RFGW-10
(RF Gateway)
Visión General
Presentation_ID
© 2006 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
1
Qué es RFGW-10?
 RFGW-10 es una plataforma Carrier Class Universal Edge QAM diseñada para soportar
DOCSIS MCMTS y aplicaciones estándar de delivery por Video.
 Igual a los edge QAM tradicionales, el RFGW10 recibe tráfico DOCSIS/Video vía
interface Ethernet y convierte la señal digital DMPT/MPEG al MPEG analógico y realiza el
streamer de la señal a los suscriptores.
 RFGW-10 es un modulador de borde que agrega múltiples fuentes de señal DADOS/VIDEO,
procesándolas en una señal digital MPEG que va a ser distribuida a través de modulación QAM
hasta los usuarios finales (cable modems y set-top boxes).
 Provee soporte a varios estándares de video broadcast (Standard and High Definition
Digital Broadcast Television, Switched Digital Video (SDV), Video on Demand (VoD),
y DOCSIS/Modular CMTS services).
 Las versiones iniciales del Cisco RFGW-10 fueron equipos de downstream.
(downstream del Cisco RFGW-10 para el cable modem o set-top box).
 El RFGW-10 fue diseñado basado en la plataforma de switch Cisco Catalyst (CAT4K).
Presentation_ID
© 2006 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
2
RFGW-10 Características Generales



Presentation_ID
13RU Carrier Class Chassis
•
9” Rack-mount
•
4536 watt potencia
•
Fluxo de Ar Front to Rear (frente-trás)
•
Switch de RF Integrado
•
Cabeamento único (Wire Once) conectores tipo Coaxial
•
Painel Frontal LCD
•
perfomance do sistema > 100Gbps
Arquitectura Redundante
•
Todos os módulos principais redundantes (Supervisor, Line Card, Power Supply)
•
Switch RF integrado (Dual Zone Integrated RF Data Path)
•
tempo de comutação 500ms (Line Card failover)
•
suporte a alta disponibilidade SW e HW
•
Redundancia de portas GE / 10GE
•
DOCSIS Timing Interface (DTI) Redundante
•
Sistema dimensionado para operar com apenas uma fonte (Power Supply)
Componentes principales
•
(2) Supervisor Card Slots (1:1 Redundante)
•
(2) Timing, Communication, and Control (TCC)/DTI Card Slots (1:1 Redundante)
•
(10) Universal Line Card Slots (N:1 Redundante)
•
(12) RF Switch Card Slots (Dual Zone Redundancia)
•
(2) DC PEM Module Slots (1:1 Redundante)
•
(1) Fan Tray Module
© 2006 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
3
RFGW Arquitectura
Backhauls
Supervisor Card
MPC8540
Control
Path
Tie
FPGA
Punt Path
Backhauls
Supervisor Card
K2
GE Switch
Chipset
Coax Ports
Tie
FPGA
MPC8540
Punt Path
Control
Path
K2
GE Switch
Chipset
RF Switch Matrix
Analog RF
Midplane
Analog RF
Analog RF
Sardine
Sardine
UPX
Legend
Clks
Timing Plane
FPGA
Data Plane
RF Data
(Analog)
Control Plane
Inter-Board
Connections
UPX
Clks
FPGA
Discus
FPGA
CPU
8347
CPU
8347
DTI
DTI
CPU
8548
Discus
FPGA
Yellowfin
Cobia
Yellowfin
CPU
8548
Cobia
Punt Path
DTI Card
DTI Server
Presentation_ID
© 2006 Cisco Systems, Inc. All rights reserved.
DTI Card
DS-48 LC
DS-48 LC
DTI Server
Cisco Confidential
4
Ciclo de vida de los paquetes:
Vista Data Plane
q
DOCSIS
q
q
Receives DEPI
data (front panel
10xGE)
Forwards traffic to
LC based on IP
Address and UDP
Range
Supervisor
X 1 GE
q
q
Terminates serdes
data path
Extracts DEPI
Header info
Generates PKT
processing CMD
for Cobia
q
q
q
Parses CMD
pakets
Fetches data from
DDR-2 memory
Moves MPEG
packet to YF
q
q
q
FEC
J.83
DTI Re-Stamping
of Timestamp
q
q
q
QAM Modulation
Upconvertion
RF Output
Amplifer
8b/10b
serdes
MCP8548
Cobia FPGA
Yellowfin FPGA
Great White UPX
X 10 GE
DOCSIS
Timing
q
Video
Presentation_ID
q
Receives DEPI
data (front panel
10xGE)
Forwards video
traffic to uTSEC
based on IP Addr
and UDP range
q
q
q
© 2006 Cisco Systems, Inc. All rights reserved.
Terminates Video
data path
Classifies Video
Packets
Generates CMD
packets to Cobia
Cisco Confidential
q
q
Handoff of Video
pkts from SW to
HW
Inter QAM channel
flow scheduling
q
q
q
q
q
PID remapping
PCR restamping
CC restamping
J.83
FEC
q
q
q
QAM Modulation
Upconvertion
RF Output
Amplifer
5
Chassis - Vista Frontal
LCD
Module
 13RU, Front to back
airflow
 12 Front-side vertical
slots
Supervisor
Slots
 (2) CAT4K compatible
Supervisor Engines
slots (redundant)
RF LC SLOTS
 (10) Native, RF Line
card slots
 Air Intake Plenum
located on bottom
front.
 Air Exhaust Plenum
located on Top
FAN Intake
Module
Presentation_ID
© 2006 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
 Front Panel LCD and
Push Button assembly
built into Air Exhaust
Plenum
6
Chassis - Vista Posterior
FAN EXHAUST
 Rear side slots that for redundant
Timing/Utility (TCC+) line cards.
 12 back-side horizontal slots for
passive RF switch and I/O cards
 120 bi-directional RF ports
RF SWITCH/
HFC Coax
Connectors
TCC
SLOTS
 Rear side power supply bays
supporting (2) power supply
modules in a 1+1 redundant
configuration.
 DC Facility terminal block located
on chassis
 Fan / Exhaust module located on
top rear of chassis
Power
Supply
Bay
Presentation_ID
© 2006 Cisco Systems, Inc. All rights reserved.
Power
Supply
Bay
Cisco Confidential
7
Vista General - Chassis System Slot
TCC 1
TCC 0
Slot 14
Slot 13
RF LC
Slot 3
RF SW 1
RF SW 2
RF SW 3
RF SW 4
RF SW 5
RF SW 6
RF SW 7
RF SW 8
RF SW 9
RF SW 10
RF SW 11
RF SW 12
RF LC
RF LC
RF LC
RF LC
RF LC
RF LC
RF LC
RF LC
RF LC
SUPERVISOR
Slot 2
Exit Air Plenum
Exit Air Plenum
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
Slot 9
Slot 10
Slot 11
Slot 12
SUPERVISOR
Slot 1
LCD
System Air Inlet
Power Supply 1
PS Air Inlet
Presentation_ID
© 2006 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
Power Supply 2
8
Presentation_ID
© 2006 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
9