EXAMPLE of MGEN6 Test
---------------------

We want to measure the link between two hosts: "pampol-axi" and "malv".

1.- We run "drec" in one of the hosts (pampol-axi) in this case. Drec will log all the packets sent by the other host (malv). With this packets logged we will be able to calculate some statistics.

[root@pampol-axi /root]# drec6 -s 200000 testIPv6
DREC: Version 3.1 IPv6
DREC: program priority set to 98

DREC: Listening for packets ...
      (Hit <CTRL-C> to stop)
DREC: Closing log file ...

2.- We execute mgen6 in the other host (malv). We configure mgen to send to the packets to "pampol-axi" with a ratio of 900 packets per second, 1280 bytes packet size and a constant flow of 10 seconds.

malv:/root ->mgen6 -b pampol-axi -r 900 -s 1280 -d 10 200000

MGEN: Version 3.1 IPv6
MGEN: program priority set to 98

MGEN: Loading event queue ...
MGEN: Seeding random number generator ...
MGEN: Beginning packet generation ...
      (Hit <CTRL-C> to stop)

MGEN: Packets Tx'd       :     9000
MGEN: Transmission period:    10.004 seconds.
MGEN: Ave Tx pkt rate    :   899.630 pps.
MGEN: Interface Stats    :     eth0
             Frames Tx'd :     9002
               Tx Errors :        0
              Collisions :        0
MGEN: Done.

When mgen6 finishes, it shows some statistics.

3- When mgen6 has fihised, we can stop drec and it shows some statistics.

DREC: Packets logged: 9000
DREC: Interface Stats    :     eth0
           Frames Recv'd :        2
               Rx Errors :        0
DREC: Done.

4.- Using the file created by drec, we can calculate a lot of statistics using the mcalc utility.

[root@pampol-axi /root]# decode testIPv6 | mcalc6
MCALC: Version 3.1 IPv6
---------------------------------------------------------
FLOW>0001   SOURCE>3ffe:3326:3:916::702/1024  DESTINATION>3ffe:3326:3:916::701/5000
   Num pkts recvd  :  9000
   Join delay      :  0.000000 sec
   Recv pkt rate   :   897.796 pkt/sec
   Recv data rate  :  9194.451 kbps
   Pkts dropped    :     0
   Ave. Tx Delay   :  0.014181 sec
   Max. Tx Delay   :  0.024808 sec
   Min. Tx Delay   :  0.001577 sec
   Delay variation :  0.023231 sec
---------------------------------------------------------
MCALC: SUMMARY RESULTS
MCALC: Number of active flows  :      1 flows
MCALC: Number of groups joined :      0 groups

MCALC: GROUP JOIN LATENCY STATISTICS
MCALC: Ave. group join latency :  0.000 sec
MCALC: Min. group join latency :   0.000000 sec
MCALC: Max. group join latency :   0.000000 sec

MCALC: DATA TRANSMISSION LATENCY STATISTICS (Time-sync'd machines required!)
MCALC: Ave. data latency       :   0.014181 sec
MCALC: Min. data latency       :   0.001577 sec
MCALC: Max. data latency       :   0.024808 sec

MCALC: PER-FLOW DATA LATENCY VARIATION
MCALC: Ave. latency variation  :   0.023231 sec
MCALC: Min. latency variation  :   0.023231 sec
MCALC: Max. latency variation  :   0.023231 sec

MCALC: PACKET RECEPTION STATISTICS
MCALC: Total packets received  :   9000 pkts
MCALC: Total recv packet rate  :    897.796 pkt/sec
MCALC: Total recv data rate    :   9194.451 kbps
MCALC: Est. num pkts dropped   :      0 pkts