Congested
node marks all RT-packets with CE until node realizes sufficient
decrease in arriving BW.
DST nodes
having (d > d1) will issue
regulate message.
Other DST
nodes wait for time T. If packets keep arriving with CE,
nodes having (d > d2) will
regulate.
After another time T, if packets keep
arriving with CE, nodes having (d
> d3)
will regulate.
Values (di) are network
constants, and (di> di+1).