forked from osmocom/wireshark
640 lines
21 KiB
XML
640 lines
21 KiB
XML
<!-- WSUG Chapter Statistics -->
|
|
<!-- $Id$ -->
|
|
|
|
<chapter id="ChStatistics">
|
|
<title>Statistics</title>
|
|
<section id="ChStatIntroduction">
|
|
<title>Introduction</title>
|
|
<para>
|
|
Wireshark provides a wide range of network statistics which can be accessed via the
|
|
<command>Statistics</command> menu.
|
|
</para>
|
|
<para>
|
|
These statistics range from general information about the loaded capture file
|
|
(like the number of captured packets), to statistics about specific protocols
|
|
(e.g. statistics about the number of HTTP requests and responses captured).
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para>
|
|
General statistics:
|
|
</para>
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para><command>Summary</command> about the capture file.</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>Protocol Hierarchy</command> of the captured packets.</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>Conversations</command> e.g. traffic between specific IP
|
|
addresses.</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>Endpoints</command> e.g. traffic to and from an IP
|
|
addresses.</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>IO Graphs</command> visualizing the number of packets (or
|
|
similar) in time.</para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
Protocol specific statistics:
|
|
</para>
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para><command>Service Response Time</command> between request and response
|
|
of some protocols.</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>Various other</command> protocol specific statistics.</para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
</listitem>
|
|
</itemizedlist>
|
|
<note><title>Note!</title>
|
|
<para>
|
|
The protocol specific statistics requires detailed knowledge about the
|
|
specific protocol. Unless you are familiar with that protocol, statistics
|
|
about it will be pretty hard to understand.
|
|
</para>
|
|
</note>
|
|
</para>
|
|
</section>
|
|
|
|
<section id="ChStatSummary">
|
|
<title>The "Summary" window</title>
|
|
<para>
|
|
General statistics about the current capture file.
|
|
</para>
|
|
<figure><title>The "Summary" window</title>
|
|
<graphic entityref="WiresharkStatsSummary" format="PNG"/>
|
|
</figure>
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para><command>File</command>: general information about the capture file.
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>Time</command>: the timestamps when the first and the
|
|
last packet were captured (and the time between them).</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>Capture</command>: information from the time when the
|
|
capture was done (only available if the packet data was captured from the
|
|
network and not loaded from a file).</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>Display</command>: some display related information.</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>Traffic</command>: some statistics of the network traffic seen.
|
|
If a display filter is set, you will see values in the Captured column,
|
|
and if any packages are marked, you will see values in the Marked column.
|
|
The values in the <command>Captured</command> column will remain the same as
|
|
before, while the values in the <command>Displayed</command> column will
|
|
reflect the values corresponding to the packets shown in the display.
|
|
The values in the <command>Marked</command> column will reflect the values
|
|
corresponding to the marked packages.
|
|
</para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
</section>
|
|
|
|
<section id="ChStatHierarchy">
|
|
<title>The "Protocol Hierarchy" window</title>
|
|
<para>
|
|
The protocol hierarchy of the captured packets.
|
|
<figure><title>The "Protocol Hierarchy" window</title>
|
|
<graphic entityref="WiresharkStatsHierarchy" format="PNG"/>
|
|
</figure>
|
|
This is a tree of all the protocols in the capture. You can collapse or
|
|
expand subtrees, by clicking on the plus / minus icons. By default, all
|
|
trees are expanded.
|
|
</para>
|
|
<para>
|
|
Each row contains the statistical values of one protocol.
|
|
The <command>Display filter</command> will show the current display filter.
