[lacnog] Duda real capacidad direccionamiento IPv4

Carlos A. Afonso ca en cafonso.ca
Jue Nov 13 19:48:40 BRST 2014


La tabla muestra que si el espacio de números fuera 2^64 tendríamos
18,446,744,073,709,600,000 (18.4 quintillones) de direcciones.

¿Ya preocuparía a las hormigas?

[]s fraternos

--c.a.

On 11/13/2014 07:24 PM, Jaime Olmos wrote:
> Haciendo un ejercicio en una tabla de cálculos las direcciones de IPv6
> (2^128) es de  39 dígitos decimales o 36 dígitos después del 340, como
> se muestra a continuación:
> 
> 340,282,366,920,938,000,000,000,000,000,000,000,000
> 
> También, 340 se puede expresar en escala corta como undecillones o
> escala larga como 340 sextillones y en escala binaria como 340 epicbits.
> 
> 
> 
> bits 	combinaciones 	Unidad 	10^x 	Escala corta 	Escala larga
> 0 	1 	bit 	  	 
> 1 	2
> 2 	4
> 3 	8
> 4 	16
> 5 	32
> 6 	64
> 7 	128
> 8 	256
> 9 	512
> 10 	1,024 	Kilobits 	3 	Mil/Millar
> 11 	2,048
> 12 	4,096
> 13 	8,192
> 14 	16,384
> 15 	32,768
> 16 	65,536
> 17 	131,072
> 18 	262,144
> 19 	524,288
> 20 	1,048,576 	Megabits 	6 	Millón
> 21 	2,097,152
> 22 	4,194,304
> 23 	8,388,608
> 24 	16,777,216
> 25 	33,554,432
> 26 	67,108,864
> 27 	134,217,728
> 28 	268,435,456
> 29 	536,870,912
> 30 	1,073,741,824 	Gigabits 	9 	Billón 	Mil millones/Millardo
> 31 	2,147,483,648
> 32 	4,294,967,296
> 33 	8,589,934,592
> 34 	17,179,869,184
> 35 	34,359,738,368
> 36 	68,719,476,736
> 37 	137,438,953,472
> 38 	274,877,906,944
> 39 	549,755,813,888
> 40 	1,099,511,627,776 	Terabits 	12 	Trillón 	Billón
> 41 	2,199,023,255,552
> 42 	4,398,046,511,104
> 43 	8,796,093,022,208
> 44 	17,592,186,044,416
> 45 	35,184,372,088,832
> 46 	70,368,744,177,664
> 47 	140,737,488,355,328
> 48 	281,474,976,710,656
> 49 	562,949,953,421,312
> 50 	1,125,899,906,842,620 	Petabits 	15 	Cuatrillón 	Mil billones
> 51 	2,251,799,813,685,250
> 52 	4,503,599,627,370,500
> 53 	9,007,199,254,740,990
> 54 	18,014,398,509,482,000
> 55 	36,028,797,018,964,000
> 56 	72,057,594,037,927,900
> 57 	144,115,188,075,856,000
> 58 	288,230,376,151,712,000
> 59 	576,460,752,303,423,000
> 60 	1,152,921,504,606,850,000 	Exabits 	18 	Quintillón 	Trillón
> 61 	2,305,843,009,213,690,000
> 62 	4,611,686,018,427,390,000
> 63 	9,223,372,036,854,780,000
> 64 	18,446,744,073,709,600,000
> 65 	36,893,488,147,419,100,000
> 66 	73,786,976,294,838,200,000
> 67 	147,573,952,589,676,000,000
> 68 	295,147,905,179,353,000,000
> 69 	590,295,810,358,706,000,000
> 70 	1,180,591,620,717,410,000,000 	Zettabits 	21 	Sextillón 	Mil trillones
> 71 	2,361,183,241,434,820,000,000
> 72 	4,722,366,482,869,650,000,000
> 73 	9,444,732,965,739,290,000,000
> 74 	18,889,465,931,478,600,000,000
> 75 	37,778,931,862,957,200,000,000
> 76 	75,557,863,725,914,300,000,000
> 77 	151,115,727,451,829,000,000,000
> 78 	302,231,454,903,657,000,000,000
> 79 	604,462,909,807,315,000,000,000
> 80 	1,208,925,819,614,630,000,000,000 	Yotabits 	24 	Septillón 	Cuatrillón
> 81 	2,417,851,639,229,260,000,000,000
> 82 	4,835,703,278,458,520,000,000,000
> 83 	9,671,406,556,917,030,000,000,000
> 84 	19,342,813,113,834,100,000,000,000
> 85 	38,685,626,227,668,100,000,000,000
> 86 	77,371,252,455,336,300,000,000,000
