Anticipating the future: End to End Packet Optical Architecture for
Convergent Network ModernizationDavid Bianchi, Sr BDM GSP EMEAR
Gianluca Calabretta, BDM GSP EMEAR
• Introduction
• Solution Overview and Applications
• Architecture Overview
• Network Technology
• Network Migration Scenario
• Conclusion
Agenda
3
Introduction
4
Introduction
Expenses
Revenue
OpEx
CapEx ARPU
How to Pay for it ?Technology
ConfluenceGMPLS
WSON
SDN
NFV
DWDM
100 Gig
IP/MPLS
MPLS-TP
OTN
SONET/SDH
Service Diversity
IPTV
Business
Ethernet
EPL
EVPL
E-LAN
HSI
DCIL3VPN
Mobile
Backhaul
VoD
FTTx
L2VPN
• Traffic is Growing &
Dynamic
• Transport Capacity Planning
Challenges
• SONET/SDH – EoL
Expenses
Revenue
OpEx
CapEx ARPU
How to Pay for it ?Technology
ConfluenceGMPLS
WSON
SDN
NFV
DWDM
100 Gig
IP/MPLS
MPLS-TP
OTN
SONET/SDH
Service Diversity
IPTV
Business
Ethernet
EPL
EVPLE-LAN
HSI
DCIL3VPN
Mobile
Backhaul
VoD
FTTx
L2VPN
• Traffic is Growing &
Dynamic
• Transport Capacity
Planning Challenges
• SONET/SDH – EoL
Smooth migration or forklift?5
How to move away from SDH ?
Circuit Emulation Packet network
Expensive ? Theoretical ? Big Opex investment ? Unsure TCO ?
Present deployments only played with E1 and/or STM1 links
6
Solution Overview and Applications
7
Mobile
Utility
Applications – What does still SDH do ?
Leased line
Corporate
Microwave links
STM4 – STM16 SNCP Ring
Landing stations
Railways
E1
E1/E3/STM1
E1/STM1
STM1/STM4
STM16/STM64
E1/E3/STM1
PD
H / S
DH
Ag
gre
ga
tion
ADM
ADM
DXC STM-64 Network
DXC
DXC
ADM
Hands off
DC
BSC /
MSC
/RNC
Packet
Network
POS
FCoS
E1/STM1
8
Architecture Checklist Service Checklist
• Transport Operational Model
• Full FCAPS
• Easy and standard OAM
• Resiliency: < 50ms protection
• Graceful hands off
• Smooth migration
• Transport compatible footprint and power
• All PDH / SDH interfaces:
• From E1 to STM-64
• Predictability, Reliability
• Technology agility :
• SDH, Ethernet, MPLS, OTN, DWDM
• Density, Scalability and Diversity
• Network Management
You cannot give up9
Solution Overview
300mm depth
Up to 100G Ethernet ports
Up to STM64 SDH ports
Dense PDH ports
IP/MPLS
Circuit Emulation
SNCP & 10G HO and LO XC
NCS 4000
OTN and Packet
ASR9000
Full IP/MPLS
ASR 900: MPLS, Ethernet, CEM
10
Network overview
NCS 2000
NCS 2000Photonic Transport
NCS 2000
ASR 900
ASR 900
ASR 900
Ethernet
Access
SDH
Access Rings
Ethernet-
over-SDH
PDH-over-
SDH
PDH Access
NCS 2000 NCS 2000
Converged Packet/OTN
Metro IP/MPLSConverged Packet/OTN Core
CoreIP/MPLS
11
Mobile
Utility
Applications – What does will SDH do ?
