Question: Can you please help me to get the full output ising the top command? Is there anyway to extract the full the details without any restrictions on number of columns?
The best way is to first find the process ID (PID) of the pppd command so typically
ps ax |grep pppd
Then look under /proc, so if the PID is 10023
cat -v /proc/10023/cmdline
Though you will loose all the spaces between the options they will be shown as ^@ but it won't be truncated.
Basically the likes of top and ps process the contents of /proc and pretty print it for you. The cmdline files is the command line as a series of null terminated strings so the -v option to cat to escape unprintable characters is needed.
Most of these systems are running with BusyBox so you will probably need to replace cat with catv which does the same thing as "cat -v". I am also unsure off the top of my head what options the BusyBox version of ps supports.
All that said, that looks like a complete command line you have put in there. Might be worth checking the directory /etc/ppp/options, and the file /root/.ppprc for any additional options not specified on the command line.