Network Fundementals

OSI Layer

Protocols

xDSL

xDSL connection	Data Rate (Max)
ADSL	8Mbps
ADSL2	12MBps
ADSL2+	24Mbps
VDSL	52Mbps
VDSL2(17a) VDSL2(30a)	100Mbps 200Mbps

CABLE

Cable Standards	DOCSIS Downstream	EuroDOCSIS Downstream	Upstream
DOCSIS1.x	38Mbps	50Mbps	9Mbps
DOCSIS2.0	38Mbps	50Mbps	27Mbps
DOCSIS3.0	38Mbpsxch	50Mbpsxch	27Mpbsxch

The highest DOCSIS 3.0 speeds for the number of bonded channels are listed in the table below.

Channel configuration		Downstream throughput		Upstream throughput
Number of downstream channels	Number of upstream channels	DOCSIS	EuroDOCSIS
4	4	171.52 (152) Mbit/s	222.48 (200) Mbit/s	122.88 (108) Mbit/s
8	4	343.04 (304) Mbit/s	444.96 (400) Mbit/s	122.88 (108) Mbit/s
16	4	686.08 (608) Mbit/s	889.92 (800) Mbit/s	122.88 (108) Mbit/s
24	8	1029.12 (912) Mbit/s	1334.88 (1200) Mbit/s	245.76 (216) Mbit/s

FIBER OPTIC vs xDSL

Wi-Fi

Protocol	Frequency @ BW	Data rate (Average)	Data Rate (Max)	Indoor range	Outdoor range
802.11a	5 GHz @ 20Mhz	23 Mbit/s	54 Mbit/s	~35 meters	~120 meters
802.11b	2.4 GHz @ 20Mhz	4 Mbit/s	11 Mbit/s	~35 meters	~140 meters
802.11g	2.4 GHz @ 20Mhz	19 Mbit/s	54 Mbit/s	~35 meters	~140 meters
802.11n	2.4 GHz / 5 GHz @ 20Mhz&40Mhz	39Mbps @ 20Mhz 80Mbps @ 40Mhz	67Mbps@20Mhz 150Mbs@40MHz 248 Mbit/s = 2x2 ant	~70 meters	~250 meters
802.11y	3.7 GHz	23 Mbit/s	54 Mbit/s	~500 meters	~5000 meters

DATA RATE for STREAMING

Encoding	Resolution	Max. Data Rate
MPEG2 streaming	HD	19Mbps
MPEG2 streaming	SD	4Mbps
H.264 streaming	HD	8Mpbs
H.264 streaming	SD	2Mbps

IP ADDRESSES ALLOCATION

Class	Start Address	End Address	Subnet Mask
Class A	0.0.0.0	127.255.255.255	255.0.0.0
Class B	128.0.0.0	191.255.255.255	255.255.0.0
Class C	192.0.0.0	223.255.255.255	255.255.255.0
Class D	224.0.0.0	239.255.255.255	255.255.255.0
Class E	240.0.0.0	255.255.255.255	255.255.255.0
Private address I	10.0.0.0	10.255.255.255
Private address II	172.16.0.0	172.31.255.255
Private address III	192.168.0.0	192.168.255.255