|
|
</para>
|
|
<para>
|
|
The following columns containing the statistical values are available:
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para><command>Protocol</command>: this protocol's name</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>% Packets</command>: the percentage of protocol packets,
|
|
relative to all packets in the capture</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>Packets</command>: the absolute number of packets of this
|
|
protocol</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>Bytes</command>: the absolute number of bytes of this
|
|
protocol</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>MBit/s</command>: the bandwidth of this protocol, relative
|
|
to the capture time</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>End Packets</command>: the absolute number of packets of this
|
|
protocol (where this protocol was the highest protocol to decode)
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>End Bytes</command>: the absolute number of bytes of this protocol
|
|
(where this protocol was the highest protocol to decode)
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>End MBit/s</command>: the bandwidth of this protocol, relative to
|
|
the capture time (where this protocol was the highest protocol to decode)
|
|
</para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
</para>
|
|
<note><title>Note!</title>
|
|
<para>
|
|
Packets will usually contain multiple protocols, so more than one protocol
|
|
will be counted for each packet.
|
|
Example: In the screenshot IP has 99,17% and TCP 85,83% (which is together
|
|
much more than 100%).
|
|
</para>
|
|
</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.
|
|
</para>
|
|
</note>
|
|
</section>
|
|
|
|
<section id="ChStatConversations">
|
|
<title>Conversations</title>
|
|
<para>
|
|
Statistics of the captured conversations.
|
|
</para>
|
|
<section>
|
|
<title>What is a Conversation?</title>
|
|
<para>
|
|
A network conversation is the traffic between two specific endpoints. For
|
|
example, an IP conversation is all the traffic between two IP addresses.
|
|
The description of the known endpoint types can be found in
|
|
<xref linkend="ChStatEndpointDefinition"/>.
|
|
</para>
|
|
</section>
|
|
<section id="ChStatConversationsWindow"><title>The "Conversations" window</title>
|
|
<para>
|
|
The conversations window is similar to the
|
|
endpoint Window; see <xref linkend="ChStatEndpointsWindow"/> for a
|
|
description of their common features. Along with addresses, packet
|
|
counters, and byte counters the conversation window adds four columns: the time in seconds between the start of the capture and the start of the conversation ("Rel Start"), the duration of the conversation in seconds, and the average bits (not bytes) per second in each direction.
|
|
<figure><title>The "Conversations" window</title>
|
|
<graphic entityref="WiresharkStatsConversations" format="PNG"/>
|
|
</figure>
|
|
</para>
|
|
<para>
|
|
Each row in the list shows the statistical values for exactly one conversation.
|
|
</para>
|
|
<para>
|
|
<command>Name resolution</command> will be done if selected in the window
|
|
and if it is active for the specific protocol layer (MAC layer for the
|
|
selected Ethernet endpoints page).
|
|
</para>
|
|
<para>
|
|
<command>Limit to display filter</command> will only show conversations matching
|
|
the current display filter.
|
|
</para>
|
|
<para>
|
|
The <command>copy</command> button will copy the list values to the
|
|
clipboard in CSV (Comma Separated Values) format.
|
|
</para>
|
|
<tip><title>Tip!</title>
|
|
<para>
|
|
This window will be updated frequently, so it will be useful, even if
|
|
you open it before (or while) you are doing a live capture.
|
|
</para>
|
|
</tip>
|
|
</section>
|
|
<section id="ChStatConversationListWindow">
|
|
<title>The protocol specific "Conversation List" windows</title>
|
|
<para>
|
|
Before the combined window described above was available, each of its
|
|
pages was shown as a separate window. Even though the combined window is
|
|
much more convenient to use, these separate windows are still
|
|
available. The main reason is that they might process faster for
|
|
very large capture files. However, as the functionality is exactly the
|
|
same as in the combined window, they won't be discussed in detail here.
|
|
</para>
|
|
</section>
|
|
</section>
|
|
|
|
<section id="ChStatEndpoints">
|
|
<title>Endpoints</title>
|
|
<para>
|
|
Statistics of the endpoints captured.
|
|
<tip><title>Tip!</title>
|
|
<para>
|
|
If you are looking for a feature other network tools call a <command>
|
|
hostlist</command>, here is the right place to look. The list of
|
|
Ethernet or IP endpoints is usually what you're looking for.
|
|
</para>
|
|
</tip>
|
|
</para>
|
|
<section id="ChStatEndpointDefinition"><title>What is an Endpoint?</title>
|
|
<para>
|
|
A network endpoint is the logical endpoint of separate protocol traffic of
|
|
a specific protocol layer. The endpoint statistics of Wireshark will take
|
|
the following endpoints into account:
|
|
</para>
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para>
|
|
<command>Ethernet</command>: an Ethernet endpoint is identical to the
|
|
Ethernet's MAC address.
