Telnet poller fails with long command, over about 50 character depending agent hostname.
e.g. /usr/bin/expr `sar -r 1 1 | /usr/bin/tail -1 | /usr/bin/awk '

'` * `/usr/bin/pagesize`

Because Telnet poller assumes the virtual screen size 80x25 characters. But with long command the number of characters in a line is over and Telnet poller does not bechave well.
So, attached patches expand the virtual screen size to 1280x120. In many case, it works well.