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  • 2012 Cisco and/or its affiliates. All rights reserved. BRKSPG-2111 Cisco Public

    The NGN Carrier Ethernet System Technologies, Architectures and Deployment Models

    2

  • 2012 Cisco and/or its affiliates. All rights reserved. BRKSPG-2111 Cisco Public

    The NGN Carrier Ethernet System

    NGN Carrier Ethernet System Architecture Overview

    The Context of Broadband Forums TR-101

    NGN Carrier Ethernet System Architecture Details

    Building Blocks and Variants

    Service Delivery Models

    Network-based High Availability

    MPLS-TP-based Aggregation

    Scaling with Unified MPLS

    Network Virtualization (nV) Technology

    Summary

    Q and A

    Agenda

    3

  • 2012 Cisco and/or its affiliates. All rights reserved. BRKSPG-2111 Cisco Public

    NGN Carrier Ethernet System

    Architecture Overview

    4

  • 2012 Cisco and/or its affiliates. All rights reserved. BRKSPG-2111 Cisco Public

    63 EB per mo

    20 EB per mo

    Entering the Zettabyte Era Global IP traffic will increase 4-fold from 2010 to 2015

    81 EB per mo

    50 EB per mo

    38 EB per mo

    28 EB per mo

    Source: Cisco Visual Networking Index (VNI) Global IP Traffic Forecast, 20102015

    2010 2011 2012 2013 2014 2015

    5

  • 2012 Cisco and/or its affiliates. All rights reserved. BRKSPG-2111 Cisco Public

    Circuit to Packet Migration

    Massive change in SP traffic make-up in next 5 years*

    SP revenue shifting from circuits to packet services**

    5 yrs ~80% revenue derived from packet services

    Packet traffic increasing at 34% CAGR***

    *ACG Research 2011, ** Cisco Research 2010, ***Cisco VNI 2011

    90+% IP Traffic

    Private Line TDM/OTN Traffic

    Private/Public IP Traffic

    2011

    ~30-50%

    ~50-70%*

    2013 2016

    Private Line TDM/OTN Traffic

    Private Line TDM/OTN Traffic

    20-30% 010%

    Private/Public IP Traffic

    Private/Public

    IP Traffic

    70-80% 90+%

    Legacy TDM Traffic

    6

  • 2012 Cisco and/or its affiliates. All rights reserved. BRKSPG-2111 Cisco Public

    Subscriber

    Business

    Corporate

    Residential

    ATM Aggregation

    Edge Core Access

    Policy and Service Control Plane (per subscriber)

    SDH

    Mobile

    Optical

    L2SW

    L2SW L2SW

    L2SW

    L2SW

    L2SW

    L1SW

    SW

    L1SW

    L1SW

    L2SE

    OLT

    DSLAM L2SE

    L2SE

    L2SE

    L2SE L3SE

    L3SE

    BNG

    L2SE

    L0SW L0SW L0SW L0 W

    Aggregation Edge Boundary

    Access Aggregation Boundary

    Ethernet Aggregation

    MPLS Ethernet Aggregation

    ATM/FR networks capped and to be closed

    SONET/SDH evolving to MPLS Ethernet and OTN

    Access and Edge optimized for MPLS

    Ethernet

    Service Provider Networks Evolution to

    Ethernet and

    MPLS

    7

  • 2012 Cisco and/or its affiliates. All rights reserved. BRKSPG-2111 Cisco Public

    Cisco Carrier Ethernet Transport Architecture Technical Innovations

    IPoDWDM Optical Network

    Aggregation Node

    Aggregation Network MPLS/IP

    Carrier Ethernet Aggregation Access Edge

    Aggregation Node

    Aggregation Node

    Ethernet Node

    STB

    VoD

    Content Network

    TV SIP

    PON Node

    DSLNode

    Core Nodes

    VoD

    Content Network

    TV SIP

    Multiservice Core

    Core Network IP / MPLS Distribution

    Node

    Corporate

    Business

    Corporate

    Business

    Residential

    STB

    Residential

    Aggregation Node

    Distribution Node

    Mobile

    2G/3G/4G Node

    RAN Access Network MPLS/IP

    Corporate

    Business

    BSC/RNC

    BSC/RNC

    MPLS-based transport with MPLS-TP option

    Cisco ASR9000, ASR1000, ASR 903, ASR 901,

    Cisco Carrier Packet Transport , CPT50, -200, -600

    Flexible Ethernet Edge

    Ubiquitous Ethernet UNI across different product lines and OSs

    Flexible Options for Subscriber Awareness

    Distributed Edge, Centralized Edge, ISG for IPv4/IPv6

    Intelligent transport of video

    PIM Optimizations, MoFRR, TI-MoFRR, integrated video

    caching, Video Quality Monitoring

    8

  • 2012 Cisco and/or its affiliates. All rights reserved. BRKSPG-2111 Cisco Public

    L2 MPLS Transport

    Two technologies for L2 transport over MPLS:

    Ethernet over MPLS (EoMPLS)

    Used for L2 point-to-point link over MPLS cloud

    No MAC learning involved

    Virtual Private LAN Services (VPLS)

    Used for multipoint L2 connections

    Collection of pseudowires tied together by a Virtual Forwarding Interface (VFI)

    MAC addresses learned on VFI

    Traffic forwarding based on destination MAC addresses

    H-VPLS, an extension of VPLS

    Ethernet VPN is a new technology for NGN L2VPN Services (not described in this breakout!)

