Learn how Ethernet OAM plays a critical role in mobile backhaul and broadband.

1. © 2009 IP Infusion Inc. All rights reserved.
ETHERNET OAM role in Broadband and Mobile
Backhaul
BBWF – 2010, Oct 25st – 28th
By Asif Hazarika at Booth E10
Email: asifh@ipinfusion.com

2. © 2009 IP Infusion Inc. All rights reserved.
Topics to be discussed
 Market
 Carrier Ethernet
 Mobile and Broadband Backhaul ?
 Ethernet OAM
 Ethernet OAM in BH
 Conclusions

3. © 2009 IP Infusion Inc. All rights reserved.
Worldwide User Growth
 Total world population 2009: 6,789,627,419
 Internet users in 2000: 360,985,492
 Internet users in 2009: 1,663,770,408
 Penetration worldwide: 24.5%
 2000-2009 growth: 360.9%
 Exploding bandwidth needs, driven by mobile-wireless
and broadband services
 What about revenue?
3Confidential
• Source: Internetworldstats.com

4. © 2009 IP Infusion Inc. All rights reserved.
What is happening?
4Confidential
GROWTH
DRIVERS
Global IPTV subscription
65 million by 2012
52% growth
From 1.3M households (2008) worldwide
Internet usage will grow two folds every year!
Mobile BB
Base Stations:
IDC predicts over 3 M base stations (24.3%)
Cell Sites
1.8 Mcell sites (10.7%) by 2012

5. © 2009 IP Infusion Inc. All rights reserved.
2010-Q2 Telecom Equipment
– by Segment
6.1%
27%
73%

6. © 2009 IP Infusion Inc. All rights reserved.
IP/MPLS
Broadband Backhaul evolution – all IP
6
Metro
Network
FTTX
DSL
CARRIER ETHERNET
EDGE NODES
Provider Network
ETHERNET
• CFM
• PBB, PB
• PBB-TE
• OAM
• MPLS-TP
• Layer 3 IPv4, IPv6
• Resiliency
• High Availability
ACCESS NETWORK
VDSL
MPLS/Ethernet MOVING TOWARDS ACCESS
EDGE NODES

7. © 2009 IP Infusion Inc. All rights reserved.
LTE requirements
 Long Term Evolution /
WiMAX / 3GPP
 Packet Based / all-IP
RAN
 Quality of Service
 Carrier Ethernet OAM
 Synchronization
 Imperatives
 Resiliency
 Low cost per bit
 Security
 Bandwidth
7

8. © 2009 IP Infusion Inc. All rights reserved.
Mobile Backhaul Evolution
8
Core
Net-
-work
3G
4G
LTE
TDM
Ethernet
ATM
Ethernet
ETHERNET or IP/MPLS
NETWORK
MPLS /CARRIER ETHERNET MOVING TOWARDS ACCESS
EDGE NODES
EDGE NODES EDGE NODES
Mobile Aggregation
Site Gateway
Ethernet
TDM-Tunnel
ATM -TunnelBTS
Node B
Node B
enode B
Aggregation
Networks
Microwave,
DSL,
GPON
Ethernet
Fiber
MOBILE BACKHAUL NETWORK
Base Station Tranciever
Access Network
UNI
MEF Service OAM
CFM/ 802.1ag
EDGE NODES
2G
MTSO
•CFM
• PBB, PB
• PBB-TE
• OAM
• MPLS-TP
• Layer 3 IPv4, IPv6
• Resiliency
• High Availability

9. © 2009 IP Infusion Inc. All rights reserved.
Drivers and Challenges for
Carrier Ethernet
 Cost and Simplicity
 Packet based connection oriented service
 Features like OAM and QOS required
 It will reduce their OPEX and CAPEX
 Simplified equipment
 Simplified provisioning
 Simplified protection
 Challenges
 Provisioning and end-to-end network management
 Connection Orientation
 Supporting carriers’ 99.999% or 99.9999% uptime requirements
by providing high-availability features
 Fault management
 50 ms recovery
9

10. © 2009 IP Infusion Inc. All rights reserved.
OAM
 Attributes of SONET - OAM
 Fault Monitoring/Detection
 Alarms
 Service Restoration/APS (50ms)
 Fault location and repair
 FCAPS (Fault, Configuration, Accounting, Performance, Security)
 Attributes of E-OAM as a goal to match SONET
 Performance Monitoring
 Fault Detection > Failures > SLA, Link Failure, Transport
 Protection (ERPS or ELPS)
 Fault Notification, Verification
 Fault Isolation
 Repair, Repair Verification
10Confidential

