Debug3 messages throw in my terminal

OS: HP-UX B.11.31 U ia64
shell : /sbin/sh

Messages like "debug3: Wrote 48 bytes for a total of 15837" are thrown in my terminal after each key stroke. If I try to type a command such message appears after each character I type. If I simply press enter messages like below appear.

pyxis:/var/adm/syslog# debug3: Wrote 48 bytes for a total of 15789

pyxis:/var/adm/syslog# debug3: Wrote 48 bytes for a total of 15837

pyxis:/var/adm/syslog# debug3: Wrote 48 bytes for a total of 15885

pyxis:/var/adm/syslog# debug3: Wrote 48 bytes for a total of 15933

pyxis:/var/adm/syslog# debug3: Wrote 48 bytes for a total of 15981

pyxis:/var/adm/syslog# debug3: Wrote 48 bytes for a total of 16029

This looks a lot like debug messages from ssh - those that appear if a few -v options are given upon connection.