Launching tomcat with additional VM parameters

Hi ,

I am wondering how to add additional JVM parameters during tomcat startup(Catalina.sh?)
I currently need to provide the following options :

-Xms128M -Xmx512M -Dvtprop=/Users/sanjayraju/vtimsd/runtime/snapagent.ini -Dsun.net.inetaddr.ttl=1

thanks
Sanjay

I use the JAVA_OPTS environment variable in catalina.bat - for example, here is part of the line in my catalina.bat

set JAVA_OPTS=-Djavax.net.ssl.trustStore="c

ata\Scrutiny\keystore\clientkeys"

Here is the comment from catalina.bat documenting the use
rem JAVA_OPTS (Optional) Java runtime options used when the "start",
rem "stop", or "run" command is executed.
Bill