11. © 2009 IP Infusion Inc. All rights reserved. 11
OAM model
11
 Carrier Ethernet OAM
 End-to-end and per carrier monitoring
 MEP (Maintenance End-points) define the OAM segment, each is independent
 Recovery is between OAM end-points
 MIP (Maintenance Intermediate Points)
MEP
MEP MEP
MEPMEP MEP
MIP MIP MIP
MIPMIPMIPMIP
OAM Segment
OAM
Segment
OAM Segment
E2E OAM

12. © 2009 IP Infusion Inc. All rights reserved.
Ethernet OAM types
12
LINK OAM
TUNNEL OAM
SERVICE OAM
UNI/
AN
UNI/
AN
UNI/
AN
MSC
ETHERNET OAM LAYERS

13. © 2009 IP Infusion Inc. All rights reserved.
All-IP RAN
13Confidential
Aggregation RIng
TO
Metro Ring
Mobile Operator
NWk
Aggregation RIng
Base Stations
G8032
EFM, LACP
Radio Access Network
CFM, LACp
CFM
CCM Messages,
CCM Messages,
Loopback Test
Delay
measurements
MOBILE BACKHAUL
E-LAN/E-LINE SERVICE

14. © 2009 IP Infusion Inc. All rights reserved.
What is required?
 Fault Management
 ITU-T Y.1731 OAM Functions and Mechanisms for Ethernets
 IEEE 802.1ag Connectivity Fault Management (CFM)
 Ethernet Protection - Linear and Ring
 Linear/Ring Protection - ITU-T 8031/8032
 Link Aggregation, Spanning Tree
 EFM
 IEEE 802.3ah Ethernet to the First Mile (EFM)
 Others
o IEEE 802.1ah Provider Backbone Bridging (PBB)
o IEEE 802.1Qay Provider Backbone Bridging – Traffic Engineering
(PBB-TE)
o Newer upcoming Standards
o 802.1Qbf – PBB-TE Infra. Segment Protection
14Confidential

15. © 2009 IP Infusion Inc. All rights reserved.
Y1731
 OAM PDUs
 Encapsulation of PDUs in Ethernet
 Applications
 PBB/Ethernet OAM
 MPLS-TP OAM
 CCV
 Continuity Check
 Remote defect indication
 Packet loss measurement
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16. © 2009 IP Infusion Inc. All rights reserved.
802.1ag (CFM) / 802.3ah (EFM)
 802.1ag area of interest
 Path discovery - Linktrace
 Fault detection – Continuity Checks + verify unintended
connections (CCMs- multicasted)
 Fault verification and isolation - Loopback checks (LBMs –
unicast)
 Fault notification – administrative message based on CCMs
 Fault recovery - STP, LACP
 Performance Measurement – Y.1731
 802.3ah area of interest in EOAM
 Remote Failure Indication
 Remote Loopback
 Link Monitoring
 Fault detection
 Fault notification
16Confidential

17. © 2009 IP Infusion Inc. All rights reserved.
MEF Carrier Ethernet
 MEF 2
 Service Protection
 MEF 11
 UNI
 MEF 13
 UNI Type 1 implementation
 MEF 16
 E-LMI
 MEF 17
 Service OAM Framework and
Requirements
 MEF 20
 UNI Type 2 implementation
17
Carrier
Ethernet
Customer
Edge
Provider
EdgeUNI
Demarcation
Device

18. © 2009 IP Infusion Inc. All rights reserved.
Back Haul
Aggregation
Network Carrier
Ethernet
Base Station
Carrier
Ethernet
Carrier Ethernet
18
Aggregation
Network
Carrier
Ethernet
Customer
Edge
Core Network
Carrier
Ethernet
Service
Provider
Network
Customer
Edge
Broadband
Access
Network
Carrier
Ethernet
MTUs
802.1ah
Provider Backbone
Bridging,
802.1ag CFM
802.1ad
Provider BridgingMobile
802.1ah
Provider Backbone
Bridging
802.1ag CFM
802.1ad
Provider Bridging
802.3ah EFM
G.8031, G.8032
E-LAN Services
MEF
Provider
Edge
Challenges : Configuring and Provisioning
Timing Synchronization
Service – Integrated Solution for management
E_LINE/E-TREE SVCS

