Session

DOCSIS 1.1 QoS

HFC http://www.cisco.com/warp/public/cc/so/cuso/sp/hfcn_wp.pdf http://www.cisco.com/warp/public/cc/so/cuso/sp/mllt_wp.pdf http://www.cisco.com/warp/public/cc/so/cuso/sp/dcsis_wp.pdf HFC http://www.cisco.com/warp/public/cc/so/cuso/sp/2way_pl.pdf

db - dbm - dbmv - 75 0 dbmv = 75 1

CATV - HFC - CATV. NTSC - 1941 6 MHz PAL - 8 MHz SECAM - 8 MHz

- C/N ( CNR) - S/N ( SNR) C/N - QPSK -

QAM - QAM 16- QAM ( )64-QAM ( 6 )256-QAM ( 8 ) (DS) - (US) - SID - ID: CMTS MAC

FDM - - HHP - DPT - RPR SRP - (DPT )

CB HAM HAM 136 MH HAM TV 2-4 TV 5-6 2 6 5.75 50-54 72 76 88 108 A-6 FM A-1 A (14) HAM E (18) 1 RF 150 (19) 300 (36) RF 6 (MHz) 450 (61) AA 450 (63) ZZ 600 (87) RF 750 CATV RF 1000 (100) EIA HRC ( ) IRC ( ) 600 (86)

Region or Country Split (MHz) Plan North, Central, and South America, 40/52 China, Korea, Phillipines, Thailand, Singapore Australia 65/85 Japan, New Zealand 55/70 India, Malta, Eastern Europe 30/48 Western Europe, Ireland, United 65/85 Kingdom

/ RF

IP : PSTN IP RDC ubr7246vxr ~ 100 CNN HBO A&E ESPN TBS PC

DOCSIS* 64-QAM 256-QAM 6 MHz 27 Mbps 38 Mbps * DOCSIS Phy MAC

DOCSIS* QPSK 16-QAM 200 khz 400 khz 800 khz 1600 khz 3200 khz.272 Mbps.546 Mbps 1.108 Mbps 2.176 Mbps 4.352 Mbps.546 Mbps 1.108 Mbps 2.176 Mbps 4.352 Mbps 9.704 Mbps * DOCSIS Phy MAC

Web http://www.cisco.com/cable http://www.cablemodem.com http://www.cabelelabs.com http://www.scte.org http://cable.doit.wisc.edu http://www.catv.org - Walter Ciciora/James Farmer/David Large ISBN # 1-55860-416-2 / Donald Raskin and Dean Stoneback ISBN # 0-13-636515-9 Jeff Thomas ISBN # 0-13-306382-8

CATV 50 DOCSIS RF

HFC HFC HFC

5 Local ( ) (TV,, )

HFC

( ) 2002000

H H H N N PT - PT N H 1 5 N 200 2000 N N N N N H N N H N ( ) N

HFC NarrowCast / SONET/SDH

HFC HFC 500

HFC 20K HHP 100K HHP 20K HHP 40 500 HHP 500 HHP 500 HHP

HFC 100K HHP 20K HHP 50K HHP 500 HHP 2000 HHP 500 HHP

RF IP RFIP RFIP

CB HAM HAM 136 MH HAM TV 2-4 TV 5-6 2 6 5.75 50-54 72 76 88 108 A-6 FM A-1 A (14) HAM E (18) 1 RF 150 (19) 300 (36) RF 6 (MHz) 450 (61) AA 450 (63) ZZ 600 (87) RF 750 CATV RF 1000 (100) EIA HRC ( IRC ( ) 600 (86)

CMTS ( )!

!

DOCSIS DOCSIS 5-42 MHz ( ) 25 db ( ) <= 0.800 msec -23 dbc(7.0%) 5-42MHz:.5 db/mhz 5-42MHz: 200ns/MHz DOCSIS +8 to +58 dbmv (QPSK) ( ) +8 to +55 dbmv (16-QAM)

20.00 MHz

15.6 MHz 17.55 MHz GAP (1950 khz)

(KHz) (KHz) (KHz) 200 (KHz) 400 (KHz) 800 (KHz) 1600 (KHz) 3200 (KHz) 5000 5950 950 4 2 1 0 6200 7000 800 4 2 1 0 0 7300 9500 2200 11 5 2 1 0 9900 10100 200 1 0 0 0 0 10150 11650 1500 7 3 1 0 0 12050 13600 1550 7 3 1 0 0 13800 14000 200 1 0 0 0 0 14350 15100 750 3 1 0 0 0 15600 17550 1950 9 4 2 1 0 17900 18068 168 0 0 0 0 0 18168 21000 2832 14 7 3 1 0 21850 24980 3040 15 7 3 1 0 24990 25670 680 3 1 0 0 0 26100 26960 860 4 2 1 0 0 27410 28000 590 2 0 0 0 0 29700 40000 10300 51 25 12 6 3 0

