MATE User Manual
MATE User Manual
Copyright  2001 Ericsson Radio Systems
1
1
CONTENTS
1
CONTENTS ....................................................................................................................................................2
2
INTRODUCTION.........................................................................................................................................3
3
STARTING MATE SYSTEM....................................................................................................................4
3.1
4
STARTING THE ENGINE AND THE GUI...................................................................................................4
THE MAIN GUI.............................................................................................................................................5
4.1
CREATE A NEW FILTER ...........................................................................................................................6
4.1.1
Limitation........................................................................................................................................6
4.1.2
Wildcard options............................................................................................................................6
4.2
FILTER LIST PANEL ..................................................................................................................................7
4.2.1
Priority.............................................................................................................................................7
4.2.2
Enabled/Disabled...........................................................................................................................7
4.2.3
Remove Filter..................................................................................................................................7
4.3
SAVE CURRENT FILTERS..........................................................................................................................7
4.4
LOAD A SAVED FILTER LIST ....................................................................................................................8
4.5
REMOVE FILTER.......................................................................................................................................8
4.6
REMOVE A LL FILTERS.............................................................................................................................8
4.7
SETTINGS PANEL ......................................................................................................................................9
4.7.1
Apply ................................................................................................................................................9
4.7.2
BER...................................................................................................................................................9
4.7.3
Interrupt...........................................................................................................................................9
4.7.4
Clear.................................................................................................................................................9
4.7.5
Enable/Disable Button..................................................................................................................9
4.8
IMPAIRMENTS.........................................................................................................................................10
4.8.1
Random Loss................................................................................................................................ 10
4.8.2
Manual Loss................................................................................................................................. 10
4.8.3
Data Rate...................................................................................................................................... 10
4.8.4
Latency.......................................................................................................................................... 10
4.8.5
Bit Error Rate .............................................................................................................................. 10
4.9
INTERRUPT ..............................................................................................................................................11
4.9.1
Buffered Interrupt ....................................................................................................................... 11
4.9.2
Non Buffered Interrupt............................................................................................................... 11
4.10 FILTER PRESENTATION WINDOW .........................................................................................................11
4.10.1
Close.............................................................................................................................................. 11
4.10.2
Scaling the Graph....................................................................................................................... 11
4.10.3
Haircross ...................................................................................................................................... 11
4.10.4
Filter data..................................................................................................................................... 12
4.10.5
Settings.......................................................................................................................................... 12
4.11 PERFORMANCE .......................................................................................................................................12
5
CLOSE MATE SYSTEM......................................................................................................................... 13
5.1
5.2
6
CLOSE THE ENGINE ................................................................................................................................13
CLOSE THE GUI......................................................................................................................................13
ERROR HANDLING................................................................................................................................ 13
6.1
6.2
MATE ENGINE LOST .............................................................................................................................13
FAILURE WHEN CREATING FILTERS.....................................................................................................13
Copyright  2001 Ericsson Radio Systems
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2
INTRODUCTION
MATE system consists of an engine and a GUI. All packets that
pass through the engine can be manipulated in some way. The
engine works with filters defined in the GUI to control the IPtraffic. A filter holds data such as source and destination IPaddresses and what kind of protocol type to filter on (UDP, TCP,
ICMP or all). The manipulations made on the IP-traffic are
decided by the impairment parameters of the filter.
MS
192.168.1.130
Eth0
MATE
Server
192.168.2.130
192.168.1.30
Eth1
192.168.2.30
Eth2
Eth0
The GUI defines filters and sets its impairments by commands to
the engine. In return the GUI receives statistic data for all filters
created in the engine.
Install the system as stated in the Installation manual.
Copyright  2001 Ericsson Radio Systems
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3.1
STARTING MATE SYSTEM
Starting the engine and the GUI
•
•
•
Log in as root
Write mateengine at prompt, and press enter.
Write mategui at prompt, and press enter.
If the GUI should run on a different computer than the engine,
the IP-address and ports to and from the engine must be added as
argument to the GUI. First the IP-address to the engine then the
port that the engine receives on and last the port that the engine
sends on.
Ex. >mategui 10.0.4.17 33331 33333
If the GUI is to be started on a Windows 98/NT based PC do the
following steps:
• Open the explorer and open directory: C:\mate\gui\
• Double click on the file mategui.bat
Copyright  2001 Ericsson Radio Systems
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THE MAIN GUI
The Main GUI consists of a frame with three panels: the filter
list panel, the settings panel and the presentation window panel.