Leased line
Corporate
Microwave links
STM4 – STM16 SNCP Ring
Landing stations
Railways
E1
E1/E3/STM1
E1/STM1
STM1/STM4
STM16/STM64
E1/E3/STM1
AS
R 9
00
ADM
ADM
ASR90xPacket / OTN Network
Full IP/MPLS network
ASR90x
NCS4000
ASR9000
NCS4000
ASR9000
Hands off
DC
BSC /
MSC
/RNC
Ethernet
FCoE
E1/STM1
12
Architecture Overview and Network Technology
13
Architecture Overview
14
TDM Services across the “modernized” Converged Network
IP/MPL
S
IP/MPL
S
IP/MPL
S
ROADM ROADM ROADM
OTU4
TDM Customer
Premises
Packet
Long Haul
Transport
9xx
Modernized TDM
Customer
STM16s
10GE
MPLS Transport
Bi-directional LSPs with 1:1 Path Protection
(Working / Protect LSP)
Pseudo-Wire
IP Customer
Premise
10GE9xxModernized IP
Customer
E3/STM1
STM1/STM4/S
TM16/STM64
Service
Edges
Primary LSP
Backup LSP
Circuit Emulation Pseudowire
Circuit Emulation
Endpoint
15
Four Different Modes:
1. SAToP = Frame agnostic DS1/DS3 (RFC 4553)
2. CESoP = Frame aware NxDS0 (RFC 5086)
3. CEP = SDH Container (VC12, VC4, VC4-Xc) based (RFC 4842)
4. TSoP = Full SDH Frame + TOH (not a Standard!)
Ingress CEM Node samples TDM Frames for Packetization
Egress CEM Node collects Packets and reconstructs TDM Frames
TDM Frames
CEM capable
Packet Node
CEM Packets
CEM capable
Packet Node
TDM Frames
PSN
Header
PW
MuxControl
WordParts of TDM
Frame
Pseudowire Identifier
Transport between CEM
Nodes
AIS and RDI Generation
on Remote EndCircuit Emulation (CEM)
New !
Full VT1.5 Container (POH + Payload)
Circuit Emulation Modes – CEP (RFC 4842)
MPLS 42xx
ADM
Channelized
OC3/OC12
DCS
TDM Payload
104 Bytes
(Default Size for VT1.5 CEP)
OH
12
Bytes
Pseudowire Packet
Full VT1.5 Container (POH + Payload)
VT1.5 Example
(CEP is also applicable to STS, STS-Xc, STS-Nv)
UPSR 42xx
ADM
++
17
TDM Services across the “modernized” Converged Network
IP/MPL
S
IP/MPL
S
IP/MPL
S
ROADM ROADM ROADM
OTU4
TDM Customer
Premises
Packet
TDM
Customer
Premise
9xx
Modernized TDM
Customer
OC48s
10GE
MPLS Transport
FlexLSP 1:1 Path Protection (Working / Protect LSP)
Circuit Emulation
Pseudo-Wire
IP Customer
Premise
10GE9xxModernized IP
Customer
Modernized Central Office
NCS
4000
903
907903
903907
STM64 ODU2
E1/E3
STM1/STM4/STM16
SAToP/CEP
ASR
900010GE
18
PW
SDH/CEM Service Provisioning
Cross
Connect
PWCEM
Uplink
Ethernet
Port (NNI)
A Z
Control Plane (RSVP-TE) for bir-directional Tunnel (LSP) Setup
CEM
Uplink
Ethernet
Port (NNI)
Node A Node Z
Path with
Constraints
Cross
Connect
Bi-directional MPLS Tunnel (LSP)
Touch Point
#1
Touch Point
#2
Provisioning
Tool
STS or
VT1.5
STS or
VT1.5
Access
VC Controller
(UNI)
Access
VC Controller
(UNI)
HO … High Order (SDH VC4, VC$-Xc)
LO … Low Order (SDH VC12)
UNI … User Network Interface
NNI … Network Network Interface
T-LDP signaled Pseudowire (PW)
MappingMapping
VC4 or
VC12
VC4 or
VC12
Network Technology
20
Associated Bi-directional LSPs
21
IP/MPLS
Attachment
Circuit Attachment
Circuit
Primary path (Predictable route, guaranteed B/W bi-directional associated TE tunnel)
Standby tunnel (Predictable route, guaranteed B/W bi-directional co-associated TE tunnel)
Inband MPLS-TP OAM
1:1 LSP OAM driven protection
Sum of tunnels <= EF B/W
Admission control
All
ClassesClass1
Class0
EF Signalled tunnel LSP setup
Associated bi-directional LSPs
22
Multi-Layer Control Plane Summary for SDH-SONET & Ethernet
