I've added two files to my .bashrc:

alias sl-start="less /var/log/syslog|grep restart|cut -d ' ' -f3"
alias sl-stop="less /var/log/syslog|grep renewal|cut -d ' ' -f3"

Now, after I've got on-line, I can check how long it took.
Using my trusty LXterminal, I get...

knoppix@Microknoppix:~$ sl-stop; sl-start

So I think it's handy to resurrect these two capbilities;
they weren't in my standard issue Knoppix 6.4.4 LiveCD.