> 87 	154,742,504,910,673,000,000,000,000
> 88 	309,485,009,821,345,000,000,000,000
> 89 	618,970,019,642,690,000,000,000,000
> 90 	1,237,940,039,285,380,000,000,000,000 	Brontobits 	27 	Octillón 	Mil
> cuatrillones
> 91 	2,475,880,078,570,760,000,000,000,000
> 92 	4,951,760,157,141,520,000,000,000,000
> 93 	9,903,520,314,283,040,000,000,000,000
> 94 	19,807,040,628,566,100,000,000,000,000
> 95 	39,614,081,257,132,200,000,000,000,000
> 96 	79,228,162,514,264,300,000,000,000,000
> 97 	158,456,325,028,529,000,000,000,000,000
> 98 	316,912,650,057,057,000,000,000,000,000
> 99 	633,825,300,114,115,000,000,000,000,000
> 100 	1,267,650,600,228,230,000,000,000,000,000 	Geopbits 	30 	Nonillón
> Quintillón
> 101 	2,535,301,200,456,460,000,000,000,000,000
> 102 	5,070,602,400,912,920,000,000,000,000,000
> 103 	10,141,204,801,825,800,000,000,000,000,000
> 104 	20,282,409,603,651,700,000,000,000,000,000
> 105 	40,564,819,207,303,300,000,000,000,000,000
> 106 	81,129,638,414,606,700,000,000,000,000,000
> 107 	162,259,276,829,213,000,000,000,000,000,000
> 108 	324,518,553,658,427,000,000,000,000,000,000
> 109 	649,037,107,316,853,000,000,000,000,000,000
> 110 	1,298,074,214,633,710,000,000,000,000,000,000 	Saganbits 	33
> Decillón 	Mil quintillones
> 111 	2,596,148,429,267,410,000,000,000,000,000,000
> 112 	5,192,296,858,534,830,000,000,000,000,000,000
> 113 	10,384,593,717,069,700,000,000,000,000,000,000
> 114 	20,769,187,434,139,300,000,000,000,000,000,000
> 115 	41,538,374,868,278,600,000,000,000,000,000,000
> 116 	83,076,749,736,557,200,000,000,000,000,000,000
> 117 	166,153,499,473,114,000,000,000,000,000,000,000
> 118 	332,306,998,946,229,000,000,000,000,000,000,000
> 119 	664,613,997,892,458,000,000,000,000,000,000,000
> 120 	1,329,227,995,784,920,000,000,000,000,000,000,000 	Epicbits 	36
> Undecillón 	Sextillón
> 121 	2,658,455,991,569,830,000,000,000,000,000,000,000
> 122 	5,316,911,983,139,660,000,000,000,000,000,000,000
> 123 	10,633,823,966,279,300,000,000,000,000,000,000,000
> 124 	21,267,647,932,558,700,000,000,000,000,000,000,000
> 125 	42,535,295,865,117,300,000,000,000,000,000,000,000
> 126 	85,070,591,730,234,600,000,000,000,000,000,000,000
> 127 	170,141,183,460,469,000,000,000,000,000,000,000,000
> 128 	*340,282,366,920,938,000,000,000,000,000,000,000,000*
> 
> Saludos,
> 
> Jaime Olmos
> 
> *NOC UDG tel. (33) 31342221 ext. 12327*
> 
> http://www.ipv6.udg.mx
> 
> 
> 
> 
> On 13/11/14 2:32, "Fernando Gont" <fgont en si6networks.com
> <mailto:fgont en si6networks.com>> wrote:
> 
>     On 11/12/2014 05:41 AM, Carlos A. Afonso wrote:
> 
>         OK, o sea, solo restarían como 150 undecilliones de direcciones
>         ipv6... :)
> 
> 
>     No tengo ni idea cuanto es eso en numeros..
> 
>     *Si* es significativo que a la practica la cantidad de sistemas
>     direccionables está mas bien en el orden de 2^9 * 2^64 que de 2^128.
> 
>     Y en cualquiera de los casos, tampoco se cuanta utilidad tendría ;-)
>     -- 
>     Fernando Gont
>     SI6 Networks
>     e-mail: fgont en si6networks.com <mailto:fgont en si6networks.com>
>     PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492
> 
> 
> 
> 
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