Filter List Panel
Presentation Window Panel
SettingsPanel
Settings
Panel
In the main frame a toolbar is included. The toolbar consists of
five buttons: save, open, new, remove and help.
Save
Open
New
Remove Help
When starting the application the main GUI appears. All panels
are empty and the buttons in the settings panel are disabled. The
user has two options, start a new filter or load a saved filter list.
Copyright  2001 Ericsson Radio Systems
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4.1
Create a new Filter
Creating a new filter is done by either choosing new from the
file menu, by pressing the new button in the toolbar, or by
pressing Ctrl-N. Then a Create filter dialog appears where the
user fills in the filter specific data. This data can not be modified
later.
When the GUI gets the response from the engine a filter
presentation window (See section filter presentation window) is
shown in the presentation window panel. The Filter is listed in
the filter list panel and filter impairment parameters can be
changed in the settings panel. If the GUI does not get an
acknowledgement from the engine within five seconds, the
attempt is timed out. If the attempt is timed out an error message
will be printed in the application log window. See section 7.2.
4.1.1 Limitation
The MATE engine
handles a maximum of
ten filters. If the user
tries to create an 11:th
filter an error message
will be shown.
4.1.2 Wildcard options
When you want to cover all addresses or ports, the wildcard “*”
should be used. An IP-address can also have a wildcard like:
127.*.*.1.
If the filter should cover all protocol types, choose the “All”
alternative in the Protocol Type combobox.
Copyright  2001 Ericsson Radio Systems
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4.2
Filter list panel
The filter list shows all filters,
enabled and disabled, in the
engine. By selecting a filter in
the list it becomes active in the
settings panel.
If the filter presentation window
is not visible, you have to
double click on the filter in the
list and the presentation window
will appear.
4.2.1 Priority
The order of the filters in the list shows the priority of the filters.
The engine looks for the first matching filter in order from top to
bottom of the list. To change filter priority drag the selected
filter to a new position in the filter list.
4.2.2 Enabled/Disabled
The red/green mark indicates if the filter is enabled (green) or
disabled (red).
4.2.3 Remove Filter
If you want to remove a filter just select filter in the list and
press the remove button in the toolbar.
4.3
Save current filters
Choose Save or Save as in the file menu or press the Save
button in the toolbar. All filters in the filter list will be saved,
with their current impairment settings.
Copyright  2001 Ericsson Radio Systems
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4.4
Load a saved filter list
Choose Open in file menu or press the Open button in the
toolbar and select the saved file in the Load file window. The
following dialog appears:
If the operator selects Append all filters in the saved file will be
sent to the engine and added to the filter list. If the amount of
existing filters and loaded filters is greater than ten, the loading
is cancelled with the 10:th filter.
With the Replace button all existing filters is deleted and
replaced by the loaded filter list.
If the loading fails an error message will be printed in the
application log window, see section 7.2.
4.5
Remove Filter
Select the filter that you want to remove in the filter list, then
press the Remove button in the toolbar or select Remove in the
file menu. If you press ok in the information window the filter
will be removed from the engine and the GUI.
4.6
Remove All Filters
To remove all filters in the engine, select Remove All in the file
menu.
Copyright  2001 Ericsson Radio Systems
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4.7
Settings panel
With the settings
panel you can make
operations on every
active filter in the
engine. The settings
are made on the filter
that is marked in the
filter list panel. The
changes are updated
in the presentation
window.
4.7.1 Apply
When the apply button is pressed all values in the impairment
fields Random loss, Loss 1 of, Data rate and Latency are
sent to the selected filter in the engine. All impairments are
described in section “Impairments”.
4.7.2 BER
With the BER combobox the impairment Bit Error Rate is
changed. Everytime a new value is selected in the combobox the
new impairment is sent to the engine.
4.7.3 Interrupt
With the Interrupt radio button On the IP-traffic through the
filter is interrupted, see section 5.8.
4.7.4 Clear
The fields accumulated volume, passed packets and lost packets
are cleared in the filter presentation window.
4.7.5 Enable/Disable Button
The Enable/Disable button shows green if the selected filter is
enabled and red if the filter is disabled. To change state, press
the Enable/Disable button. When the filter is disabled the
impairments are saved and any packets in the queue are also
saved, but no packets are manipulated in the filter, as if the filter
was not defined.