CMTS

RF

ubr7246vxr 44 MHz 5-42 MHz ( ) ( ) IF H L RF 88-860Mhz C

... Rx : Rx : Rx : (IP )

CMTS LC 1x1 DO U0 U0 = 20 MHz @ 1.6 MHz BW =4 2.56 Mbp

LC 1x4 CMTS DO UO U1 U2 U3 U0 = 20 MHz @ 1.6 MHz U1 = 22 MHz @ 1.6 MHz U2 = 26 MHz @ 1.6 MHz U3 = 28 MHz @ 1.6 MHz BW = 3 10.24 Mbps US BW

! LC 1x4 CMTS DO UO U1 U2 U3 U0 = 20 MHz @ 1.6 MHz U1 = 22 MHz @ 1.6 MHz U2 = 26 MHz @ 1.6 MHz U3 = 28 MHz @ 1.6 MHz BW = 10.24 Mbps! US

! ubr-mc16c 64 QAM 27 Mbs TX 1 RF 50-750 MHz F 1 500 # 1 500 # 2 500 # 4 6 MHz BW 44 MHz IF RX 1 RX 2 1 (32 db CNR) QPSK 2.3 Mbs 1.6 MHz RX 3 RX 4 RX 5 RX 6 4 3000 2 (32 db CNR) 3 (34 db CNR) 4 (35 db CNR) 4 ( 2000 )

C/N C/N 32 db34 db35 db C/N C/N C/N = 27.04 db

S # 1 32 db US # 2 32 db S # 3 34 db US # 4 35 db CNR : S # 1+ US # 2; db = 0 db, db= 3.0 db, 129.0 db 1 + US # 3 db = 5 db, db = 1.2 db, 27.8 db + US # 4 db = 7.2 db, 2 db = 0.76 db, 27.04 db 2 3 27.04 dbc/n

! 3.58 MBps! CMTS 512 Kbps US 512 Kbps US 512 Kbps US 512 Kbps US 512 Kbps US 512 Kbps US 2.5 Mbps! 512 Kbps US A B

CMTS HFC Tx Rx 4 10 Mbps... A B

John Chapman CMTS? 250 20021John ChapmanSCTE ET

CMTS CM = CM CMTS CM 20021John ChapmanSCTE ET

IP : 1 6 2000 HHP 26 Mbps / 6 Rx / 2000 HHP => HHP 2.2 kbps @ 10 % => 20 kbps @ 20 % 250x => 100 kbps @ 20% => 500 kbps 2.5 Mbps / 2000 HHP => HHP 1.25 kbps @ 10% => 12 kbps @ 20% => 60 kbps @ 20% => 300 kbps 550 kbps / 300 kbps => 1.8 / 20021John ChapmanSCTE ET

20021John ChapmanSCTE ET

1 5 26 Mbits? Relative % 20% of avg 20% of 25% of users Direc t % 1% 5% 25%

kbps 80 2,000 256 kbps 24 384 100 pps bytes 25 400 165 1518 1518 21 pps bytes 47 64 32 1518 1518 8 20021John ChapmanSCTE ET

IP TCP/UDP IP PPS 20021John ChapmanSCTE ET

kbps % % pps bytes pps 2000 1518 165 1931 12 20% 1% 1173 256 1518 21 1931 92 20% 5% 1832 80 400 25 7185 287 25% 25% 1150 D/S 26.25 Mbps Users per : 1150 D/S MP% 90%

kbps % % pps bytes pps 384 1518 32 5 150 20% 1% 475 100 1518 8 18 150 20% 5% 365 24 64 47 52 2424 25% 25% 207 U/S 2.56 Mbps U/S 80% Users per : 207 20021John ChapmanSCTE ET

LC 1150 207 1 6 HHP 1150 766 7664 1150 1241 128 1277 HHP1.5 MP10% 20021John ChapmanSCTE ET

256 1518 80 100 400 1518 24 400 => Web * %MP a + * %MP a + * %MP a + * %MP a + * %MP a + 256 1518 80 100 400 1518 24 400 MP a = market penetration of application within subscriber base Sum of {Application s * market penetration} kbps bytes pps 2,000 1518 165 256 1518 21 80 400 25 kbps bytes pps 384 1518 32 100 1518 8 24 64 47