    9

  • 2012 Cisco and/or its affiliates. All rights reserved. BRKSPG-2111 Cisco Public

    MPLS

    EoMPLS Overview

    MPLS in the aggregation network and core

    Targeted LDP session between PEs to exchange VC label

    Tunnel label is used to forward packet from PE to P to PE

    VC label is used to identify L2VPN circuit

    Attachment Circuit (AC) can be port-based or VLAN-based (or Ethernet Flow Point based, see later)

    Pseudowire

    Aggregation Node

    P Aggregation

    Node

    Access Node FTTB CPE

    Access Node FTTB CPE

    LDP LDP

    Targeted LDP

    Attachment Circuit Attachment Circuit

    P

    Tunnel label

    Ethernet PDU

    VC label

    Ethernet PDU

    Ethernet PDU

    10

  • 2012 Cisco and/or its affiliates. All rights reserved. BRKSPG-2111 Cisco Public

    VPLS (Virtual Private LAN Services)

    Attachment Circuit (AC)Connection to Aggregation using an Ethernet VLAN

    Virtual Circuit (Pseudowire)EoMPLS tunnel between PEs using a full mesh

    Virtual Forwarding Instance (VFI)A virtual L2 bridge instance that connects ACs to VCs (PWs);

    VFI=VLAN=broadcast domain

    RFC4761 (BGP-signalled) and RFC4762 (LDP Signalled)

    Enhanced with BGP based Autodiscovery (RFC6074)

    Scalability issues almost solved via H-VPLS and state-of-the-art NPU technology (2M MAC address/chip)

    Aggregation

    Node

    MPLS

    Core

    VFI

    VFI

    VFI

    Attachment

    Circuit

    Ethernet Port

    or VLAN

    Virtual Forwarding

    Instance

    Eompls Virtual Circuit

    (Pseudowire)

    Aggregation

    Node

    Aggregation

    Node

    Access Node Access Node

    11

    http://tools.ietf.org/html/rfc4761http://tools.ietf.org/html/rfc4762http://tools.ietf.org/html/rfc6074

  • 2012 Cisco and/or its affiliates. All rights reserved. BRKSPG-2111 Cisco Public

    IETF MPLS-TP

    MPLS Transport Profile

    T-MPLS requirements feeding into IETF MPLS-TP enhancements: MPLS-TP differs technologically from T-MPLS. ITU stopped work on T-MPLS.

    Effort to address Pt-to-Pt ATM-like transport centric networks (like ATM PVCs)

    Focused on connection-oriented (CO-PS) services

    Data planebased on IETF MPLS, with restricted options

    No ECMP, no PHP, no LSP merging

    Control planestatic and/or dynamic

    Static provisioning with NMS, with standardized common functions

    Dynamic control plane based on GMPLS or IP/MPLS

    Key OAM enhancements

    GE-ACHGeneric Associated Channel to support FCAPS functions alongside transport MPLS LSP

    GALGeneric-ACH Label as generic exception mechanism for LSP OAM

    Provisioning and Management

    CE CE

    PE2 PE1

    12

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    Aggregation Network MPLS/IP

    Dark Fibre / CWDM / DWDM and ROADM

    Carrier Ethernet Aggregation

    BNG

    Business PE

    Access Edge

    Aggregation Node

    DSL

    Ethernet

    Core

    VoD

    Content Network

    TV SIP

    Multiservice Core

    Core Network IP / MPLS

    Distribution Node

    STB

    Corporate

    STB

    STB

    Residential

    Corporate

    Corporate

    Business

    Business

    Business

    Residential

    Residential

    2G/3G Node

    PON

    Architecture variants: IP/MPLS ETHERNET

    IP/MPLS

    IP/MPLS MPLS-TP

    MPLS-TP

    Cisco supports the MPLS-TP option now (CPT Product Line)

    NGN Carrier Ethernet System Evolution

    13

  • 2012 Cisco and/or its affiliates. All rights reserved. BRKSPG-2111 Cisco Public

    NGN Carrier Ethernet Transport Direction

    Characteristic SONET

    /

    SDH

    Optical OTN

    (ROADMs)

    Electrical OTN

    PBB-TE MPLS-TP IP/MPLS

    Ethernet

    Eline (10GE)

    Eline (sub 10GE)

    E-Tree

    E-LAN

    Legacy

    F/R

    ATM

    TDM

    IP

    L3VPN

    L3 Unicast

    L3 Multicast

    Content

    General

    Traffic Engineering

    50ms restoration

    Multiplexing Technology Time Division

    Wave Division Time Division Statistical Statistical Statistical

    UNI processing Limited None None Typically rich Typically rich Typically rich

    Granularity VC-4 Lambda ODU Variable Variable Variable

    Technology Maturity

    Cisco focuses on IP/MPLS for the Carrier Ethernet Transport arch

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