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

Table 1

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	134	279%	48	144	300%	52.8	157.4
16	480	528	110%	384	500	130%	452.0	552.8
32	2 688	2 240	83%	2 240	2 016	90%	2 508.8	2 240.0
64	9 600	6 016	63%	7 680	7 488	98%	8 640.0	8 089.6
128	23 552	21 120	90%	19 712	24 320	123%	22 067.2	26432.0
256	85 504	59 392	69%	69 632	70 400	101%	78 182.4	76 339.2
512	280 576	207 872	74%	248 832	233 472	94%	276 889.6	254 259.2
1 024	948 224	587 776	62%	819 200	678 912	83%	914 022.4	737 689.6
2 048	2 465 792	1 974 272	80%	2 207 744	2 179 072	99%	2 454 323.2	2 376 499.2
4 096	8 413 184	5 488 640	65%	7 372 800	6 205 440	84%	8 214 118.4	6 754 304.0
8 192	24 018 944	18 391 040	77%	21 938 176	20 054 016	91%	24 340 070.4	21893 120.0
16 384	79 003 648	51 216 384	65%	70 647 808	57 098 240	81%	78 548 172.8	62 219 878.4