[B.A.T.M.A.N.] VIS labels

Hi

I would like to know where I can find information about the data that the VIS Server gives. More precisely the label on each link and its relation with the link quality that B.A.T.M.A.N. gives.

Also, which is the general criteria to know from which number, that the output shows, is considered a good, regular, bad or "imposible to use" link?

An example: digraph topology { "5.174.37.225" -> "5.224.160.202"[label="2.13"] "5.174.117.226" -> "5.174.37.225"[label="5.00"] "5.174.117.226" -> "0.0.0.0/0.0.0.0"[label="HNA"] "5.224.160.202" -> "5.174.37.225"[label="1.28"] "5.224.160.202" -> "0.0.0.0/0.0.0.0"[label="HNA"] }

Thanks in advance.