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>Fibre Channel</command>: XXX - insert info here.
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>FDDI</command>: a FDDI endpoint is identical to the FDDI MAC
|
|
address.
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>IPv4</command>: an IP endpoint is identical to its IP address.
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>IPX</command>: XXX - insert info here.
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>TCP</command>: a TCP endpoint is a combination of the IP address
|
|
and the TCP port used, so different TCP ports on the same IP address are
|
|
different TCP endpoints.
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>Token Ring</command>: a Token Ring endpoint is identical to the
|
|
Token Ring MAC address.
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>UDP</command>: a UDP endpoint is a combination of the IP address
|
|
and the UDP port used, so different UDP ports on the same IP address are
|
|
different UDP endpoints.
|
|
</para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
<note><title>Broadcast / multicast endpoints</title>
|
|
<para>
|
|
Broadcast / multicast traffic will be shown separately as additional
|
|
endpoints. Of course, as these endpoints are virtual endpoints, the real
|
|
traffic will be received by all (multicast: some) of the listed unicast
|
|
endpoints.
|
|
</para>
|
|
</note>
|
|
</section>
|
|
<section id="ChStatEndpointsWindow">
|
|
<title>The "Endpoints" window</title>
|
|
<para>
|
|
This window shows statistics about the endpoints captured.
|
|
</para>
|
|
<figure><title>The "Endpoints" window</title>
|
|
<graphic entityref="WiresharkStatsEndpoints" format="PNG"/>
|
|
</figure>
|
|
<para>
|
|
For each supported protocol, a tab is shown in this window.
|
|
Each tab label shows the number of endpoints captured (e.g. the
|
|
tab label "Ethernet: 5" tells you that five ethernet endpoints have been
|
|
captured). If no endpoints of a specific protocol were captured, the tab
|
|
label will be greyed out (although the related page can still be selected).
|
|
</para>
|
|
<para>
|
|
Each row in the list shows the statistical values for exactly one endpoint.
|
|
</para>
|
|
<para>
|
|
<command>Name resolution</command> will be done if selected in the window
|
|
and if it is active for the specific protocol layer (MAC layer for the
|
|
selected Ethernet endpoints page). As you might have noticed, the first
|
|
row has a name
|
|
resolution of the first three bytes "Netgear", the second row's address was
|
|
resolved to an IP address (using ARP) and the third was resolved
|
|
to a broadcast (unresolved this would still be: ff:ff:ff:ff:ff:ff); the last two
|
|
Ethernet addresses remain unresolved.
|
|
</para>
|
|
<para>
|
|
<command>Limit to display filter</command> will only show conversations matching
|
|
the current display filter.
|
|
</para>
|
|
<para>
|
|
The <command>copy</command> button will copy the list values to the
|
|
clipboard in CSV (Comma Separated Values) format.
|
|
</para>
|
|
<tip><title>Tip!</title>
|
|
<para>
|
|
This window will be updated frequently, so it will be useful, even if
|
|
you open it before (or while) you are doing a live capture.
|
|
</para>
|
|
</tip>
|
|
</section>
|
|
<section id="ChStatEndpointListWindow">
|
|
<title>The protocol specific "Endpoint List" windows</title>
|
|
<para>
|
|
Before the combined window described above was available, each of its
|
|
pages was shown as a separate window. Even though the combined window is
|
|
much more convenient to use, these separate windows are still
|
|
available. The main reason is that they might process faster for
|
|
very large capture files. However, as the functionality is exactly the
|
|
same as in the combined window, they won't be discussed in detail here.
