ethernet oam role in broadband and mobile
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© 2009 IP Infusion Inc. All rights reserved.
ETHERNET OAM role in Broadband and Mobile BackhaulBBWF – 2010, Oct 25st – 28th
By Asif Hazarika at Booth E10Email: asifh@ipinfusion.com
© 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
© 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
© 2009 IP Infusion Inc. All rights reserved.
What is happening?
4Confidential
GROWTH DRIVERS
Global IPTV subscription65 million by 201252% growthFrom 1.3M households (2008) worldwide Internet usage will grow two folds every year!
Mobile BBBase Stations:IDC predicts over 3 M base stations (24.3%)Cell Sites1.8 Mcell sites (10.7%) by 2012
© 2009 IP Infusion Inc. All rights reserved.
2010-Q2 Telecom Equipment – by Segment
6.1%
27%
73%
© 2009 IP Infusion Inc. All rights reserved.
IP/MPLS
Broadband Backhaul evolution – all IP
6
Metro Network
FTTX
DSLWeb-
servers
CARRIER ETHERNETEDGE NODES
Provider Network
ETHERNET
POP• CFM• PBB, PB• PBB-TE• OAM• MPLS-TP• Layer 3 IPv4, IPv6• Resiliency• High Availability
ACCESS NETWORK
ISP
VDSL
MPLS/Ethernet MOVING TOWARDS ACCESS
EDGE NODES
© 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
© 2009 IP Infusion Inc. All rights reserved.
Mobile Backhaul Evolution
8
CoreNet--work
RNC
BSC
3G
4G
LTE
TDM
Ethernet
ATM
Ethernet
RNC
ETHERNET or IP/MPLSNETWORK
MPLS /CARRIER ETHERNET MOVING TOWARDS ACCESS
EDGE NODES
EDGE NODES EDGE NODES
Mobile AggregationSite Gateway
Ethernet
TDM-Tunnel
ATM -TunnelBTS
Node B
Node B
enode B
AggregationNetworks
Microwave,DSL,
GPONEthernet
Fiber
MOBILE BACKHAUL NETWORK
Base Station Tranciever
MME
Access Network
MGW
SSGN
UNI
MEF Service OAMCFM/ 802.1ag
EDGE NODES
2G
MTSO• CFM• PBB, PB• PBB-TE• OAM• MPLS-TP• Layer 3 IPv4, IPv6• Resiliency• High Availability
© 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
© 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
© 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 SegmentOAM
SegmentOAM Segment
E2E OAM
© 2009 IP Infusion Inc. All rights reserved.
Ethernet OAM types
12
LINK OAM
TUNNEL OAMSERVICE OAM
UNI/AN
UNI/AN
UNI/AN
MSC
ETHERNET OAM LAYERS
© 2009 IP Infusion Inc. All rights reserved.
All-IP RAN
13Confidential
Aggregation RIng
TO Metro RingMobile OperatorNWk
Aggregation RIngBase Stations
G8032
EFM, LACP
Radio Access Network
CFM, LACpCFM
CCM Messages,
CCM Messages,Loopback TestDelay measurements
MOBILE BACKHAUL
E-LAN/E-LINE SERVICE
© 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)
Otherso 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
© 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
15Confidential
© 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
© 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
CarrierEthernet
Customer Edge
ProviderEdgeUNI
DemarcationDevice
© 2009 IP Infusion Inc. All rights reserved.
Back Haul Aggregation
Network CarrierEthernet
Base StationCarrier
Ethernet
Carrier Ethernet
18
Aggregation Network Carrier
EthernetCustomer Edge
Core Network Carrier
Ethernet
Service Provider Network
Customer Edge
Broadband
Access Network Carrier
EthernetMTUs
802.1ahProvider BackboneBridging, 802.1ag CFM
802.1adProvider BridgingMobile
802.1ahProvider BackboneBridging
802.1ag CFM
802.1adProvider Bridging802.3ah EFM G.8031, G.8032
E-LAN Services
MEF
ProviderEdge
Challenges : Configuring and ProvisioningTiming SynchronizationService – Integrated Solution for management
E_LINE/E-TREE SVCS
© 2009 IP Infusion Inc. All rights reserved. 19
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
© 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
© 2009 IP Infusion Inc. All rights reserved.
Thank You !
21
© 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
© 2009 IP Infusion Inc. All rights reserved. 23
Carrier Ethernet
o IEEE 802.1ad Provider Bridgingo 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 Ethernetso IEEE 802.1ah Provider Backbone Bridging (PBB)o IEEE 802.1Qay Provider Backbone Bridging – Traffic Engineering
(PBB-TE)o Linear/Ring Protection - ITU-T 8031/8032o IEEE P802.1AE MAC-SECo IEEE 1588v2 , Sync-E , 802.1ASo In Draft
o 802.1Qbf – PBB-TE Infra. Segment Protectiono 802.1Qbc – Provider Bridging – Remote Customer Interfaces
© 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
© 2009 IP Infusion Inc. All rights reserved.
Replacement SDH and TDM
25
Function CO Ethernet Sonet SDH
Fault Management:Tunnel Layer
Service (EVC) LayerLink (physical ) Layer
ITU-T Y.1731 / IEEE 802.1agITU-T Y.1731 / IEEE 802.1ag
IEEE 802.3ah
STS Path / VCGVT1.5 or STS Path
SONET Line
Link and Path Protection
1:1 Link Agg (802.3ad)G.8031/G.8032
1 + 1 Resiliency
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