content tracking

Looking at this post I guess I can do the below (simple basic example)

Question 1) but what would I have to (or should I) modify it work with a STREAM profile ?

Question 2) I assume that this does NOT impact the basic built in statistics ?

Question 3) When I make a new stats profile does it basically just build a "rrd" infrastructure ?

Question 4) there was alot of discussion in this thread BUT no single best practice was identified "hoolio" could you comment on this ?

As Scott said (above) I assume I have to first define a profile (Profile->Other-Statistics) and create a new named profile "content_and_len", then check "custum) with following entries:

Html

Html_len

Images

Images_len

Css

Css_len

Other

Other_len

Then associate this Statistics Profile to the virtual server.

Next I would have to the following iRule and then also associate that with the same virtual server, this iRULE will also tests for unset or missing length.

when HTTP_RESPONSE { 
  switch -glob [HTTP::header "Content-type"] { 
    "text/html" { 
      STATS::incr "ContentType" "Html"  
      if { [HTTP::header exists "Content-Length"] } { 
        STATS::incr "ContentType" "Html_len" [HTTP::payload length] 
      }
    } 
    "image/*" { 
      STATS::incr "ContentType" "Images"  
      if { [HTTP::header exists "Content-Length"] } { 
        STATS::incr "ContentType" "Images_len" [HTTP::payload length] 
      }
    }

    "text/css" { 
      STATS::incr "ContentType" "Css"  
      if { [HTTP::header exists "Content-Length"] } { 
        STATS::incr "ContentType" "Css_len" [HTTP::payload length] 
      }
    } 
    "default" { 
      STATS::incr "ContentType" "Other" 
      if { [HTTP::header exists "Content-Length"] } { 
        STATS::incr "ContentType" "Other_len" [HTTP::payload length] 
      }
    } 
  }
} 

To view the results, I would then go to Statistics -> Local Traffic -> Profiles/Statistics

I have not yet pumped any traffic yet but I do see the zero counts.