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Endace DAG 7.1S User Manual

Network monitoring card
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DAG 7.1S Card
User Guide
EDM01-17

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  • Page 1 DAG 7.1S Card User Guide EDM01-17...
  • Page 2 Fax: ++1 703 382 0155 Fax: ++44 1223 370 040 Copyright 2005-2006© Endace Limited. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher.
  • Page 3 Disclaimer Whilst every effort has been made to ensure accuracy, neither Endace 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 5: Table Of Contents

    EDM 01-17 DAG 7.1S Card User Guide Table of Contents Chapter 1: Introduction Overview Purpose of this User Guide System Requirements Card Description Card Architecture Extended Functions Chapter 2: Installation Introduction DAG Driver Device Inserting the DAG Card Port Connectors...
  • Page 6 EDM 01-17 DAG 7.1S Card User Guide Chapter 6: Capturing Data Starting a Session Setting Captured Packet Size Snaplength Variable/Fixed Length Enabling/ Disabling Ports High Load Performance Overview Avoiding Packet Loss Detecting Packet Losses Increasing Buffer Size Transmitting Configuration Explicit Packet Transmission...

  • Page 7: Chapter 1: Introduction

    Introduction Overview The Endace DAG 7.1S card provides the means to transfer data at the full speed of the network into the memory of the host PC, with zero packet loss guaranteed in even worst-case conditions. Further, unlike a NIC, Endace products actively manage the movement of network data into memory without consuming any of the host PC's resources.

  • Page 8: System Requirements

    EDM 01-17 DAG 7.1S Card User Guide System General Requirements The minimum system requirements for the DAG 7.1S card are : • PC, at least Intel Xeon 1.8GHz or faster • Minimum of 256 MB RAM • At least one free PCI-Express slot supporting at least one lane •...

  • Page 9: Card Description

    The DAG 7.1S SDH/SONET Network Monitoring Card provides either four STM-1 (OC3) or two STM-2 (OC12) interfaces supporting concatenated or Description channelised ATM or Packet Over Sonet (POS) networks. The DAG 7.1S has four optical transceivers which can be operated simultaneously. The key features of the card are: •...

  • Page 10: Card Architecture

    EDM 01-17 DAG 7.1S Card User Guide Card Serial SONET/SDH optical data is received by four optical interfaces, and passed through deserializers. Architecture The network data feeds immediately into two physical layer FPGAs. The SONET/SDH payload data is then sent to the main FPGA.

  • Page 11: Extended Functions

    EDM 01-17 DAG 7.1S Card User Guide In addition to standard packet capture the DAG 7.1S card also provides Extended TCP/IP Filtering and Classification and ATM Segmentation and Functions Reassembly TCP/IP Filtering and Classification This feature allows you to classify packets into arbitrary categories which then drop, retransmit or capture a packet to the host based upon the result.
  • Page 12 EDM 01-17 DAG 7.1S Card User Guide Version 3: June 2006 ©2005-2006...

  • Page 13: Chapter 2: Installation

    1.8Gbits/s for both receive and transmit. You can run multiple DAG 7.1S cards on one bus. By default, the DAG driver supports up to four DAG cards in one system. The DAG device driver must be installed before you install the DAG card DAG Driver itself.

  • Page 14: Port Connectors

    EDM 01-17 DAG 7.1S Card User Guide Port The DAG 7.1S has 4 SFP socket connectors. Each connector consists of an optical fibre transmitter and receiver. Connectors The upper connector of each pair is used for the transmit signal. These can be connected to daisy-chain systems if you have facility loopback (fcl) set on the card.
  • Page 15 1 mW. The most sensitive devices can work at power levels down as (cont.) low as –30dBm or 1µW. The DAG 7.1S card optical power module configuration for Multi Mode Fibre (MMF) and Single Mode Fibre (SMF) is shown below: Data...
  • Page 16 EDM 01-17 DAG 7.1S Card User Guide Version 3: June 2006 ©2005-2006...

  • Page 17: Chapter 3: Configuring The Card

    Note: If you are unsure about which of the options listed below apply to your network, please contact your Network Administrator for further information before proceeding with configuring the card. Supported Line Types The line characteristics supported by the DAG 7.1S card are described below. PoS/ATM Packet over SONET/Asynchronous Transfer Mode. OC-3/OC-3c A SONET network line with transmission speeds up to 155.52 Mbit/s using fiber optics.

  • Page 18: Leds And Inputs

    EDM 01-17 DAG 7.1S Card User Guide LEDs and Before you begin to configure the DAG card it is important to understand the function of the various LEDs associated with the card, as well as the sockets Inputs on the PCI bracket.