|
|
</para>
|
|
</section>
|
|
</section>
|
|
|
|
<section id="ChStatIOGraphs">
|
|
<title>The "IO Graphs" window</title>
|
|
<para>
|
|
User configurable graph of the captured network packets.
|
|
</para>
|
|
<para>
|
|
You can define up to five differently colored graphs.
|
|
</para>
|
|
|
|
<figure><title>The "IO Graphs" window</title>
|
|
<graphic entityref="WiresharkStatsIOGraphs" format="PNG"/>
|
|
</figure>
|
|
|
|
<para>
|
|
The user can configure the following things:
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para><command>Graphs</command>
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para>
|
|
<command>Graph 1-5</command>: enable the specific graph 1-5 (only graph 1 is enabled
|
|
by default)
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>Color</command>: the color of the graph (cannot be changed)
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>Filter</command>: a display filter for this graph (only the
|
|
packets that pass this filter will be taken into account for this graph)
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>Style</command>: the style of the graph (Line/Impulse/FBar/Dot)
|
|
</para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
</para>
|
|
</listitem>
|
|
|
|
<listitem>
|
|
<para><command>X Axis</command>
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para>
|
|
<command>Tick interval</command>: an interval in x direction lasts
|
|
(10/1 minutes or 10/1/0.1/0.01/0.001 seconds)
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>Pixels per tick</command>: use 10/5/2/1 pixels per tick interval
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>View as time of day</command>: option to view x direction labels
|
|
as time of day instead of seconds or minutes since beginning of capture
|
|
</para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
</para>
|
|
</listitem>
|
|
|
|
<listitem>
|
|
<para><command>Y Axis</command>
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para>
|
|
<command>Unit</command>: the unit for the y direction (Packets/Tick,
|
|
Bytes/Tick, Bits/Tick, Advanced...) [XXX - describe the Advanced feature.]
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
<command>Scale</command>: the scale for the y unit
|
|
(Logarithmic,Auto,10,20,50,100,200,500,...)
|
|
</para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
</para>
|
|
</listitem>
|
|
|
|
</itemizedlist>
|
|
</para>
|
|
<para>
|
|
The <command>save</command> button will save the currently displayed
|
|
portion of the graph as one of various file formats. The save feature
|
|
is only available when using GTK version 2.6 or higher (the latest
|
|
Windows versions comply with this requirement) and Wireshark version
|
|
0.99.7 or higher.
|
|
</para>
|
|
<para>
|
|
The <command>copy</command> button will copy values from selected
|
|
graphs to the clipboard in CSV (Comma Separated Values) format.
|
|
The copy feature is only available in Wireshark version 0.99.8 or higher.
|
|
</para>
|
|
<tip><title>Tip!</title>
|
|
<para>
|
|
Click in the graph to select the first package in the selected interval.
|
|
</para>
|
|
</tip>
|
|
</section>
|
|
|
|
<section id="ChStatCompareCaptureFiles">
|
|
<title>Compare two capture files</title>
|
|
<para>
|
|
Compare two capture files.
|
|
</para>
|
|
</section>
|
|
|
|
<section id="ChStatWLANTraffic">
|
|
<title>WLAN Traffic Statistics</title>
|
|
<para>
|
|
Statistics of the captured WLAN traffic. This window will summarize the
|
|
wireless network traffic found in the capture. Probe requests will be
|
|
merged into an existing network if the SSID matches.
|
|
</para>
|
|
|
|
<figure><title>The "WLAN Traffic Statistics" window</title>
|
|
<graphic entityref="WiresharkStatsWLANTraffic" format="PNG"/>
|
|
</figure>
|
|
|
|
<para>
|
|
Each row in the list shows the statistical values for exactly one wireless network.
|
|
</para>
|
|
<para>
|
|
<command>Name resolution</command> will be done if selected in the window
|
|
and if it is active for the MAC layer.
