Transcript Connection-Oriented Ethernet for Mobile Backhaul Networks

Connection-Oriented Ethernet
for Mobile Backhaul Networks
Ralph Santitoro
Carrier Ethernet Market Development
[email protected]
© Copyright 2009 Fujitsu Network Communications. All Rights Reserved.
Heavy Reading Packet-Optical Transport Evolution – May 19, 2009 - NYC
Contents
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Mobile Operator Business Challenges
Mobile Backhaul Provider Challenges
What is Connection-Oriented Ethernet (COE) ?
COE Attributes
Mobile Backhaul Technology Migration
Summary
© Copyright 2009 Fujitsu Network Communications. All Rights Reserved.
Heavy Reading Packet-Optical Transport Evolution – May 19, 2009 - NYC
Mobile Backhaul Business Drivers
Challenges facing Mobile Operators
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2 year subscriber service contracts
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Data rate grows with 3G and beyond but revenue doesn’t follow
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Flat rate data plans
Network Operations
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Locks subscribers into a given technology
Subscriber cancellation penalties
ROI on subsidized smartphone
How do you ensure backhaul network provides uninterrupted service to
millions of subscribers served by 50,000+ cell towers ?
Number of years to upgrade all cell towers with new
technology
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Tremendous pressure to make the right choice while
achieving ROI/margin objectives
Many business issues affect technology selection
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© Copyright 2009 Fujitsu Network Communications. All Rights Reserved.
Heavy Reading Packet-Optical Transport Evolution – May 19, 2009 - NYC
Challenges facing Mobile Backhaul
Providers
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Retraining of network operations personnel
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Which technology do I pick given the eventual
migration to Ethernet ?
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Should I use Ethernet with Circuit Emulation?
Should I use an integrated SONET/Ethernet (P-ONP) approach ?
< 3 year service contracts with mobile operators
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A SONET transport engineer cannot become a data
engineer overnight
How can I make an acceptable ROI to meet margins objectives ?
How can I meet Mobile Operators’ stringent SLA requirements ?
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Delay, Jitter, Loss, Availability
Introducing Connection-oriented Ethernet for Mobile Backhaul....
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© Copyright 2009 Fujitsu Network Communications. All Rights Reserved.
Heavy Reading Packet-Optical Transport Evolution – May 19, 2009 - NYC
What is Connection-Oriented Ethernet (COE)?
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Provides explicit EVC paths across the network
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Disables Ethernet MAC address learning and flooding
 Explicit paths provide deterministic QoS
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Reserves bandwidth for each EVC per CoS
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Traffic management provided per EVC per CoS
Connectionless Ethernet Bridges
Ethernet over SONET
• Good Aggregation / Statistical multiplexing
• Non-deterministic QoS
• No Bandwidth Reservation
• Long (>200ms) protection/restoration times
• No Aggregation / No Statistical Multiplexing
• Deterministic QoS
• Bandwidth Reserved in each STS
• Short (sub-50ms) protection/restoration times
Connection-Oriented Ethernet
MSPP
Packet
ONP
• Good Aggregation / Statistical Multiplexing
• Deterministic QoS
• Bandwidth reserved per EVC
• Short Sub 50ms protection/restoration times
COE combines the best attributes of Ethernet Bridges and EoS
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© Copyright 2009 Fujitsu Network Communications. All Rights Reserved.
Heavy Reading Packet-Optical Transport Evolution – May 19, 2009 - NYC
Attributes of Connection-oriented Ethernet
Deterministic QoS
• 802.1ag / Y.1731 / MEF 10 PMs
• Delay, Delay Variation, Loss, Availability
• Resource Reservation through CAC
Availability
Scalability
• G.8031 50ms Linear Path Protection
• 802.3ad Link Aggregation (LAG)
• Millions of EVCs
• Aggregation and stat-muxing
• Oversubscription
COE
Attributes
Service Management
Standardized Services
• 802.3ah Link Fault Mgmt.
• 802.1ag/Y.1731 EVC Fault Mgmt.
• EPL, EVPL, EP-Tree, EVP-Tree
• MEF 6, MEF 10
Security
• Bridging disabled - no L2CP vulnerabilities
• L2CP threats mitigated
• No MAC table overflows
COE is a high performance implementation of MEF Carrier Ethernet
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© Copyright 2009 Fujitsu Network Communications. All Rights Reserved.
Heavy Reading Packet-Optical Transport Evolution – May 19, 2009 - NYC
Mobile Backhaul Technology Migration
…on the road to Ethernet
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2G traffic growth very small so T1 MRC is essentially flat
What do you do with high growth 3G traffic?
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Some Base Stations can be upgraded to Ethernet
COE over SONET or COE over Fiber choices
Bandwidth
Compelling case to keep 2G traffic on TDM
3G/4G
Data
Voice +
2G Data
If you are a Wireline LEC or MSO with a SONET infrastructure
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Time
COE over SONET: Simple and most bandwidth efficient for data services
COE provides aggregation and statistical multiplexing of data traffic
Legacy, low growth 2G services remain on TDM
For Ethernet over Fiber infrastructures must consider MEF 22 GIWF:
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Generic Interworking Function: Non-Ethernet  Ethernet (via Circuit Emulation)
Clock Synchronization
2G BS
T1s (TDM)
T1s
ATM over T1s
3G BS MLPPP over T1s GIWF Ethernet
Ethernet
4G BS
Ethernet
SONET
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COE over SONET
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COE over Fiber
Hub site or
Mobile
Switching
Center
3G backhaul more challenging because it is transitional
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© Copyright 2009 Fujitsu Network Communications. All Rights Reserved.
Heavy Reading Packet-Optical Transport Evolution – May 19, 2009 - NYC
Summary
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Different Business Drivers and Challenges for Mobile Operators
& Mobile Backhaul Providers impact their migration to Ethernet
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Connection-Oriented Ethernet (COE) combines the best
attributes of Connectionless Ethernet and Ethernet over SONET
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COE is a high performance implementation of MEF-defined
Carrier Ethernet
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COE facilitates the migration of Mobile Backhaul Networks from
SONET to Ethernet
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© Copyright 2009 Fujitsu Network Communications. All Rights Reserved.
Heavy Reading Packet-Optical Transport Evolution – May 19, 2009 - NYC
THE POSSIBILITIES ARE INFINITE
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Confidential - AFS and Fujitsu use Only
Heavy Reading Packet-Optical Transport Evolution – May 19, 2009 - NYC