The nam trace for link states is given by:
l -t time -s src -d dst -S state -c color -o orientation -r bw -D delay
where <state> and <color> indicate the same attributes
(and the same format) as described above in the node state traces.
Flag -o gives the link orientation (angle between link and
the horizon). Valid orientation values are:
Flags -r and -D give the bandwidth (in Mb) and delay (in ms), respectively. An example of a link trace is:
l -t * -s 0 -d 1 -S UP -r 1500000 -D 0.01 -c black -o right