NCS 4000
ASR 9000
NCS 2000
NCS 4000
ASR 9000
NCS 2000
ASR
900
ASR
900
WSON
OSPF & RSVP-TE
T-LDP (Pseudowire)
OSPF & RSVP-TE OSPF & RSVP-TE
DWDM
GMPLS
UNI
DWDM
GMPLS
UNI
Cisco Evolved Programmable Network Manager
23
Wrap Protection
24
• Relies on a disjoint working and a disjoint protect path between two nodes
• Provides 1:1 protection (only one active LSP) in revertive mode
• Protection switching can be triggered by• Detected defect condition (LDI/AIS,
LKR)
• Administrative action (lockout)
• Far end request (lockout)
• Server layer defect indication (LOS)
• Revertive timer (wait-to-restore)
FlexLSP Linear Protection Overview
PE1 PE2
P2
P1
Working LSP
(Up, Active)
Protect LSP
(Up, Standby)
PE1 PE2
P2
P1
Working LSP
(Down, Standby)
Protect LSP
(Up, Active)
Working LSP
(Up, Active)
Protect LSP
(Up, Standby)
Working LSP
(Down, Standby)
Protect LSP
(Up, Active)
Before Failure
During Failure
25
Mid-point Link Failure – Steady State
Working LSP
Protect LSP
103
203
102101
202 201
211
111
212213
112 113
Head-End Tail-End
Mid-Points
26
Mid-point Link Failure – immediate LOS triggered Wrap
Protect LSP
103
203
101
201
211
111
212213
112 113
X
Wrap
Wrap
Head-End Tail-End
Mid-Points
pre-programmedpre-programmed pre-programmed
27
Mid-point Link Failure – BFD triggered “Clean Up”
Protect LSP
211
111
212213
112 113
XHead-End Tail-End
Mid-Points
28
Failure Local to Head-End – Steady State
Working LSP
Protect LSP
103
203
102101
202 201
211
111
212213
112 113
Head-End Tail-End
Mid-Points
29
Failure Local to Head-End – immediate LOS triggered Wrap
Working LSP
Protect LSP
103102
202 201
211
111
212213
112 113
Head-End Tail-End
Mid-Points
XWrap Wrap
pre-programmed
30
Failure Local to Head-End – BFD triggered “Clean Up”
Protect LSP
211
111
212213
112 113
Head-End Tail-End
Mid-Points
X
31
• No Change to Traffic Flow across the Network
• Compared to MPLS-TE FRR Link/Node Protection
• Sub 50msec Protection for any number of LSPs
• Single Detection and Rewrite Event !
• Everything signaled by the Control Plane, no operational Overhead
Benefits of Wrap Protection
32
LSP Management
33
Bandwidth Accounting
• Global View/Function
• Make sure that PW Bandwidth is available in the Network
• Steer Traffic (LSPs) to/away from certain Links
• Design “controlled” Oversubscription
A B C
Do you have
X Mbps on
Link A?
Do you have
X Mbps on
Link B?
Do you have
X Mbps on
Link C?
Yes/NoYes/NoYes/No
A
Z
A Z
34
Bandwidth Management Example (Initial State)
Z1a
1b
Node A
5G
10G
10G
10G redundant NNI
interfaces carved with
5G TE VLAN
5G
35
Bandwidth Management Example (Slide 1)
ZLSP 1
1a
1b
Node APW 1@1G
Capacity Consumed Remaining
LSP1 1G 1G 0G
TE VLAN 1a/1b 5G 1G 4G
NNI 1a/1b 10G 1G 9G
1G
1G 5G
5G
10G
10G
Build new LSP from Site A to Site Z
with sufficient reserved bandwidth for
new PW service @1G
36
Bandwidth Management Example (Slide 2)
ZLSP 1
Node APW 1@1G
PW 2@4G
Capacity Consumed Remaining
LSP1 1G5G 5G 0G
TE VLAN 1a/1b 5G 5G 0G
NNI 1a/1b 10G 5G 5G
5G
5G
5G
5G
1a
1b
10G
10G
Increase size of LSP1 from 1G to 5G to
accommodate new demand
37
Bandwidth Management Example (Slide 3)
Z
Node APW 1@1G
Capacity Consumed Remaining
LSP1 5G 5G 0G
TE VLAN 1a/1b 5G6G 5G 1G
NNI 1a/1b 10G 5G6G 4G
PW3 setup request fails due to lack of
bandwidth in TE VLAN 1a/1b.
