ORBIT-USER: Doubt regarding SAMPLE filter in OML

semhatre at cc.gatech.edu semhatre at cc.gatech.edu
Fri Nov 24 13:16:16 EST 2006


Hi.

I am attaching the modified script though I have not made much changes.
I have used the Hello world script itself.

Thanks.

Regards,
Swapnil

> Could you attach your experiment script please ? and any other scripts
> such as protoypes etc that you may have modified.
>
> Regarding the first 38 packets: note that the time window for those
> packets is about one second. It is probably because of the lag of
> starting the receiver application/oml on the receiver.
>
> -Pandurang
>
> semhatre at cc.gatech.edu wrote:
>> Hi.
>> I changed the filter in sender and receiver protoypes to SAMPLE from
>> TIME
>> to find per packet data ( with helloworld experiment). The SAMPLE SIZE
>> was
>> kept at 1.In the tables I got to see that alternate packets got dropped.
>> I
>> am pasting the sample I got below. Can I get any help to understand why
>> I
>> am getting such an output?
>>
>> Receiver_sender_port table --->
>> +---------+-------------+------------+-----------+---------+--------------------------+--------------+------+----------+
>> | node_id | sequence_no | timestamp  | pkt_seqno | flow_no |
>> rcvd_pkt_size_sample_sum | rx_timestamp | rssi | xmitrate |
>> +---------+-------------+------------+-----------+---------+--------------------------+--------------+------+----------+
>> | node1-2 |           2 | 1164230172 |        41 |       0 |
>>       1024 |     76572887 |    0 |        0 |
>> | node1-2 |           3 | 1164230172 |        43 |       0 |
>>       1024 |     76572940 |    0 |        0 |
>> | node1-2 |           4 | 1164230172 |        45 |       0 |
>>       1024 |     76572995 |    0 |        0 |
>> | node1-2 |           5 | 1164230173 |        47 |       0 |
>>       1024 |     76573050 |    0 |        0 |
>> | node1-2 |           6 | 1164230173 |        49 |       0 |
>>       1024 |     76573104 |    0 |        0 |
>> | node1-2 |           7 | 1164230173 |        51 |       0 |
>>       1024 |     76573159 |    0 |        0 |
>> | node1-2 |           8 | 1164230173 |        53 |       0 |
>>       1024 |     76573213 |    0 |        0 |
>> | node1-2 |           9 | 1164230173 |        55 |       0 |
>>       1024 |     76573268 |    0 |        0 |
>> | node1-2 |          10 | 1164230173 |        57 |       0 |
>>       1024 |     76573323 |    0 |        0 |
>> | node1-2 |          11 | 1164230173 |        59 |       0 |
>>       1024 |     76573377 |    0 |        0 |
>> | node1-2 |          12 | 1164230173 |        61 |       0 |
>>       1024 |     76573432 |    0 |        0 |
>> | node1-2 |          13 | 1164230173 |        63 |       0 |
>>       1024 |     76573487 |    0 |        0 |
>> | node1-2 |          14 | 1164230173 |        65 |       0 |
>>       1024 |     76573541 |    0 |
>>
>> The corresponding sender_otg_senderport table -->
>> +---------+-------------+------------+-----------+---------------------+---------------+--------------+
>> | node_id | sequence_no | timestamp  | pkt_seqno | pkt_size_sample_sum |
>> gen_timestamp | tx_timestamp |
>> +---------+-------------+------------+-----------+---------------------+---------------+--------------+
>> | node1-1 |           1 | 1164230171 |         1 |                1024 |
>>     27.3067 |     76571793 |
>> | node1-1 |           2 | 1164230171 |         2 |                1024 |
>>     54.6133 |     76571820 |
>> | node1-1 |           3 | 1164230171 |         3 |                1024 |
>>       81.92 |     76571848 |
>> | node1-1 |           4 | 1164230171 |         4 |                1024 |
>>     109.227 |     76571875 |
>> | node1-1 |           5 | 1164230171 |         5 |                1024 |
>>     136.533 |     76571902 |
>> | node1-1 |           6 | 1164230171 |         6 |                1024 |
>>      163.84 |     76571930 |
>> | node1-1 |           7 | 1164230171 |         7 |                1024 |
>>     191.147 |     76571957 |
>> | node1-1 |           8 | 1164230171 |         8 |                1024 |
>>     218.453 |     76571984 |
>> | node1-1 |           9 | 1164230172 |         9 |                1024 |
>>      245.76 |     76572012 |
>> | node1-1 |          10 | 1164230172 |        10 |                1024 |
>>     273.067 |     76572039 |
>> | node1-1 |          11 | 1164230172 |        11 |                1024 |
>>     300.373 |     76572066 |
>> | node1-1 |          12 | 1164230172 |        12 |                1024 |
>>      327.68 |     76572094 |
>> | node1-1 |          13 | 1164230172 |        13 |                1024 |
>>     354.987 |     76572121 |
>> | node1-1 |          14 | 1164230172 |        14 |                1024 |
>>     382.293 |     76572148 |
>> | node1-1 |          15 | 1164230172 |        15 |                1024 |
>>       409.6 |     76572176 |
>> | node1-1 |          16 | 1164230172 |        16 |                1024 |
