d dag0 none overout...

  • Page 29: Connector Pin-Outs

    Connector Overview Pin-outs The DAG 3.7GF card has a 4-pin RJ11 connector with two bi-directional RS422 differential circuits, A and B. The PPS signal is carried on circuit A, and the serial packet is connected to the B circuit. Pin Assignments...
  • Page 30 EDM01-07: DAG 3.7G Card User Guide Version 7: May 2006 ©2005...

  • Page 31: Chapter 6: Data Formats

    EDM01-07: DAG 3.7G Card User Guide Chapter 6: Data Formats Overview DAG Cards produce trace files in their own native format called ERF (Extensible Record Format). The ERF type depends upon the type of connection you are using to capture data. The DAG 3.7T supports the following ERF Types: ERF Type Description...

  • Page 32: Type 2 Record

    EDM01-07: DAG 3.7G Card User Guide flags Generic This byte is divided into several fields as follows: Header (cont.) 1-0: Enumerates capture interface 0-3 Varying record lengths Truncated record (insufficient buffer space) RX error (link layer error) DS error (internal error) Reserved General direction bit.

  • Page 33: Chapter 7: Troubleshooting

    EDM01-07: DAG 3.7G Card User Guide Chapter 7: Troubleshooting Reporting If you have problems with a DAG card or Endace supplied software which you are unable to resolve, please contact Endace Customer Support at Problems support@endace.com. Supplying as much information as possible enables Endace Customer Support to be more effective in their response to you.
  • Page 34 EDM01-07: DAG 3.7G Card User Guide Version 7: May 2006 ©2005...

This manual is also suitable for:

Dag 3.7g seriesDag 3.7gp

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