Service request to increase to 6G
triggered by fallout event.
5G
5G
6G
6G
1a
1b
10G
10G
PW 2@4G
LSP 1
PW 3@1G
FAILS!
38
Platform Overview
39
Cisco ASR 903
6x Line Card
Slots
Redundant Processors (RSPs)
- Shelf Controller
- Packet Switching
- Timing Interfaces
- Management Interfaces
Redundant
AC or DC Power
3 RU (300m Depth)
40
Cisco ASR 907
7 RU
(300mm Depth)
Redundant
AC or DC Power
Fan Tray
and Filter
Redundant Processors (RSPs)
- Shelf Controller
- Packet Switching
- Timing Interfaces
- Management Interfaces
16x Line Card
Slots
41
• Two En/DSn CEM Modules
• One line card supporting 48x E1/DS1
• One Line card supporting 48x E3/DS3
• SAToP, CEP and CESoP over PWE3
48x E1/DS1 and 48x E3/DS3 CEM Module
48 Port DS1
48 Port DS3
42
Supported CEM Circuit Types on the E3 Module
E3 E3 CEM Circuit (SAToP)
CEP … SDH Circuit Emulation over Packet (RFC4842)
SAToP … Structure agnostic TDM over Packet (RFC4553)
E1 CEM Circuit (SAToP)16x
M13 E1
E3 Port
43
• Mix of 1xSFP+ and 8xSFP Ports providing• CEM and EoS for TDM Migration and SDH/SONET Switching
• Native Ethernet Switching
• Mix of STM1/OC3, STM4/OC12, STM16/OC48, STM64/OC192 for SDH/SONET Services:• Up to 10G (HO), 10G (LO) SONET/SDH Switching capacity
• Up to 10G Ethernet over SONET/SDH Termination
• APS 1+1 and UPSR Protection
• SAToP, CESoP and CEP over PWE3• Via Channelized and Clear Channel SONET Ports
• Up to 8x 1GE Ports for Native Ethernet Services:• MEF2.0 compliant EPL/EVPL and ELAN/EVLAN and ETREE
Combo 10G SDH/SONET/Ethernet CEM Module
1x SFP+ and 8x SFP
45
Supported CEM Circuit Types on the STM-n Module
AUG-64
4x
AUG-16
4x
AUG-4
4x
VC-4-16c VC-4-16c CEM Circuit (CEP)
VC-4-4c VC-4-4c CEM Circuit (CEP)
VC-4 VC-4 CEM Circuit (CEP)
STM-64 Port
AU-4
3x
VC-3
TUG
AU-3
7x
VC-124x
VC-12 CEM Circuit (CEP)
E1 CEM Circuit (SAToP)E1
E3 E3 CEM Circuit (SAToP)
STM-16 Port
STM-4 Port
STM-1 Port
CEP … SDH Circuit Emulation over Packet (RFC4842)
SAToP … Structure agnostic TDM over Packet (RFC4553)
E1 CEM Circuit (SAToP)28x
M13 E1
Hig
h O
rder
Ca
pa
city
(HO
)
Low
Ord
er
Ca
pa
city
(LO
)
VC-3 CEM Circuit (CEP)
46
Supported EoS Termination Types on the STM-n Module
AUG-64
4x
AUG-16
4x
AUG-4
4x
VC-4-16c VC-4-16c CCAT / GFP-F
VC-4-4c VC-4-4c CCAT / GFP-F
VC-4 VC-4 GFP-F
STM-64 Port
AU-4
3x
VC-3 VC-3 GFP-FAU-3
STM-16 Port
STM-4 Port
STM-1 Port
VC-4-8c2x
VC-4-8c CCAT / GFP-F
VC-3-Xv
VC-4-Xv VCAT / GFP-F
VC-3-Xv VCAT / GFP-F
CCAT … Contiguous Concatenation G.707/GR-253
VCAT … Virtual Concatenation G.707/GR-253
GFP … Generic Framing Protocol G.7041
VC-4-Xv
