Many 8080 port connection

[zhoubyte]

I install ispconfig3 in debian 6; I add a vhost,I found that.
tcp6 0 0 :::8080 :::* LISTEN 15640/apache2
tcp6 0 0 ::1:51980 ::1:8080 TIME_WAIT -
tcp6 0 0 ::1:51975 ::1:8080 TIME_WAIT -
tcp6 0 0 ::1:51981 ::1:8080 TIME_WAIT -
tcp6 0 0 ::1:51983 ::1:8080 TIME_WAIT -
tcp6 0 0 ::1:51977 ::1:8080 TIME_WAIT -
tcp6 0 0 ::1:51979 ::1:8080 TIME_WAIT -
tcp6 0 0 ::1:51978 ::1:8080 TIME_WAIT -
tcp6 0 0 ::1:51982 ::1:8080 TIME_WAIT -
tcp6 0 0 ::1:51976 ::1:8080 TIME_WAIT -
tcp6 0 0 ::1:51971 ::1:8080 TIME_WAIT -
who can tell me what is causing this?