Traffic Management for the Available Bit Rate (ABR) Service in ...

eing divided into eight non-overlapping regions as shown in Figure 5.25(b). The
new regions are described by the conditions:
Region 1a: s>x>0 and y s and U(1+ ) x+y U(1; ) and y>(1+ )x
Region 1b: s>xand (1 + )x y s
Region 2: y s and x s and U(1 + ) x + y
Region 3a: s>y>0andx s and U(1+ ) x+y U(1; ) and yy (1 ; )x and x s
Region 4a: y (1 + )x. The new point is given by:
(x0�y0 x(1+ )
)=( � z
y(1; )
). Hence,
z
y0 y
= 0 x x
142
1 ;
1+
(5.7)