CCAP - SCTE Piedmont Chapter

Report
CCAP
Converged Cable Access Platform
Gerry White, Distinguished Engineer CTO Group CABU
With material shamelessly stolen from multiple industry wide CCAP Sources
July 2014
© 2012 Cisco and/or its affiliates. All rights reserved.
1
• Why CCAP?
• What is CCAP?
• Differences to current CMTS
• CCAP components & implementation
• Distributed CCAP / Remote PHY
• NFV & Virtualized CCAP
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• More Video
• More Devices
Keep up with unprecedented
bandwidth growth
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• More Personal
• More Interactive
Pressure to reduce
rack space and power
Migrate to an all-IP network
with the existing infrastructure
4
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• Converged multi-service platform - single port per SG
• Increased DOCSIS capacity / SG
• Reduced cost-per-downstream
• Reduce rack space per system
• Scaleable deployment options
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• Separate CMTSs & EQAMs
• Limited channel capacity per platform
broadcast
narrowcast
Router
• Multiple platforms for each
CMTS
• Complex combining
• Scaling problems as add SGs
OOB
UEQAM
analog
OOB
combining
Laser
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Rcvr
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• Combine CMTS & EQAM
Router
• Higher performance
• Single port per SG
Digital Video and data
• Simpler combining
• Easier scaling
CCAP
OOB
analog
OOB
combining
Laser
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Rcvr
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• Include optics and combining
Router
• Further space reductions
Digital Video and data
OOB
analog
CCAP
OOB
Analog
optics
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• Integration of services
• One port per SG
• High capacity & density
• Lower costs
• Efficiency & scale
• Centralization of resources
• Hub in box
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• Goals
Achieve 10+ Gbps in the DS.
Achieve 1+ Gbps in the US
Backward compatibility story with DOCSIS 3.0, 2.0, & 1.1.
Better spectral efficiency.
• Technology
OFDM, OFDMA, LDPC
New DS and US spectrum
Re-use of D3.0 MAC concepts
• This will allow D3.1 to offer services competitive with FTTH.
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Exabytes per month
80
• Converged multi-service platform - single port per SG
70
• Increased DOCSIS capacity / SG
60
• Reduced cost-per-downstream
50
• Reduce rack space per system
40
30
• Scaleable deployment options
20
• + DOCSIS 3.1
10
0
2000
2005
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2010
2015
Year
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12
IP Services
Data
VoIP
IP
Video
CMTS
DOCSIS
EQAM
DOCSIS
Combining
Network
VoD
EQAM
VoD
Combining
Network
SDV
EQAM
SDV
Combining
Network
Broadcast
EQAM
Bcast
Combining
Network
F
C
o
o n
r
r
m e
d
w
b r
a
i
HFC
SG 1
F
C
o
o n
r
r
m e
d
w
b r
a
i
HFC
SG N
Digital Video
Services
Linear
VoD
NPVR
Inefficient EQAM capacity utilization, complex combining networks
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Integrated CCAP
IP Services
Data
VoIP
IP
Video
Digital Video
Services
Linear
VoD
NPVR
CMTS
Universal
EQAM
F
C
o
o n
r
r
m e
d
w
b r
a
i
HFC
/PON
SG 1
F
C
o
o n
r
r
m e
d
w
b r
a
i
HFC
/PON
SG N
Increase capacity & reduce cost, rack space and power consumption
One port per SG
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Generic CCAP Components
Routing
Packet engines
Control & management
DOCSIS +
EQAM
Supervisor
& packet
engine
DOCSIS
lineDOCSIS
cards line
Active
line cards
cards
Spare line
card(s)
BH PIC
RF PIC
Timing
Northbound interfaces
To core
10G Ethernet
Southbound interfaces
To HFC
RF or optical
External timing
Digital and RF mid-planes
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Supervisor Cards
• Integrated backhaul capacity
• 1+1 redundancy
• N * 10G interfaces
RF Line Cards
• Port per SG
• Full spectrum per port
• DS + US on one card or
• DS cards + US cards
• N+1 redundancy with integrated RF Switch
Power Supplies
• 5 -> 10KW
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RF Line Card PICs
 High density connectors
 Integrated analog optics
 Remote PHY digital optics
Supervisor PICs
 N x 10 GE ports
 Management
 Timing
Power Connections
Cooling
 Exhaust fans
