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| author | Ulf Lamping <ulf.lamping@web.de> | 2006-06-07 08:36:29 +0000 |
|---|---|---|
| committer | Ulf Lamping <ulf.lamping@web.de> | 2006-06-07 08:36:29 +0000 |
| commit | ab40a87c67fb2147cc1eef2c25b7dc8954f595d4 (patch) | |
| tree | f4f7151c15dbef7a765e72541ff6f86adc24e351 /docbook/wsug_src | |
| parent | c2e72cf272616b1f450fda834c6843bfadaacdc8 (diff) | |
| download | wireshark-ab40a87c67fb2147cc1eef2c25b7dc8954f595d4.tar.gz | |
explain why packets of layers won't sum up, "fixes" eth#988
svn path=/trunk/; revision=18381
Diffstat (limited to 'docbook/wsug_src')
| -rw-r--r-- | docbook/wsug_src/WSUG_chapter_statistics.xml | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/docbook/wsug_src/WSUG_chapter_statistics.xml b/docbook/wsug_src/WSUG_chapter_statistics.xml index d56941af03..a95cd13ac0 100644 --- a/docbook/wsug_src/WSUG_chapter_statistics.xml +++ b/docbook/wsug_src/WSUG_chapter_statistics.xml @@ -167,6 +167,16 @@ </note> <note><title>Note!</title> <para> + Protocol layers can consist of packets that won't contain any higher layer + protocol, so the sum of all higher layer packets may not sum up to the + protocols packet count. + Example: In the screenshot TCP has 85,83% but the sum of the subprotocols + (HTTP, ...) is much less. This may be caused by TCP protocol overhead, + e.g. TCP ACK packets won't be counted as packets of the higher layer). + </para> + </note> + <note><title>Note!</title> + <para> A single packet can contain the same protocol more than once. In this case, the protocol is counted more than once. For example: in some tunneling configurations the IP layer can appear twice. |