Strict-Sense Nonblocking Conditions for the Multirate Switching Fabric for the Discrete Bandwidth Model

Table 3

The number of passive optical elements , active optical elements , and the normalized cost for a given capacity for different SSNB switching fabrics where , and .

banyan		%	banyan		%	banyan
8	48	42	88%	48	48	100%	52.8	52.2
16	128	96	75%	128	100	78%	140.8	109.6
32	1 152	704	61%	960	672	70%	1 075.2	742.4
64	3 456	2 432	70%	3 072	2 880	93%	3 417.6	3 123.2
128	10 752	8 192	76%	8 960	10 240	114%	10 035.2	11 059.2
256	32 256	26 624	83%	28 672	30 976	108%	31 897.6	33 638.4
512	116 736	81 920	70%	101 376	98 304	97%	113 049.6	106 496.0
1 024	358 400	247 808	69%	327 680	279 552	85%	363 520.0	304 332.8
2 048	1 073 152	786 432	73%	946 176	917 504	97%	1 053 491.2	996 147.2
4 096	3 301 376	2 375 680	72%	3 047 424	2 641 920	87%	3 377 561.6	2 879 488.0
8 192	10 190 848	7 340 032	72%	9 158 656	8 388 608	92%	10 177 740.8	9 122 611.2
16 384	31 424 512	21 594 112	69%	29 360 128	23 674 880	81%	32 502 579.2	25 834 291.2