19. © 2009 IP Infusion Inc. All rights reserved.
What does IP Infusion fit into
the picture?
 IP infusion is a provider of embedded communication
software solutions for Next Generation Networks
equipment.
 Protocol stacks for Next Generation Technologies -
Carrier Ethernet, Virtual Private Services, Multicast and
also MPLS, GMPLS, BFD, VCCV, PW, MS-PW, and
High Availability
 Implements well tested Carrier Ethernet stacks including
OAM
 Offer Integrated solution CE with Management with Tail-f
 Fast time to deployment
 MEF and GMPLS functionality available
 ASSURED! Quality through extensive testing through its
3 world-wide labs in USA, China and India
19

20. © 2009 IP Infusion Inc. All rights reserved.
Summary
 Bandwidth demand, costs, required bandwidth
granularities for services, provisioning and OAM are
driving providers to upgrade their networks to NGNs
 Wireless backhaul networks will get the much needed
upgrade. Carrier Ethernet is essential to the
transformation to Next Generation Networks
 Reliability, interoperability and testing - Cost, resource
and Time challenge
 Can be reduced by sharing through IOT and certification facility
 NGNs - MPLS and Carrier will co-exist deriving from
each other’s strengths in the Access and the Core
20

21. © 2009 IP Infusion Inc. All rights reserved.
Thank You !
21

22. © 2009 IP Infusion Inc. All rights reserved.
Requirements of an Ethernet based backhaul
network differ from Carrier ethernet networks?
 Ethernet based Backhaul Networks have the same
characteristics as Carrier Ethernet networks except the
additional requirements to handle QOS and
Synchronization
22

23. © 2009 IP Infusion Inc. All rights reserved. 23
Carrier Ethernet
o IEEE 802.1ad Provider Bridging
o IEEE 802.1ab Link Layer Discovery Protocol (LLDP)
o IEEE 802.1ak Multiple Registration Protocol (MRP)
o IEEE 802.3ah Ethernet to the First Mile (EFM)
o IEEE 802.1ag Connectivity Fault Management (CFM)
o ITU-T Y.1731 OAM Functions and Mechanisms for Ethernets
o IEEE 802.1ah Provider Backbone Bridging (PBB)
o IEEE 802.1Qay Provider Backbone Bridging – Traffic Engineering
(PBB-TE)
o Linear/Ring Protection - ITU-T 8031/8032
o IEEE P802.1AE MAC-SEC
o IEEE 1588v2 , Sync-E , 802.1AS
o In Draft
o 802.1Qbf – PBB-TE Infra. Segment Protection
o 802.1Qbc – Provider Bridging – Remote Customer Interfaces

24. © 2009 IP Infusion Inc. All rights reserved.
Carrier Grade, Connection
Oriented Ethernet
 Carrier Grade efforts
 High Availability and OAM
 Ethernet OAM
 802.1ag Connectivity Fault Management
 802.Qaw Management of Data Driven and Data Dependent Faults
 ITU Y.1731 OAM Functions and Mechanisms for Ethernets
 802.1Qbf – PBB-TE Segment protection
 Ethernet linear and ring protection mechanisms (ITU-T 8031/8032)
 Providing the same 99.9999% reliability as legacy networks
 Time synchronization
 Synchronous Ethernet
 ITU-8261/8262
 IEEE 1588
 Provider Bridging
 802.1ad - Provider Bridging
 802.1ah– Provider backbone bridging
 802.1Qay – PBB-TE
 Inter-op and Certification
24

25. © 2009 IP Infusion Inc. All rights reserved.
Replacement SDH and TDM
25
Function CO Ethernet Sonet SDH
Fault Management:
Tunnel Layer
Service (EVC) Layer
Link (physical ) Layer
ITU-T Y.1731 / IEEE 802.1ag
ITU-T Y.1731 / IEEE 802.1ag
IEEE 802.3ah
STS Path / VCG
VT1.5 or STS Path
SONET Line
Link and Path
Protection
1:1 Link Agg (802.3ad)
G.8031/G.8032
1 + 1 Resiliency