48
Cisco ASR 90x System Architecture
Tra
nsce
ive
rs
Packet/PHY
10G
SONET/SDH/C
EM
10G HO/LO
1x SFP+
8x SFP
Fwd
Redundant RSPs
Tra
nsce
ive
rs
Packet/PHY
10G
SONET/SDH/C
EM
10G HO/LO
…
CEM48x DS1, or
48x DS3 PHY 1x CPAK, or
8x SFP+, or
1x SFP+ & 8x SFP
1x SFP+
8x SFPEoS EoS
… ……
Working Protect
50
• 1-Port 10GE SFP+ & 8-Port 1GE/FE SFP Line Card• 10/100/1000 Copper SFP support
• SFP FX support
• SFP SX/LX/ZX support
• SFP+ SR/LR/ZR and WDM
• Configurable for 10GE LAN PHY and OTU2 OTN Framing
• Designed for Packet Synchronization • SyncE support
• IEEE-1588-2008 support
• Rich Carrier Ethernet Feature Set• EPL/EVPL, ELAN/EVLAN, ETREE
• MPLS, RSVP-TE (Bi-Directional LSPs)
• E-OAM
Combo 1x 10GE + 8x GE/FE Module
1x SFP+ and 8x SFP
1) SW Support in XE3.1951
• 8x 10GE
• SFP+ based, supporting 10GBase-SR, -LR, -ER, -ZR, -BX
• Configurable for 10GE LAN PHY and OTU2 OTN Framing
• 1x 100GE
• CPAK based, supporting 100GBase-SR10, -LR4, -ER4
• Configurable for 100GE LAN Phy and OTU4 OTN Framing
• 2x 40GE
• QSFP based, supporting 40GBase-SR4, -LR4, -ER4
• Configurable for 40GE LAN Phy and OTU3 OTN Framing
High Capacity Ethernet Modules
1x CPAK
8x SFP+
2x QSFP
52
• 2x 100GE Uplinks
• 100Gbps Capacity (protected)
• LAN PHY or OTU4 Framing
• Client Count
• Up to 80x STM1/STM4
• Up to 28x STM16
• Up to 4x STM64
Optical Shelf
STM64
STM64
STM64
STM64
1x100GE
1x100GE
1x100GE Uplink (working) 1x100GE Uplink (protected)
STM1/STM4/STM16
STM1/STM4/STM16
STM1/STM4/STM16
STM1/STM4/STM16
STM1/STM4/STM16
STM1/STM4/STM16
53
• 4x 10GE or 2x 40GE Uplinks • 40Gbps Capacity (protected)
• 1Gbps required (DS1 only)
• 32.9Gbps required (DS3 only)
• LAN PHY or OTU4 Framing
• Client Count• Up to 576x E1
• Up to 576x E3
• Potential good Mix:• 384xE1 (8 Cards)
192xE3 (4 Cards)
Electrical Shelf
1x40GE or 4x10GE
1x40GE or 4x10GE
1x40GE or 4x10GE
Uplink (working)
DS1/E1 or DS3/E3
DS1/E1 or DS3/E3
DS1/E1 or DS3/E3
DS1/E1 or DS3/E3
DS1/E1 or DS3/E3
DS1/E1 or DS3/E3
DS1/E1 or DS3/E3
DS1/E1 or DS3/E3
DS1/E1 or DS3/E3
DS1/E1 or DS3/E3
DS1/E1 or DS3/E3
1x40GE or 4x10GE
Uplink (working)
……
DS1/E1 or DS3/E3
54
ASR 920
Redundant
AC or DC Power
Hot-swappable Fan
(back)24x SFP Ports
(FE/1GE Clients)
4x SFP+
(10GE Uplinks)
Console
Management
Ethernet
55
ASR 920
Redundant
AC or DC Power
Hot-swappable Fan
(back) Console &
Management Ethernet
4x SFP+ Ports
(1GE/10GE)
1x Slot
(8xDS1 CEM Module)
4x SFP Ports
(1GE)
8x 10/100/1000Tx
Ports
Timing
Interfaces
56
• 8 on-board individual physical RJ-48C port connectors
• No break-out panels required
