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EDM01-07: DAG 3.7G Card User Guide 

©2005 

Version 7: May 2006 

 

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 

 

10 

Force 10BaseT mode, 10Mbps 

 

100 

Force 100BaseTX mode, 100Mbp 

 

1000 

Force 1000BaseT mode, 1000Mbps 

 

slen=X 

Capture X bytes of the packet content 

 

[no]varlen 

The card can operate in two modes, variable length capture 

(

varlen

), and fixed length capture (

novarlen

). 

In variable length capture mode, a maximum capture size is 

set with 

slen=N

 

bytes. This figure should be in the range 32 

to 9600 and is rounded down to the nearest multiple of 8.  
Packets longer than slen are truncated.  Packets shorter than 

slen will produce shorter records, saving bandwidth and 

storage space. 
In fixed length mode, packets longer than the selected slen 

are truncated to slen, but packets shorter than slen will 

produce records that are padded out to the slen length.  

 

Avoid large values of slen in fixed length mode, as short 

packets arriving will produce large padded records, wasting 

bandwidth and storage space.  

 

rxsplit 

Send data from Port A to Stream 0. 

Equivalent to Port B = Stream 2 

Send data from Port B to Stream 2. 

Equivalent to Port B = Stream 2 

 

rxmerge 

Send data from Port A to Stream 0. 

Send data from Port B to Stream 0. 

Equivalent to Port B = Stream 0 

 

Note: You can not change 

align64

. This is permanently set. 

 
 

Example 

For instance, if the card is configured with fixed length capture 

(

novarlen

)

, but 

configuration to variable length capture is wanted, removing or adding the "

no

prefix will change the setting

.

 Simply type: 

dagthree varlen 

linkA   noreset 10 
linkB   noreset 10 
packetA varlen slen=1536 align64 
packetB varlen slen=1536 align64 
packetA drop=0 
packetB drop=0 
rx      steer=stream0 
tx      noifaceswap nooverlap 
terf    terf_strip32 
pci     33MHz 64-bit buf=128MiB rxstreams=2 txstreams=1 mem=56:16:56:0 
Firmware: dag37gepci_erf_v2_5 3s1500fg456 2006/03/28 17:07:15  (user) Card 
Serial: 4925 MAC Address A: 00:00:00:00:00:00 MAC Address B: 
00:00:00:00:00:00 MAC Address C: 00:00:00:00:00:00 MAC Address D: 
00:00:00:00:00:00 
 

Содержание DAG 3.7G Series

Страница 1: ......

Страница 2: ...39 0540 Fax 64 7 839 0543 Americas Endace USA Ltd Suite 220 11495 Sunset Hill Road Reston Virginia 20190 United States of America Phone 1 703 382 0155 Fax 1 703 382 0155 Europe Middle East Africa Enda...

Страница 3: ...d Materials The product that this manual pertains to may include extra components and materials that are not essential to its basic operation but are necessary to ensure compliance to the product stan...

Страница 4: ...EDM01 07 DAG 3 7G Card User Guide Version 7 May 2006 2005...

Страница 5: ...ter 3 Configuring the Card 7 Introduction 7 Engaging Failsafe Relays 7 LEDs and Inputs 7 Configuration Utility 8 Default Configuration 8 Interface Statistics 10 Chapter 4 Capturing Data 13 Starting a...

Страница 6: ...1 07 DAG 3 7G Card User Guide Version 7 May 2006 ii 2005 Table of Contents cont Chapter 6 Data Formats 25 Overview 25 Generic Header 25 Type 2 Record 26 Chapter 7 Troubleshooting 27 Reporting Problems...

Страница 7: ...for your specific network requirements Running a data capture session Synchronising clock time Data formats You can also find additional information relating to functions and features of the DAG 3 7G...

Страница 8: ...Installation Guide EDM 04 02 Windows Software Installation Guide Other Systems For advice on using an operating system that is substantially different from either of those specified above please cont...

Страница 9: ...series card interfaces and fed through framers into the Xilinx FPGA This FPGA contains an Ethernet processor and the DUCK timestamp engine Because of close association of the components packets are ti...

Страница 10: ...e 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...

Страница 11: ...M 04 02 Windows Software Installation Guide as appropriate which are included on the CD shipped with the DAG card Inserting the DAG Card To insert the DAG card in the PC follow the steps described bel...