  • Page 19: Specific Network Configuration

    Specific For detailed information on configuring the DAG 7.1S for data capture on concatenated and channelised networks please refer to Chapter 4: Network Concatenated Configuration Chapter 5: Channelised Configuration.
  • Page 20 EDM 01-17 DAG 7.1S Card User Guide Version 3: June 2006 ©2005-2006...

  • Page 21: Chapter 4: Concatenated Configuration

    EDM 01-17 DAG 7.1S Card User Guide Chapter 4: Concatenated Configuration Load the Note: Before you can configure the card for capture you must first load the card with the appropriate FPGA images for the type of data you FPGA Images want to capture.
  • Page 22 EDM 01-17 DAG 7.1S Card User Guide Display Turns ON (sfppwr) or OFF (nosfppwr) module power for transmit Current Firmware: edag71spci_oc12c_v2_1 2vp30ff1152 2006/02/21 08:53:53 Configuration (user) Serial : 8000073 (cont.) Generate SONET tx clock internally (master) or drive tx SFP A: nolaser detect nosignal nosfppwr clock from rx clock (slave).

  • Page 23: Verify Optical Signal

    EDM 01-17 DAG 7.1S Card User Guide Display If the firmware has not loaded correctly the output will indicate dagconfig “ ” as the component not found SONET/SDH status E1/T1 status Current shown below: Configuration SONET/SDH status (cont.) SONET A: component not found.

  • Page 24: Verify Mapping/Framing Setup

    EDM 01-17 DAG 7.1S Card User Guide Parameters Verify Mapping/ As shown on the previous page, the output displays whether or dagconfig not mapping and framing is setup correctly. Framing Setup For correct setup both ends of the link must match the framing and mapping parameters.

  • Page 25: Atm Mode

    EDM 01-17 DAG 7.1S Card User Guide ATM Mode When configuring the DAG card for ATM mode ensure you configure it to match the characteristics of the network you wish to monitor. Please refer to Display Current Configuration earlier in this chapter for a full explanation of outputs.

  • Page 26: Pos Mode

    EDM 01-17 DAG 7.1S Card User Guide Concatenated Mapper Status: ATM Mode pscramble crc16 atm (cont.) pscramble crc16 atm pscramble crc16 atm pscramble crc16 atm Not applicable to ATM GPP: varlen slen=48 align64 PCI Burst Manager 33Mhz buffer size = 128 rx_streams = 1 tx_streams = 1...

  • Page 27: Interface Statistics

    EDM 01-17 DAG 7.1S Card User Guide PoS Mode E1/T1 status (cont.) E1/T1 A: no_payload notxais Not applicable to E1/T1 B: no_payload notxais concatenated networks E1/T1 C: no_payload notxais E1/T1 D: no_payload notxais Phy status (AMCC1213): noeql nofcl Concatenated Demapper Status:...
  • Page 28 EDM 01-17 DAG 7.1S Card User Guide Interface PoS OC12 Stream Statistics In the example below the card is locked to a PoS OC-12 stream on ports A and B, ports C and D are unused: (cont.) Line Interface Unit (LIU) conditions...

  • Page 29: Status Conditions

    EDM 01-17 DAG 7.1S Card User Guide Status Conditions Interface Statistics A definition of each of the status conditions is described below: (cont.) Condition Definition B1, B2, B3 Bit interleaved parity error as reported by SONET B1, B2 and B3 overhead octets. Indicates the connection between the card and the network is impaired.

  • Page 30: Verify Configuration

    EDM 01-17 DAG 7.1S Card User Guide PoS Network If the card is connected to an PoS network and you have loaded the correct firmware for the network configuration the following values apply: • C2 should be “1 ” for PPP or “...

  • Page 31: Chapter 5: Channelised Configuration

    EDM 01-17 DAG 7.1S Card User Guide Chapter 5: Channelised Configuration Load the Note: Before you can configure the card for capture you must first load the card with the appropriate FPGA images for the type of data you FPGA Images want to capture.
  • Page 32 EDM 01-17 DAG 7.1S Card User Guide Display Turn On (sfppwr) or OFF (nosfppwr) module power for transmit. Current Configuration Firmware: edag71spci_oc12nc_v2_1 2vp30ff1152 2006/05/15 (cont.) 10:34:03 (user) Serial : 8000073 SFP Module detected (detect) or not detected (nodetect). SFP A: nolaser detect nosignal nosfppwr...

  • Page 33: Verify Optical Signal

    EDM 01-17 DAG 7.1S Card User Guide Display If the firmware has not loaded correctly the output will indicate dagconfig “ ” as the component not found SONET/SDH status E1/T1 status Current shown below: Configuration (cont.) SONET/SDH status SONET A: component not found.

