Transcript
Infrastructure and content are two different businesses Clear split for effective transport/service is a must
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OpEx and scalability are driving forces for carrier Ethernet market
TCO
Cost pressure is here and it’s real
+
IP/MPLS
Stripped routers
Ethernet
Hybrid
PBB-TE/T-MPLS
SDH
-
-
Maximize scalability
--+
Bandwidth boom (video, VPN)
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Carrier Ethernet Transport (CET) and Multilayer Optimization (MLO) New approach for the way we see the network
Carrier Ethernet Transport (CET) network scheme
Subscriber/Service Access Metro Aggregation Edge Core
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Multilayer optimization (MLO) means more balance among Layers
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A real network study for MLO + CETConclusion
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PBB-TE market/vendors are very active
Carrier Ethernet Transport is originally designed for transport
Criterion
Scalability
Multiservice
Quality
Cost effective
Characteristics
Low High
Low High
Low High
Low High
PBB/PBB-TE
MPLS
Comments
Native and seamless Ethernet port at any bit rate (100G soon)
Any traffic over scalable trunks starting at access (zero interworking)
Unified SLA monitoring (8021ag), unique id per tunnel
Both CAPEX and OPEX
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Carrier Ethernet Transport is cost OPEX effective
Criterion
Complexity
Connection
Determinism
Power
Characteristics
Low
Connection oriented
Static
Low
SDH
PBB/PBB-TE
MPLS
High
Connectionless
Dynamic
High
Comments
Build-in traffic engineering vs managed control plane, advanced OAM
Transport nature is static, backbone connectivity has little changes
Amount of software, features and complexity
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Turning Ethernet to “carrier grade” technology
Bandwidth allocation and optimization
Flexible SLA
Hierarchical shaping: per subscriber, per service
Deterministic and secure traffic engineering
IEEE 8021ag
SLA monitoring
99999.00%
Hardware redundancy
Inter-card LAG
HSO
Pay-as-you-grow architecture
Port density and capacity
# of subscribers and services
50mSec resiliency, ERP
Local and global protection
ISSU
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PBB-TE is a scalable technologyPBB-TE service mapping internally
Subscriber Access Carrier Ethernet Switch Environment Node
NTE SAP {Port 1} I-SID 1 SAP
{B-SA, B-DA, B-VID}
{Port 2, S-VLAN 3}
I-SID 2
NTE
{Port 2, S-VLAN 4}
MSAN
NTE SAP I-SID 3
{Port 2, S-VLAN 5, C-VLAN 6}
NTE
All mapping combinations for SAP at the UNI
One or more service instances (I-SIDs) are mapped to a PBB-TE trunk
The C-VLAN and S-VLAN are carried in the MAC-in-MAC encapsulation
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Few use cases
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Use cases Co-existence of PBB and PBB-TE brings optimal cost and performance
Residential services Enterprise services
High speed internet (HSI)
IPTV E-Line (point-to-point)
VoD E-Tree (point-to-multipoint)
E-LAN (multipoint-to-multipoint)
TDM
Voice
Network management
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Intra-metro E-LAN use case
PBB for E-LAN services
Inherent multicast in Ethernet network
Ethernet Ring Protection (ERP) for 50m resiliency
Separating subscriber and operator (MAC) addresses
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High speed internet use case
PBB for E-LAN
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Inter-metro E-Line use case
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