• DS1 SAToP and DS0 CESoP
ASR 920 – PDH Interface LC
57
Cisco NCS 4016 Chassis8x Power Supplies
24 RU
(450mm Depth)
Craft Panel, Console,
Timing, Mgmt Eth
16x
Linecard Slots
4x Fabric Cards supporting
1. Single Chassis
2. Back2Back
3. Multi-Chassis
2x Controllers (RPs)
58
Cisco NCS 4009 Chassis
15 RU
(450mm Depth)
8x Power Supplies
Craft Panel, Console,
Timing, Mgmt Eth
9x
Linecard Slots
2x Controllers (RPs)
4x Fabric Cards
(Single-Chassis only)
59
• Common Linecard Architecture
• 200Gbit/s Bandwidth (Full-duplex)
• OTN Switching
• Packet Switching
• Next-Generation 100G Transceivers (CPAK)
• 2x CPAK + 10x SFP+
• OTN Framed Ethernet (OPU4, OPU2e)
• Transceivers
• CPAK 100GBase-SR10
• CPAK 100GBase-LR4
• SFP+ 10Gbase-SR, -LR, -ER, -ZR
• Tunable ITU DWDM
NCS 4000 200G Packet/OTN Linecard Overview
CPAK CPAK or
10x SFP+
60
4x QSFP28
6x QSFP+
2x CFP2 WDM
• Common Linecard Architecture
• 400Gbit/s Bandwidth (Full-duplex)
• OTN Switching
• Packet Switching
• Two Coherent ITU DWDM Trunks via 2xCFP2
• Per wavelength: 100G QPSK (OTU4), 200G 16QAM (2xOTU4)
• Dual wavelength: 150G 8QAM (3xOTU4)
• Grey Ports via 2x CFP2, 4x QSFP28 and 6x QSFP+
• 40x 10GE, 10x40GE, 4x100GE
• OTN Framed Ethernet (OPU4, OPU3, OPU2e)
NCS 4000 400G Packet/OTN Linecard Overview
61
Compact & Powerful
Access/AggregationFlexible Service Edge
High Density Service Edge
and Core
One Platform, One OS, One Family
Fixed 2RU
240 Gbps
2 LC/6RU
12 Tbps
8 LC/21RU
14 Tbps
10 LC/30RU
60 Tbps
20 LC/44RU
120 Tbps
4 LC/10RU
7 Tbps
ASR 9904
ASR 9001
ASR 9006
ASR 9010
ASR 9912
ASR 9922
Cisco ASR 9000 System Portfolio
nV Satellites ASR 9000v, 901, 920
ASR 9910
8 LC/21RU
48 Tbps
62
Tomahawk 8x100GE CPAK Line Card
New Tomahawk Line Cards
Tomahawk 4x100GE CPAK Line Card
Tomahawk MOD400 with MPAs
Network Migration Scenario
64
TDM Services across the “modernized” Converged Network
IP/MPL
S
IP/MPL
S
IP/MPL
S
ROADM ROADM ROADM
OTU4
TDM Customer
Premises
Packet
Long Haul
Transport
9xx
Modernized TDM
Customer
STM16s
10GE
MPLS Transport
Bi-directional LSPs with 1:1 Path Protection
(Working / Protect LSP)
Pseudo-Wire
IP Customer
Premise
10GE9xxModernized IP
Customer
E3/STM1
STM1/STM4/S
TM16/STM64
Service
Edges
Primary LSP
Backup LSP
Circuit Emulation Pseudowire
Circuit Emulation
Endpoint
65
IP-
MPLS
NG
Metro
NG
Metro
ROADM ROADM ROADM
OTU4
Vz Packet
TDM
Customer
Premise
Vz Long Haul
42xx
STM16s
10GE
MPLS Transport
FlexLSP 1:1 Path Protection (Working / Protect LSP)
Circuit Emulation
Pseudo-Wire
10GE42xx
Modernized Central Office
903
907903
903907
?