2000 1518 256384 1518 1518 80100 4001518 Platinum Gold 24 Silver 400 2000 1518 256384 1518 1518 80100 4001518 24 400 2000 1518 256384 1518 1518 80100 4001518 24 400 MP t = market penetration of service level within subscriber base => * %MP t + * %MP t + * %MP t Sum of {tier s * market penetration} kbps 2,000 bytes 1518 pps 165 256 1518 21 80 400 25 kbps bytes pps 384 1518 32 100 1518 8 24 64 47

QOS QoS QoS 20021John ChapmanSCTE ET

John Chapman 20021John ChapmanSCTE ET

MSO

Web (WebTVLiberate ) ( ) IP ( /

(QoS)

DOCSIS

Cisco ubr7246vxr 1+1 POW ERFAULT DATA ALARM CMTS CMTS HCCP WaveComm POWERFA U LT DATA ALARM SNMP WaveComm SNMP HFC 200010

Cisco ubr7246vxr N+1 PO WE RFAULT DATA ALAR M POW ERFAULT DATA ALARM POW ERFAULT DATA ALARM POW ERFAULT DATA ALARM PO WE RFAULT DATA ALAR M POW ERFAULT DATA ALARM POW ERFAULT DATA ALARM POW ERFAULT DATA ALARM POW ERFAULT DATA ALARM POWERFUTDT A L A A ALAR M PO WERFAL U T DATA ALAR M POW ERFAULT DATA ALARM POW ERFAULT DATA ALARM POW ERFAULT DATA ALARM PO WE RFAULT DATA ALAR M POW ERFAULT DATA ALARM POW ERFAULT DATA ALARM PO WE RFAULT DATA ALAR M POW ERFAULT DATA ALARM POW ERFAULT DATA ALARM CMTS WaveComm SNMP CMTS WaveComm SNMP packetcable. HCCP CMTS WaveComm SNMP Cisco SNMP RF CMTS WaveComm SNMP CMTS WaveComm SNMP HFC

ubr10012 DC AC* DOCSIS N+1 1 (GPS BITS) WAN, (RPR) *2002 AC

ubr10012 5x20SRF

RF ubr10012 & ubr7200 ( / ) DOCSIS RF ( & ) RF MC28 -> MC5x20 RF 1 3RU 250 RF!!!

RF-

DOCSIS 1.1

QoS

DOCSIS 1.1 CM QoS QoS (BPI+)

CM CMTS QoS CM

CM CMTS CMTS (CIR) (RTPS) Unsolicited Grants UGS) CBR - (UGS-AD) UGSRTPS (nrtps)

D-QoS CM CMTS CMTSCM MAC QoS DSA ( ) DSC ( ) DSD ( ) VoIP

CM CMTS : DOCSIS 1.0 DOCSIS 1.1 CLI MIB

CM CMTS (cops) AAA

CM CMTS CMTS CM MAC VoIP

CM CMTS

QoS QOS QoS CMTS CMTS CMTS

QOS? QoS (PQoS) QoS (DQoS)

QoS CMTS CMTS

L2/L3/L4 ( QoS)

1 2 A (SF) 3 N X

DOCSIS http://www.cisco.com/cgi-bin/tablebuild.pl/cpe-conf EuroDOCSIS 1.1 1 1 QoS

: ( ) CMTS QOS QOS 7 1522( )

QoS DOCSIS 1.1 QoS MSO DOCSIS (WFQWREDCAR ) QoS

SP A B QoS

A B

PSTN & TV (HFC)

IP QoS IP QoS PSTN & DOCSIS 1.1 QoS &

DOCSIS 1.1 SFID

IP QoS IP QoS PSTN CMTS & DOCSIS 1.1 QoS &

DOCSIS 1.1 QoS IP QoS DOCSIS US DOCSIS ToS US DOCSIS DS

QoS IP QoS IP QoS PSTN & DOCSIS 1.1 QoS &

(DoS) SmurfTeardropPing-of-death (ToS) / ( )

IP IP PSTN RDC ubr7246vxr < 100 CNN HBO A&E ESPN TBS PC

IP -- IP PSTN & DoS RDC & DoS & DoS & DoS ToS & DoS PC ubr7246vxr Tap ~ 100 CNN HBO A&E ESPN TBS ToS & DoS

ARP ARP CMTS ARP DOCSIS / Cisco CMTS no cable proxy-arp DOCSIS ARP

MAC MAC DOCSIS Cisco CMTS CMTS OS

IP IP / Cisco CMTS DHCP CMTS IP

QoS QoS / Cisco CMTS QoS CMTS QoS DOCSIS 1.1 DOCSIS

DOCSIS / ( )

!

-

QoS