PERFORCE change 114247 for review

[Christian S.J. Peron]

http://perforce.freebsd.org/chv.cgi?CH=114247

Change 114247 by csjp at csjp_rnd01 on 2007/02/08 16:57:01

	Add notes about testing details

Affected files ...

.. //depot/projects/zcopybpf/utils/bpfnull/README#2 edit

Differences ...

==== //depot/projects/zcopybpf/utils/bpfnull/README#2 (text+ko) ====

@@ -40,3 +40,20 @@
 
 SEE ALSO
     netstat, tcpreplay (port)
+
+TESTING
+
+    +------------------+              +---------------+
+    | packet generator |              | IDS box       |
+    | using tcpreplay  |--------------| using bpfnull |
+    |                  | X-OVER CABLE |               |
+    +------------------+              +---------------+
+
+    In some cases, for "sustained" testing, we go through a Catalyst 2950
+    so we can monitor Tx/Rx packets, packet per second rates (over five
+    minnute samplings) to look at what is being transmitted and received.
+
+   tcpreplay -l 5000 -R -i bge0 icmp.10.byte.packets.pcap
+
+   Cycle through every packet in icmp.10.byte.packets.pcap (generated using
+   tcpdump -w) 5000 times, sending as fast as you can.