Страница 12: ...ernet 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 By default DAG 3 7G card automatic...

Страница 13: ...ne forwarding applications to reconnect the two ports in case of power failure When the relays are in this state the ports are not connected to the physical layer devices on the card To use the card i...

Страница 14: ...second More details about the meaning of the various parameters options are supplied through the help page dagthree h as well as via the manual page Default Configuration Before configuring the card f...

Страница 15: ...ed out to the slen length Avoid large values of slen in fixed length mode as short packets arriving will produce large padded records wasting bandwidth and storage space rxsplit Send data from Port A...

Страница 16: ...rr Ethernet Symbol Error Count Interface Statistics cont Example The following example is for a card with no valid input dagthree d dag0 si Spd Lnk FD Neg JB MA RF Err Spd Lnk FD Neg JB MA RF Err 1000...

Страница 17: ...0 1 0 0 10 1 1 1 0 0 0 0 10 1 1 1 0 1 0 0 10 1 1 1 0 0 0 0 10 1 1 1 0 1 0 0 10 1 1 1 0 0 0 0 If the RF or JB bits are 1 s this indicates a problem with the network link This may or may not be related...

Страница 18: ...EDM01 07 DAG 3 7G Card User Guide Version 7 May 2006 12 2005...

Страница 19: ...view As the DAG 3 7T 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...

Страница 20: ...is usually sufficient however if you do need to increase the amount of reserved memory please contact Endace customer support at support endace com for more information The dsize option sets the amou...

Страница 21: ...mitting You can capture received traffic while transmitting Capture programs such as dagsnap dagconvert and dagbits can be used while dagflood is sending packets Configuring DAG card for transmission...

Страница 22: ...C CPU and memory performance dagfwddemo Program The dagfwddemo program is provided as a demonstration of how this can be achieved This program forwards packets bidirectionally applying a user supplied...

Страница 23: ...ween DAG cards and coordinated universal time UTC You can obtain an accurate time reference by connecting an external clock to the DAG card using the time synchronisation connector Alternatively you c...

Страница 24: ...is allows an ultimate resolution of 2 32 seconds or approximately 233 picoseconds The ERF timestamp allows you to find the difference between two timestamps using a single 64 bit subtraction You do no...

Страница 25: ...DAG device K timeout sync timeout in seconds default 60 l threshold health threshold in ns default 596 Option default RS422 in none out none None in none out rs422in RS422 input hostin Host input unu...

Страница 26: ...Failures 0 Resyncs 0 error Freq 30ppb Phase 15ns Worst Freq 2092838ppb Worst Phase 33473626ns crystal Actual 100000023Hz Synthesized 67108864Hz input Total 225 Bad 0 Singles Missed 1 Longest Sequence...

Страница 27: ...tus Synchronised Threshold 11921ns Failures 0 Resyncs 0 error Freq 1836ppb Phase 605ns Worst Freq 143377ppb Worst Phase 88424ns crystal Actual 49999347Hz Synthesized 16777216Hz input Total 87039 Bad 0...

Страница 28: ...u Apr 28 14 48 34 2005 dag No active input Free running Note The slave card configuration is not shown as the default configuration will work Synchronising with Host To prevent the DAG card clock time...

Страница 29: ...ried on circuit A and the serial packet is connected to the B circuit Pin Assignments The 4 pin RJ11 connector pin assignments are shown below 1 Channel A 2 Channel B 3 Channel B 4 Channel A Ethernet...

Страница 30: ...EDM01 07 DAG 3 7G Card User Guide Version 7 May 2006 24 2005...

Страница 31: ...and splitting to be performed arbitrarily on ERF record boundaries Generic Header All ERF records share some common fields Timestamps are in little endian Pentium native byte order All other fields a...

Страница 32: ...value of 0 indicates the record was received from the host In the XScale Tx hole a value of 1 tells the ERF Mux to direct packets to the line A value of 0 directs packets to the host rlen Record lengt...

Страница 33: ...number Host PC type and configuration Host PC operating system version DAG software version package in use Any compiler errors or warnings when building DAG driver or tools For Linux and FreeBSD mess...

Страница 34: ...EDM01 07 DAG 3 7G Card User Guide Version 7 May 2006 28 2005...

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