|
|
</para>
|
|
<para>
|
|
<command>Only show existing networks</command> will exclude probe requests
|
|
with a SSID not matching any network from the list.
|
|
</para>
|
|
<para>
|
|
The <command>copy</command> button will copy the list values to the
|
|
clipboard in CSV (Comma Separated Values) format.
|
|
</para>
|
|
<tip><title>Tip!</title>
|
|
<para>
|
|
This window will be updated frequently, so it will be useful, even if
|
|
you open it before (or while) you are doing a live capture.
|
|
</para>
|
|
</tip>
|
|
</section>
|
|
|
|
<section id="ChStatLTEMACTraffic">
|
|
<title>LTE MAC Traffic Statistics</title>
|
|
<para>
|
|
Statistics of the captured LTE MAC traffic. This window will summarize the
|
|
LTE MAC traffic found in the capture.
|
|
</para>
|
|
|
|
<figure><title>The "LTE MAC Traffic Statistics" window</title>
|
|
<graphic entityref="WiresharkStatsLTEMACTraffic" format="PNG"/>
|
|
</figure>
|
|
|
|
<para>
|
|
The top pane shows statistics for common channels.
|
|
Each row in the middle pane shows statistical highlights for exactly one UE/C-RNTI.
|
|
In the lower pane, you can see the for the currently selected UE/C-RNTI
|
|
the traffic broken down by individual channel.
|
|
</para>
|
|
</section>
|
|
|
|
<section id="ChStatSRT">
|
|
<title>Service Response Time</title>
|
|
<para>
|
|
The service response time is the time between a request and the
|
|
corresponding response. This information is available for many protocols.
|
|
</para>
|
|
<para>
|
|
Service response time statistics are currently available for the following
|
|
protocols:
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para><command>DCE-RPC</command></para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>Fibre Channel</command></para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>H.225 RAS</command></para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>LDAP</command></para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>LTE MAC</command></para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>MGCP</command></para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>ONC-RPC</command></para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><command>SMB</command></para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
As an example, the DCE-RPC service response time is described in more
|
|
detail.
|
|
<note><title>Note!</title>
|
|
<para>
|
|
The other Service Response Time windows will work the same way (or only
|
|
slightly different) compared to the following description.
|
|
</para>
|
|
</note>
|
|
</para>
|
|
<section id="ChStatSRTDceRpc">
|
|
<title>The "Service Response Time DCE-RPC" window</title>
|
|
<para>
|
|
The service response time of DCE-RPC is the time between the request and
|
|
the corresponding response.
|
|
</para>
|
|
<para>
|
|
First of all, you have to select the DCE-RPC interface:
|
|
</para>
|
|
<figure><title>The "Compute DCE-RPC statistics" window</title>
|
|
<graphic entityref="WiresharkStatsSrtDcerpcFilter" format="PNG"/>
|
|
</figure>
|
|
<para>
|
|
You can optionally set a display filter, to reduce the amount of packets.
|
|
</para>
|
|
<figure><title>The "DCE-RPC Statistic for ..." window</title>
|
|
<graphic entityref="WiresharkStatsSrtDcerpc" format="PNG"/>
|
|
</figure>
|
|
<para>
|
|
Each row corresponds to a method of the interface selected (so the EPM
|
|
interface in version 3 has 7 methods). For each
|
|
method the number of calls, and the statistics of the SRT time is
|
|
calculated.
|
|
</para>
|
|
</section>
|
|
</section>
|
|
|
|
<section id="ChStatXXX">
|
|
<title>The protocol specific statistics windows</title>
|
|
<para>
|
|
The protocol specific statistics windows display detailed information
|
|
of specific protocols and might be described in a later
|
|
version of this document.
|
|
</para>
|
|
<para>
|
|
Some of these statistics are described at the
|
|
<ulink url="&WiresharkWikiPage;/Statistics"/> pages.
|
|
</para>
|
|
</section>
|
|
|
|
</chapter>
|
|
<!-- End of WSUG Chapter Statistics -->
|
|
|