Alternative SONET/SDH Migration Approaches
ASR 900 ASR 900 ASR 900
NCS5500ASR9000NCS4000
- OTN+Packet
- DWDM Optimized
- 450 Depth
- SyncE
- FlexLSP/TE based
- Unified Core+Edge
- Tbps / Slot
- Rich IP features
- SyncE
- FlexLSP/TE/SR based
- “new DC Style” SP
Approach
- DC tailored feature Set
- No SyncE
- TE/SR based
66
TDM Services across the “modernized” Metro
IP/MPL
S
IP/MPL
S
IP/MPL
S
ROADM ROADM ROADM
OTU4
TDM Customer
Premises
Packet
TDM
Customer
Premise
90x
Modernized TDM
Customer
STM16
10GE
MPLS Transport
FlexLSP 1:1 Path Protection (Working / Protect LSP)
Circuit Emulation
Pseudo-Wire
IP Customer
Premise
10GE90xModernized IP
Customer
Modernized Central Office
MPLS
Router
903
907903
903907
STM64 ODU2
E1/E3
STM1/STM4/STM16
SAToP/CEP
MPLS
Router
67
Ethernet Services across the “modernized” Metro
ROADM ROADM ROADM
Packet
Ethernet Customers
reached via SDH
STM16s
IP Customers
reached via EoS
OTU4
L2A
Verizon SES
Ethernet over
SDH
1GE/10GE
Native Ethernet
Customer Premises
MPLS-TE Link/Node
Protection
NG
MetroETH
L2A
L2A
L2A Service
Edges
Ethernet/VLAN
“Cross Connect”
SDHCircuit
Ethernet Pseudowire
TE-FRR Primary Tunnel
TE-FRR Backup TunnelL2A L2A
Ethernet NNIs
Modernized Central Office
MPLS
Router
900
900900
900900Ethernet UNIs
10GE VPWS (Limited QoS)
10GE/STM64 ODU2
10/100/1000Tx
100Fx VPWS & Local Connect
1GE
68
Two Office Layouts
ASR 907
MPLS Router
ASR 907
ASR 920
ASR 920
NCS 2000
(ROADM)
Larger Offices
Small Offices
ASR 907
Central Office 1
Central
Office 2
Central
Office 3
ROADM
Degrees
Central Office 4
Central
Office 5
2 x10GE
2x 100GE/OTU4 N x OTU4
ITU
PDH:
E1, E3
SDH:
STM1,STM4,
STM16,STM64
SDH:
STM64clear-channel
Ethernet:
10GE, 40GE, 100GE
OTN:
OTU2, OTU3, OTU4
PDH:
E1, E3
SDH:
STM1,STM4,
STM16,STM64
Ethernet:
1GE, 10GE
100GE/O
TU4Non DWDM Inter-Office
Fiber Link
DWDM Link
DW
DM
Ethernet:
FE/1GE
Nx 10GE/OTU2,
or 40GE/OTU3
or 100GE/OTU4
69
ADM ADM
Lit Building
ADM
Lit Building
ADMDCX DCS
ADMSTM16, STM64
SNCP
ADM
Lit Building
ADM
STM4 / STM16
SNCP
Lit Building
ADM
ADM
ADMSTM4, STM16
SNCP
STM4, STM16
SNCP
STM4, STM16
SNCP
STM1, STM4
MSP 1+1
STM1 1+1
STM1 1+1
Voice
Switch
Voice
Switch
Central Office 1
Central Office 2
Central Office 3
Existing SDH and DCX Infrastructure
70
ADM ADM
E1 End-to-End Migration de-loading DCX
Lit Building
ADM
Lit Building
ADMDCX DCX
ADMSTM4, STM16
SNCP
ADM
Lit Building
ADM
Lit Building
ADM
ADM
ADM
STM4, STM16
MSP 1+1
STM1 1+1 STM1 1+1
Voice
Switch
Voice
Switch
Vz Metro MPLS
Transport
STM4, STM16
SNCP
STM4, STM16
SNCP
STM4, STM16
SNCP
STM4, STM16
SNCP
900 900
Central Office 1 Central Office 2
Central Office 2
MPLS-based Transport
71
