Installation of older version of rsyslog

Hi,

I am trying to downgrade the version of rsyslog to the older version (i.e)

and when i issue the below command to check the packages i dont see the required package (i.e)

and when i try to install it is complaining about package not found.

Please advise on how to install the required older version.

Below is the uname output

Did you try apt-get remove on the existing version?