Copyright  2001 Ericsson Radio Systems
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4.8
Impairments
The GUI supports six
types of impairments.
The impairments are
controlled from the
setting panel, which is
connected to the filter
marked in the filter list.
Changes in the
impairment fields
Random loss, Manual
loss, Data rate and
Latency is activated on
the filter when the
apply button is pressed.
4.8.1 Random Loss
The random loss impairment is specified in percent. The engine
randomly throws packets to reach the value given in percent.
4.8.2 Manual Loss
The engine throws each packets of the given interval set in the
impairment field Loss 1 of. Zero means no packets are thrown.
Random loss overrides Manual loss if both Random loss and
Manual loss is set to a value greater than zero.
4.8.3 Data Rate
Sets the maximum data rate through the filter. Asterisk means no
limitation.
4.8.4 Latency
Sets the delay on each packet through the filter. Latency can be
set independent of Data rate.
4.8.5 Bit Error Rate
Sets the Bit error rate from 1E-2 to 1E-10 or no Bit error rate at
all. The BER impairment is sent to the engine instantly after it is
changed.
Copyright  2001 Ericsson Radio Systems
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4.9
Interrupt
4.9.1 Buffered Interrupt
If the checkbox Empty queue on interrupt is not checked all
arriving packets will be buffered in the filter queue until the
buffer is full. When the interrupt is deactivated the packets in the
queue are sent as fast as possible due to current impairments. If
the queue is full (50 packets), all incoming packets are thrown.
4.9.2 Non Buffered Interrupt
An interrupt with the checkbox Empty queue on interrupt
checked will stop all arriving packets to the actual filter.
4.10 Filter presentation window
Each filter will have its
own presentation
window. In the
presentation window all
settings will be shown.
The graph shows the
throughput in kbits in
the link between the
source and destination.
There is ten seconds
between the vertical
lines.
4.10.1 Close
Closes the presentation
window. The window
becomes visible again by
a double click on the
filter in the filter list. See
section Performance.
4.10.2 Scaling the Graph
Rescaling is done by pressing the up and down scale buttons at
the right of the graph. When the max value in the graph is below
100 the scaling is made in steps of ten otherwise in steps of 100.
4.10.3 Haircross
The haircross in the graph helps the user to keep track of the
graph value.
Copyright  2001 Ericsson Radio Systems
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4.10.4 Filter data
The graph shows the history of the throughput value sent by the
filter each second. In the following five fields different live data
is presented.
• Throughput shows the actual bit data rate.
• Accumulated volume data shows how much data has
passed through the filter since start or last filter clear, see
Settings panel.
• The Passed field shows how many packets that passed
through the filter, since start or last filter clear, see Settings
panel.
• The loss field shows the amount of lost packets in number
and in percent of total amount of sent packets.
• The in queue field shows the amount of packets in the
engine queue for this particular filter.
4.10.5 Settings
When a filter presentation window is marked it is connected with
the settings panel, and updates in impairments are shown in the
SETTINGS section of the window. The IP-addresses, ports and
Protocol type fields are never changed. The field Packet loss,
Manual loss, Data rate, Latency and Bit Error shows the current
impairment settings for the filter.
4.11 Performance
In order to have a good performance in the GUI the presentation
panel should never have more than four presentation windows
visible, be sure to close presentation windows that are not
important for your tests.
Copyright  2001 Ericsson Radio Systems
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5
5.1
CLOSE MATE SYSTEM
Close the engine
Press Ctrl-c in the X-terminal where the engine was started.
If the engine is started as a background process write kill –
INT <process-ID> at the prompt.
5.2
Close the GUI
Select Exit in the file menu.
6
6.1
ERROR HANDLING
MATE engine lost
If the MATE GUI
looses contact with the
MATE engine a dialog
with the text “The
engine is lost!”
appears. Follow this
steps:
1. Save filters on file and close GUI and engine.
2. Restart the MATE system
3. Load filters from saved file.
6.2
Failure when creating filters
If the GUI does not receive any reply on its request to create a
new filter a dialogue with the text
“No contact with the engine!” appears. This could be caused
by:
• The engine is stopped.
• The engine is not configured with the correct IP-address and
ports to the GUI. See installation manual.
• The GUI is not started with correct IP-address and ports to
the engine. See installation manual.
Copyright  2001 Ericsson Radio Systems
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