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AT&T Proprietary Information AT&T Multi-protocol Label Switching Private Network Transport Service (MPLS PNT) National Communications Tel: 866-624-2008.

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Presentation on theme: "AT&T Proprietary Information AT&T Multi-protocol Label Switching Private Network Transport Service (MPLS PNT) National Communications Tel: 866-624-2008."— Presentation transcript:

1 AT&T Proprietary Information AT&T Multi-protocol Label Switching Private Network Transport Service (MPLS PNT) National Communications Tel:

2 AT&T Proprietary Information Agenda Your Business Requirements What is MPLS? MPLS PNT Offer – IP VPN The Value of MPLS PNT Wrap Up and Q&A

3 AT&T Proprietary Information Your Business Requirements AT&T Designs Networking Solutions for Your Business Needs AT&T Designs Networking Solutions for Your Business Needs Easy to use, integrated services Consistent customer support Global solutions that grow with the business Migration path to new technologies Superior customer experience Value for return on communications investment Consistent and predictable services On-time implementation

4 AT&T Proprietary Information AT&Ts IP Network: Engineered to Your Requirements AT&T is Investing to Operate the Worlds Best IP Network HQ End User Corporate Sites Business Partners Corporate Sites Business Partners HQ Remote Worker End User Single AT&T Global Network End-to-End Quality of Service AT&Ts Network Evolution: Optimizing Application Performance with MPLS Supports Quality of Service/Classes of services for different applications –Traffic Prioritization Scalable Virtual Private Networks (VPN) Varying Degrees of Management

5 AT&T Proprietary Information MPLS in the AT&T Global Network Backbone X-over Services Network CSR Frame VPNs Internet Private & I1.1 Servers SNA ATM & Frame Infrastructure NCP RAS CSR NCP CSR Shared Servers CSR PEPE Shared MPLS Network PE Optical Core Network PE CSR Internet MPLS VPNs Edge VPNs RAS

6 AT&T Proprietary Information How MPLS forwards Packets Data PacketTwo Labels The inner label (second- level) identifies the destination VPN and customer address Egress MPLS Edge Router removes labels from each packet The outer label (first- level) is the forwarding label for transport within the core Ingress MPLS Edge Router adds two labels to each packet

7 AT&T Proprietary Information Convergence - Wouldnt this be Nice? Internet Applications Data Applications MPLS IP Backbone Voice Applications MPLS Enabled IP Network – All Applications on ONE IP Network

8 AT&T Proprietary Information MIS – Managed Internet Service The Foundation for MPLS PNT LAN AT&T CBB (IP Backbone) Customer Premises Customer router Public Internet local access AT&T POP Access router Provides customers with managed, dedicated connectivity to the public Internet, complemented with a number of value added services. AT&T carries customers traffic to anywhere on the Internet Description Dedicated port into AT&Ts OC48/OC192 Common Backbone - no single point of failure in the core backbone: Designed with multiple rings for alternative routes between nodes Routers deployed in a redundant fashion (power, processors) Access speeds range 56kbps – 2.5 Gbps (OC48) Access options: PL, FR, ATM, T1SINA, Ethernet MIS with CPE option includes: equipment lease, installation, monitoring, and maintenance; also offer redundant configuration (Cold Standby CPE)

9 AT&T Proprietary Information What is AT&T MPLS PNT? PNT is a new type of VPN (Hybrid of the traditional models) –Provisioned on the AT&T IP Network –Uses MPLS (Multiprotocol Label Switching) to provide security Does not need additional VPN gear at the customers site for security A private networking environment in a shared infrastructure (IP Network) utilizing Multiprotocol Label Switching (MPLS) technology based on IETF Standard (RFC 2547) Simply stated – A network-based IP VPN

10 AT&T Proprietary Information Applications of MPLS PNT VPN –MIS PNT is a network based VPN, which offers all of the benefits of traditional IP based VPNs without the need for additional VPN gear and management Point to Point Connection –MIS PNT provides a dedicated, replicable, and secure path through the AT&T IP Backbone Merge Networks (FR, ATM, IP) –MIS PNT gives customers the ability to have the security of FR on an IP network. Therefore, they can have Internet access and security and CoS all on one network

11 AT&T Proprietary Information Features of MPLS PNT Access Speeds –Packet over SONET (POS) interface access for T1, T3, OC3, OC12 and OC48 (Fractional T1 is not available at this time – coming 1Q04) –(NxT1 is not available at this time – however MARO ALB is available) Addressing –Allows both private (example10.x.x) and public addressing Routing protocol –Supports both Static and BGP (depending on PNT model) Billing options –Flat rate, Burstable, Hi-Cap Flex, and aggregate Internet Access –MPLS PNT does not provide internet access (on the same port – Coming soon!) –Internet access can be provided by purchasing Internet ports and will incur additional charges Management –Supports both managed and unmanaged options Footprint –Domestic US only