  • Page 34: Verify Mapping/Framing Setup

    EDM 01-17 DAG 7.1S Card User Guide Verify Parameters Mapping/ As shown on the previous page, the output displays whether or dagconfig not mapping and framing is setup correctly. Framing Setup For correct setup both ends of the link must match the framing and mapping parameters.

  • Page 35: Configure Line Type

    EDM 01-17 DAG 7.1S Card User Guide Configure Before you configure the DAG 7.1S for specific ATM, Bit HDLC or RAW data capture you must configure the card for the correct line type and speed. Line Type Please refer to...

  • Page 36: Interface Statistics

    EDM 01-17 DAG 7.1S Card User Guide Interface When you have configured the card according to your specific line type and speed requirements you can view the interface statistics to check the status of Statistics each of the links using: Display statistics once (-s) dagconfig –d0 –si...
  • Page 37 EDM 01-17 DAG 7.1S Card User Guide T1 OC-12 In the example below the card is set to on all ports: oc12 vc3 tu11 t1 Line Interface Unit (LIU) conditions Pointer conditions Port valid valid valid valid valid valid valid...

  • Page 38: Interface Statistics

    EDM 01-17 DAG 7.1S Card User Guide Interface Status Conditions Statistics A definition of each of the status conditions is described below: (cont. Condition Definition B1, B2, B3 Bit interleaved parity error as reported by SONET B1, B2 and B3 overhead octets. Indicates the connection between the card and the network is impaired.

  • Page 39: Verify Configuration

    EDM 01-17 DAG 7.1S Card User Guide If the card is connected to a network and you have loaded the correct firmware Verify for the network configuration the following values apply: Configuration • C2 should be “ ” • PTR should be “...

  • Page 40: Configuring Channels

    EDM 01-17 DAG 7.1S Card User Guide Configuring Valid Configurations Channels E1 OC-3/STM-1 and OC-12/STM-4 There are 63 valid channel configuration options for E1 OC-3/STM-1 and these are shown in the diagram below. For E1 OC-12/STM-4 there are 252 (4 x 63) valid channel configuration options because OC-12/STM-4 supports 4 x VC4.
  • Page 41 EDM 01-17 DAG 7.1S Card User Guide T1 OC-3/STM-1 and OC-12/STM-4 Configuring There are 84 valid channel configuration options for T1 OC-3/STM-1 and these Channels are shown in the diagram below.. (cont.) For T1 OC-12/STM-4 there are 336 (4 x 84) valid channel configuration options because T1 OC-12/STM-4 supports 12 x VC3.

  • Page 42: Supported Channel Types

    EDM 01-17 DAG 7.1S Card User Guide Configuring Supported Channel Types Channels The DAG 7.1S supports capture of ATM, Bit HDLC and RAW data over the the following channel types: (cont.) Channel Type Usage PCM 24 E1: Timeslots (25-31 unused)
  • Page 43 EDM 01-17 DAG 7.1S Card User Guide Configuring In the example line below the channel is configured for T1 channelised OC-3/STM-1, port B containing HDLC over PCM-24. Channels (cont.) Header Error TUG3 “0” Port B HDLC Correction (HEC) OFF (Not applicable to T1)
  • Page 44 EDM 01-17 DAG 7.1S Card User Guide Version 3: June 2006 ©2005-2006...

  • Page 45: Chapter 6: Capturing Data

    EDM 01-17 DAG 7.1S Card User Guide Chapter 6: Capturing Data Starting a For a typical data capture session follow the steps listed below: • Session Move to the directory, • Load the appropriate driver, • Then load the appropriate FPGA image to each DAG card as...

  • Page 46: Variable/Fixed Length

    EDM 01-17 DAG 7.1S Card User Guide Setting Variable/Fixed Length Captured The DAG card is able to capture packets in two ways. They are: Packet Size • Variable length capture ( varlen (cont.) • Fixed length capture ( novarlen) In variable length (...

  • Page 47: High Load Performance

    Overview High Load Performance As the DAG 7.1S card captures packets from the network link, it writes a record for each packet into a large buffer in the host PC’s main memory. Avoiding Packet Loss To avoid packet loss, the user application reading the record, such as...

  • Page 48: Increasing Buffer Size

    890MB. Configuration Transmitting The DAG 7.1S is able to transmit as well as receive packets and can capture received traffic while transmitting. This allows you to use capture tools such as , and...

  • Page 49: Explicit Packet Transmission

    This allows the DAG card to be used as a test traffic generator. For further information on using please refer to the EDM04-06: daggen Daggen User Guide available from Endace Customer Support at support@endace.com. ©2005-2006 Version 3: June 2006...