DCX and Inter-Office ADM Replacement
Lit Building
ADM
Lit Building
ADM
ADMSTM16 / STM64
SNCP
ADM
Lit Building
ADM
Lit Building
ADM
ADM
ADM
STM4/STM16
MSP 1+1
STM 1+1 STM 1+1
Voice
Switch
Voice
Switch
Vz Metro MPLS
Transport
STM4/STM16
SNCP
STM4/STM16
SNCP
STM4/STM16
SNCP
STM4/STM16
SNCP
900 900
Central Office 1 Central Office 2
Central Office 2
MPLS-based Transport
72
STM1 1+1STM1 1+1
Lit Building
ADM
Lit Building
ADMDCS DCS
ADMSTM16/STM64
SNCP
ADM
Lit Building
ADM
STM4/STM16
SNCP
Lit Building
ADM
ADM
ADMSTM4/STM16
SNCP
STM4/STM16
SNCP
STM4/STM16
SNCP
STM4/STM16
MSP 1+1
Voice
Switch
Voice
Switch
ADM ADM
Central Office 1
Central Office 2
Central Office 3
Aggregation of Legacy SNCP Access RingsCentral Office x
A1
Z1A2
Z2
ADM
73
Lit Building
ADM
Lit Building
ADMDCS DCS
ADMSTM16/STM64
SNCP
ADM
Lit Building
ADM
Lit Building
ADM
ADM
STM4/STM16
MSP 1+1
STM1 1+1 STM1 1+1
Voice
Switch
Voice
Switch
Aggregation of Legacy UPSR Access Rings
90x
STM4/STM16
SNCP
STM4/STM16
SNCP
STM4/STM16
SNCP
STM4/STM16
SNCP
ADM ADM
Central Office 1Central Office 2
Central Office 2
ADM
Central Office x
90x
A1
Z190x
A2
Z2
MPLS-based Transport
74
Lit Building
ADM
Lit Building
ADMDCS DCS
ADMSTM16/STM64
SNCP
ADM
Lit Building
ADM
Lit Building
ADM
ADM
STM4/STM16
MSP 1+1
STM1 1+1 STM1 1+1
Voice
Switch
Voice
Switch
Aggregation of Legacy UPSR Access Rings
90x
STM4/STM16
SNCP
STM4/STM16
SNCP
STM4/STM16
SNCP
STM4/STM16
SNCP
ADM ADM
Central Office 1Central Office 2
Central Office 2
ADM
Central Office x
90x
A1
Z190x
A2
Z2
MPLS-based Transport
75
Lit Building
ADM
Lit Building
ADMDCS DCS
ADMSTM16/STM64
SNCP
ADM
Lit Building
ADM
Lit Building
ADM
ADM
STM1 1+1 STM1 1+1
Voice
Switch
Voice
Switch
… repeat for all UPSR Rings
90x
STM4/STM16
SNCP STM4/STM16
SNCP
ADM ADM
Central Office 1Central Office 2
Central Office 2
Central Office x
90x
90x
MPLS-based Transport
76
Lit Building
ADM
Lit Building
ADMDCS DCS
ADMSTM16/STM64
SNCP
ADM
Lit Building
ADM
Lit Building
ADM
ADM
STM1 1+1 STM1 1+1
Voice
Switch
Voice
Switch
… new Buildings use Modernized Approach
STM4/STM16
SNCP STM4/STM16
SNCP
ADM ADM
Central Office 1Central Office 2
Central Office 2
Central Office x
90x
10GE/OTU2
MPLS90x
NEW Lit Building
90x
NEW Lit Building
90x
90x
NEW Lit Building
90x
MPLS-based Transport
77
4200 4200
Lit Building
ADM
Lit Building
ADM
Lit Building
ADM
Lit Building
ADM
Voice
Switch
Voice
Switch
Putting it all together
STM4/STM16
SNCP STM4/STM16
SNCP
Central Office 1Central Office 2
Central Office x
90x
10GE/OTU2
MPLS90x
NEW Lit Building
90x
NEW Lit Building
90x
90x
NEW Lit Building
90x
MPLS-based Transport
78
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81