>>     436.907 |     76572203 |
>> | node1-1 |          17 | 1164230172 |        17 |                1024 |
>>     464.213 |     76572230 |
>> | node1-1 |          18 | 1164230172 |        18 |                1024 |
>>      491.52 |     76572258 |
>> | node1-1 |          19 | 1164230172 |        19 |                1024 |
>>     518.827 |     76572285 |
>> | node1-1 |          20 | 1164230172 |        20 |                1024 |
>>     546.133 |     76572312 |
>> | node1-1 |          21 | 1164230172 |        21 |                1024 |
>>      573.44 |     76572339 |
>> | node1-1 |          22 | 1164230172 |        22 |                1024 |
>>     600.747 |     76572367 |
>> | node1-1 |          23 | 1164230172 |        23 |                1024 |
>>     628.053 |     76572394 |
>> | node1-1 |          24 | 1164230172 |        24 |                1024 |
>>      655.36 |     76572421 |
>> | node1-1 |          25 | 1164230172 |        25 |                1024 |
>>     682.667 |     76572449 |
>> | node1-1 |          26 | 1164230172 |        26 |                1024 |
>>     709.973 |     76572476 |
>> | node1-1 |          27 | 1164230172 |        27 |                1024 |
>>      737.28 |     76572503 |
>> | node1-1 |          28 | 1164230172 |        28 |                1024 |
>>     764.587 |     76572531 |
>> | node1-1 |          29 | 1164230172 |        29 |                1024 |
>>     791.893 |     76572558 |
>> | node1-1 |          30 | 1164230172 |        30 |                1024 |
>>       819.2 |     76572585 |
>> | node1-1 |          31 | 1164230172 |        31 |                1024 |
>>     846.507 |     76572613 |
>> | node1-1 |          32 | 1164230172 |        32 |                1024 |
>>     873.813 |     76572640 |
>> | node1-1 |          33 | 1164230172 |        33 |                1024 |
>>      901.12 |     76572667 |
>> | node1-1 |          34 | 1164230172 |        34 |                1024 |
>>     928.427 |     76572695 |
>> | node1-1 |          35 | 1164230172 |        35 |                1024 |
>>     955.733 |     76572722 |
>> | node1-1 |          36 | 1164230172 |        36 |                1024 |
>>      983.04 |     76572749 |
>> | node1-1 |          37 | 1164230172 |        37 |                1024 |
>>     1010.35 |     76572776 |
>> | node1-1 |          38 | 1164230172 |        38 |                1024 |
>>     1037.65 |     76572804 |
>> | node1-1 |          39 | 1164230172 |        39 |                1024 |
>>     1064.96 |     76572831 |
>> | node1-1 |          40 | 1164230172 |        40 |                1024 |
>>     1092.27 |     76572858 |
>> | node1-1 |          41 | 1164230172 |        41 |                1024 |
>>     1119.57 |     76572886 |
>> | node1-1 |          42 | 1164230172 |        42 |                1024 |
>>     1146.88 |     76572913 |
>> | node1-1 |          43 | 1164230172 |        43 |                1024 |
>>     1174.19 |     76572940 |
>> | node1-1 |          44 | 1164230172 |        44 |                1024 |
>>     1201.49 |     76572968 |
>> | node1-1 |          45 | 1164230172 |        45 |                1024 |
>>      1228.8 |     76572995 |
>> | node1-1 |          46 | 1164230173 |        46 |                1024 |
>>     1256.11 |     76573022 |
>> | node1-1 |          47 | 1164230173 |        47 |                1024 |
>>     1283.41 |     76573050 |
>> | node1-1 |          48 | 1164230173 |        48 |                1024 |
>>     1310.72 |     76573077 |
>> | node1-1 |          49 | 1164230173 |        49 |                1024 |
>>     1338.03 |     76573104 |
>> | node1-1 |          50 | 1164230173 |        50 |                1024 |
>>     1365.33 |     76573131 |
>> | node1-1 |          51 | 1164230173 |        51 |                1024 |
>>     1392.64 |     76573158 |
>> | node1-1 |          52 | 1164230173 |        52 |                1024 |
>>     1419.95 |     76573185 |
>> | node1-1 |          53 | 1164230173 |        53 |                1024 |
>>     1447.25 |     76573212 |
>> | node1-1 |          54 | 1164230173 |        54 |                1024 |
>>     1474.56 |     76573240 |
>> | node1-1 |          55 | 1164230173 |        55 |                1024 |
>>     1501.87 |     76573267 |
>> | node1-1 |          56 | 1164230173 |        56 |                1024 |
>>     1529.17 |     76573294 |
>> | node1-1 |          57 | 1164230173 |        57 |                1024 |
>>     1556.48 |     76573322 |
>> | node1-1 |          58 | 1164230173 |        58 |                1024 |
>>     1583.79 |     76573349 |
>> | node1-1 |          59 | 1164230173 |        59 |                1024 |
>>     1611.09 |     76573376 |
>> | node1-1 |          60 | 1164230173 |        60 |                1024 |
>>      1638.4 |     76573404 |
>>
>>
>> Please see that the first 38 packets get dropped.
>>
>> Regards,
>> Swapnil
>
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