  • Page 50: Configuring Extended Functions

    EDM 01-17 DAG 7.1S Card User Guide Configuring Overview Extended The embedded IXP network processor provides the means to perform the following extended functions: Functions • Reassembly of AAL2/AAL5 frames • IP filtering of PoS packets Before you can make use of these extended functions you must ensure you...

  • Page 51: Starting The Ixp

    Guide available from Endace Customer Support at support@endace.com. The AAL Reassembler allows you to reassemble AAL5 or AAL2 frames Using the AAL on the DAG 7.1S card without involving the host computer in the Reassembler processing. The reassembler receives ATM traffic from the line and then sends it to the host either unchanged, dropped or reassembled into AAL5 or AAL2, frames depending upon the configuration used.

  • Page 52: Using The Pos Ip Filter

    The PoS IP filter allows IPv4/IPv6 and Layer 4 filtering of PoS packets on Using the PoS the DAG 7.1S card without involving the host computer in processing. The IP Filter filter receives PoS traffic from the line and then either sends it to the host unchanged or drops it, depending on the configuration used.

  • Page 53: Chapter 7: Synchronizing 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 54: Timestamps

    EDM 01-17 DAG 7.1S Card User Guide ERF files contains a hardware generated timestamp of each packet’s arrival. Timestamps 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).

  • Page 55: Configuration Tools

    EDM 01-17 DAG 7.1S 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.

  • Page 56: 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 57: Single Card No Reference

    EDM 01-17 DAG 7.1S Card User Guide When a single card is used with no external reference, the card can be Single Card No 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.

  • Page 58: Synchronising With Each Other

    EDM 01-17 DAG 7.1S 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.

  • Page 59: Connector Pin-Outs

    EDM 01-17 DAG 7.1S Card User Guide Overview Connector Pin-outs DAG cards have an 8-pin RJ45 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.
  • Page 60 EDM 01-17 DAG 7.1S Card User Guide Version 3: June 2006 ©2005-2006...

  • Page 61: Chapter 8: Data Formats

    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 7.1S supports the following ERF Types: Description Type...
  • Page 62 EDM 01-17 DAG 7.1S Card User Guide The generic ERF header for channelised links is shown below: Generic Header (cont.) Byte 3 Byte 2 Byte 1 Byte 0 timestamp timestamp type flags rlen lctr/colour wlen MCH (Multichannel header) (rlen - 20) bytes of packet timestamp The time of arrival of the cell, an ERF 64-bit timestamp.

  • Page 63: Type-1 Record

    EDM 01-17 DAG 7.1S Card User Guide Type-1 Record The TYPE_HDLC_PoS variable length record for concatenated links is shown below: Byte 3 Byte 2 Byte 1 Byte 0 timestamp timestamp type 1 flags rlen lctr wlen HDLC Header (rlen - 20) bytes of packet...

  • Page 64: Type-5 Record

    EDM 01-17 DAG 7.1S Card User Guide Type-5 Record The Type 5 Multi-channel HDLC Frame record for channelised links is the same as the normal ERF Types but capture interface is always zero. Note: Fixed length mode is not supported. RX error is set if any MC header error bit is set.

  • Page 65: Type-7 Record

    EDM 01-17 DAG 7.1S Card User Guide The Type 7 Multi-channel ATM Cell record for channelised links is the Type-7 Record same as the normal ERF Types but capture interface is always zero. Note: Fixed length mode is not supported. RX error is set if any MC header error bit is set.

  • Page 66: Type 9 Record

    EDM 01-17 DAG 7.1S Card User Guide Type 9 Record The Type 9 Multi Channel Reassembled AAL5 Frame record for channelised links is the same as the normal ERF Types but capture interface is always zero. Note: Fixed length is not supported. RX error is set if any MC header error bit is set.

  • Page 67: Type 12 Record

    EDM 01-17 DAG 7.1S Card User Guide The Type 12 Multi Channel reassembled AAL2 Frame record for channelised Type 12 Record links is the same as the normal ERF Types but capture interface is always zero. Note: Fixed length is not supported. RX error is set if any MC header error bit is set.

  • Page 68: Type 18 Record

    EDM 01-17 DAG 7.1S Card User Guide The Type 18 Reassembled AAL2 Frame record for concatenated links is Type 18 Record shown below: BYTE 3 BYTE 2 BYTE 1 BYTE 0 timestamp timestamp type 18 flags rlen lctr wlen AAL2 Extension Header...

  • Page 69: Chapter 9 Troubleshooting

    EDM 01-17 DAG 7.1S Card User Guide Chapter 9 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.

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