Endace Measurement Systems Limited
http://www.endace.com
EDM01.05-04r1 DAG 3.6GE User Manual
Copyright, all rights reserved.
10
Revision 7. 22 September 2005.
3.4 DAG 3.6GE Card Capture Session
Description
A successful DAG 3.6GE card capture session is accomplished by
checking the card has correctly detected the link. This is followed by
configuring the DAG card for normal use.
Procedure
Follow these steps for a successful DAG 3.6GE card capture session.
Step 1.
Check Cabling
Ensure cabling is correctly connected and that RJ45 connectors are clipped
into the sockets.
Step 2.
Understand link layer configuration
Learn about the link layer configuration in use at the network link being
monitored.
Important parameters include specific scrambling options in use.
If the information cannot be obtained reliably, the card can be made to work
by varying the parameters until data is arriving at the host system.
Step 3.
Check FPGA Images are Loaded
Ensure the most recent pair of FPGA images have been loaded onto the
card. The link status and activity LEDs will not activate until the upper
FPGA firmware is downloaded.
dag@endace:~$ dagrom -rvp –d dag0 -f xilinx/dag36epci-
erf.bit
dag@endace:~$ dagld -x –d dag0 –f xilinx/dag36gepp-erf.bit
dag@endace:~$ dagthree -d dag0
link noreset auto enablea
packet novarlen slen=48 noalign64
packetA drop=0
pci 33MHz 32-bit buf=32MB rxstreams=1 txstreams=0 mem=0:0
NOTE: The
dagld
step has been missed if the card read-out looks like this:
dag@endace:~$ dagthree -d dag0
link noreset 100
packet novarlen slen=1128481603 noalign64
packetA drop=1229539657
pci
33MHz 32-bit buf=32MB rxstreams=1 txstreams=0 mem=0:0
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