IxLoad
offer some specific option to test that data transmission on your network is
not affected unauthorized changes to the content or errors through the Data
Integrity checks.
We can perform data integrity checks on HTTP traffic, mail
traffic ( POP3, IMAP, data center traffic ( CIFS, SMB, iSCSI).
When Data Integrity Check is enabled IxLoad
compare the data receive from the server with the actual expected data. In case
that the received data does not match with the one sent it displays an error
message in the EventViewer pane from the main window. Nothing is displayed in
the EventViewer windows if everything works fine.
The method used by
IxLoad to perform data integrity checks is by using Byte by Byte matching of
the synthetic generated data. Unfortunately we cannot perform data integrity
checks on custom real-life files or mails. The data transmitted has to be generated by IxLoad using
the Synthetic Patter Generator.
The procedure used
to enable Data integrity checks on the mail protocols is the following
1. On client side enable Data
integrity check
The option is available only
for a limited number of commands
2. On server side you need to make sure
that the mails used by your test have the option Enable
Synthetic Pattern Generation checked:
Please take in consideration that when using Data Integrity
check the performance of the protocols drops significantly. From experience I
can tell you that usually performance drops with 50% when this feature is
enabled only on one activity. If you have
more activities then it may be even less.
Currently we are
supporting Data Integrity check on the following mail protocols: POP3 and IMAP.
I will present bellow teho examples on
how to configure it on each one of them
Example1:
How to enable Data Integrity check on
POP3 traffic
On POP3 we can
perform integrity checks only on Get command
***** On POP3 Client activity add a Get command.
Enable Integrity
Check from the command settings
***** On POP3 Server side create a new mail message by using
synthetic pattern
Go to Server activity
main page, add a New Mail message
Set the new mail name as test.
Check the box next to Enable Synthetic Pattern Generation.
In case you get errors they will have the following format:
Example2:
How to enable Data Integrity Check on IMAP
traffic
On IMAP activity we can perform Integrity checks only on Get
mail command.
***** On the Client side add a Get mail command and check
the box next to Enable Data Integrity
***** On the Server side add a new message test , size 1024B
and enable Synthetic pattern generator as in the following screen:
In case that DI errors appears they will have the following
format: 