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Capacity
Convergence
Reduced costs
Reduced space &
power
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DOCSIS 3.0 + 3.1
Scale from 1 to 10 Gbps downstream per SG
100 to 200Gbps backhaul initially – more later
DOCSIS
IP and MPEG video
narrowcast and broadcast
Next generation silicon – processing, packet forwarding, DOCSIS
High level of integration
Reduced cost per channel
Integration
Reduced combining
Integrated optics
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• Remove RF from head end / hub
• Replace analog fiber from hub to node with digital
• Leverage Ethernet / PON and digital optics
• Extend IP networking to the node
• Simplify operations
• Keep the node as simple as possible
• Keep the complex s/w central
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DOCSIS
L2
MAC
Common
L1
PHY
• In a I-CCAP, the CMTS and EQAM share a common PHY
RF
• PHY provides digital to analog conversion
• Clock is local to the CCAP platform
Video
L2
MAC
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clock
22
DOCSIS
L2
MAC
Remote
PHY
Video
L2
MAC
DEPI
Ethernet
Ethernet
Remote
PHY
UEPI
clock
R-DTI
Common
L1
PHY
RF
clock
• The CCAP PHY chip is remotely located and connected over Ethernet
• Digital to analog occurs in the Remote PHY node
• Remote DTI manages transfer of time and frequency
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DOCSIS Signaling
Remote PHY Signaling
CCAP
Core
Internet
Digital Fiber (IP)
L2 and
above
DOCSIS
PacketCable
DOCSIS
Policy Server
DOCSIS
Provisioning
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CCAP
Remote
PHY
Coax
DOCSIS
CM
• Adapts CCAP to an HFC plant that contains digital fiber
instead of linear fiber
• DOCSIS signaling remains end-to-end
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Router
• Remove RF from head end / hub
Digital Video and data
• Replace analog fiber from hub to node with digital
• Leverage Ethernet / PON and digital optics
OOB
CCAP
OOB
• Extend IP networking to the node
• Enabler for virtualization
Digital
Optics
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Concept
dDOS
VM
SBC
VM
Firewall
VM
NAT
VM
CGN
VM
DPI
VM
IPS
VM
Virus Scan
VM
DHCP
VM
DNS
VM
PCRF
VM
Portal
VM
WLC
VM
RaaS
VM
SDN Ctrl.
VM
BRAS
VM
NMS
VM
Caching
VM
CDN
VM
WAAS
VM
Value Proposition
Leverage data centre tools and technology
Shorter innovation cycle
Run network functions in VMs in data centers
Improved service agility
Enablers
Hypervisor and cloud computing technology
Improving x86 h/w performance
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Reduction in CAPEX and OPEX
Applications
CCAP?
27
With Remote PHY
CCAP -> CCAP core + Remote PHY
With no RF interfaces CCAP core is a canditate for virtualization
vCCAP runs in VM on standard server platform with Ethernet interfaces
CCAP = CMTS +EQAM
vCCAP is actually vCMTS + vEQAM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
CCAP
VM
© 2012 Cisco and/or its affiliates. All rights reserved.
CCAP becomes vCMTS + vEQAM + R-PHY
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
NFV is a direction that Service Providers are headed in an effort to reduce OPEX

It allows a generic hardware complex with specialized software applications.

It trades off specialized hardware for less optimized common platforms

It uses standard management and orchestration tools


© 2012 Cisco and/or its affiliates. All rights reserved.
NFV and Orchestration required is not simple but
- It is heavily leveraged from the data center
- It is mainstream technology
- It could have significant advantages especially for scaling & OPEX
Physical versus virtual will be a choice
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Products
Applications & End to End Connectivity
Applications
Residential & Business Services Applications
Evolved Services Platform
Orchestration
Installed Base
+ CCAP
HFC
Plant
-
- Classic HFC
© 2012 Cisco and/or its affiliates. All rights reserved.
CCAP-Core
NFV
FTTx OLT
RPHY
SHELF
RPHY
NODE
ONT
- Small Hub
- Linear Fiber
- Deep Fiber
- Digital Fiber
Ethernet
NID
- High SLA Commercial
- Select Residential
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Thank you.
Gerry White
[email protected]
© 2012 Cisco and/or its affiliates. All rights reserved.
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