12 AT&T Proprietary Information Model Examples of MPLS PNT CE router will send AT&T's PE (AR) router labels identifying the VPN. The AT&T PE router adds labels identifying the path through the network PE (AR) P (BR) PE (AR) Downstream ISPs MPLS VPN MPLS VPN Downstream ISPs MPLS VPN CE Label Transport IP Transport CE router will act just like any other IP router. The CE router will send IP packets to AT&T's PE router (AR). The AT&T PE router assigns VPN labels to the packets PE (AR) P (BR) PE (AR) Customer Region 1 MPLS VPN Customer Region 2 CE

13 AT&T Proprietary Information The Value of Both Models MPLS IP Transport (CPE does not send a VPN label to AT&T AR) –Customer Edge router (CE) will send IP traffic to AT&T PE router –AT&T PE router (AR) will assign two labels to the customers packets. –One label identifies the VPN and the other label identifies the path through the AT&T network –Static and BGP routing protocol between customer router and AT&T access router –Advantage: Simplicity. Customer doesnt have to understand MPLS but will be provided a network based VPN MPLS Label Transport (CPE sends a VPN label to AT&T AR) –CE router must be LDP (MPLS Label Distributed Protocol) enabled. It will send IP traffic to AT&T PE Router and add additional labels identifying the VPN –AT&T PE router (AR) will assign two more labels to the customers packets identifying the VPN and path through the AT&T network –The combination of the customers labels plus AT&Ts labels creates the labels needed for MIS PNT –Static routing protocol supported between customer router and AT&T router at this time. –Advantage: »Customer does not need to send AT&T their external routes »Customer can run MPLS within their regional network »Customer can offer MPLS VPN to their own customers.

14 AT&T Proprietary Information How Label Transport Model Works IP Backbone has been MPLS enabled During the Provisioning process, AT&T creates a VPN ID for the customer The Provider Edge (PE) router (or Access Router) will terminate Customer Edge (CE) routers (or Customer Routers) MPLS PNT ports and assign a VPN label to it. PE router will then add on another label for packet forwarding purposes. Once the packet gets into the backbone core, the Providers (P) routers (or Backbone Routers) will have no knowledge of this VPN, where it terminates, or its IP addresses. The P routers will just forward the labeled packets, following the normal network routing mechanism. Once the packet reaches the destination PE router, it will then strip off the forwarding label. Based on the VPN label, the destination PE router will know which port belongs to the VPN. It will then take off the VPN label, and send the packets to the designated port connected to the CE router.

15 AT&T Proprietary Information Class of Service With MPLS PNT CR1 AR1 BR CBB Core CR2 AR2 Packet prioritization by reordering Bandwidth allocation Congestion management CR=Customer Router AR=Access Router

16 AT&T Proprietary Information Service Level Agreements (SLAs) SLAs – 99.99% Availability – 60 millisecond Network Latency/Delay – <0.7% Packet Loss Provisioning T1: 32 Business days T3: 42 Business days OC3 : 63 Business days

17 AT&T Proprietary Information The Value of MPLS PNT Cost Effectiveness –Significant cost savings – 10%-40% compared to Traditional VPNs –Merges both Internet and private networking needs over one cost effective network Layer 3 PPP local access –Offers end to end Native IP Guaranteed Full Port Speeds –Not a CIR/CDR concept that cannot guarantee port speed Extensive U.S. Domestic Reach via the AT&T IP Backbone - a Native IP Network –Uniform MPLS-enabled IP Network –Access independent Security –MPLS inherent security on par with Frame Relay –Additional optional AT&T Security Services High Performance Network –Available with MARO (MIS Access Redundancy Options) –Tier 1 carrier-class IP network reliability and performance Predicatable Performance (QoS) –Multiple Classes of Service supported to accomodate all types of applications

18 AT&T Proprietary Information The Value of MPLS PNT - cont Project Management –Comprehensive network solution design leveraging AT&T engineering and operational expertise –Project and deployment management utilizing global tool set to develop, document and drive implementations globally Simplicity of One Stop Shop with Flexible Billing Options –One contract, one price schedule, one servicing model deployment / operation / customer care, one bill –Billing includes options for flat rate, burstable, hi-cap flex and aggregate Scalability –Network based service can be scaled easily in terms of sites and speeds –Fully meshed connectivity to all sites with just a single connection into the VPN Simplicity –No tunnel or PVC provisioning and maintenance required Flexibility –Add or delete sites/routes as needed Excellent Customer Support –24X7 customer care and network support

19 AT&T Proprietary Information AT&T Accolades AT&T IP backbone is the largest US IP backbone in traffic volume AT&T IP backbone is the best performing IP backbone in the industry A clear leader of managed data networking provider in large enterprise market in a enterprise survey Data market leader in performance and presence by META Group AT&T ranked highest on Gartners US NSP Magic Quadrant with best Ability to Execute and Completeness of Vision First and ONLY carrier with both a coast to coast OC-192 AND more than 1.8M sq. ft. of hosting capacity Handles 2,700 trillion bytes of data on an average business day, equivalent to the printed contents of the Library of Congress, every 11 minutes Operates with percent network reliability for ATM and Frame Relay,as well as percent reliability for IP services

20 AT&T Proprietary Information AT&T: The Worlds Networking Company Thank You

21 AT&T Proprietary Information Back Up Slides

22 AT&T Proprietary Information MIS Access Redundancy Options (MARO) Purchase multiple connections to the AT&T IP backbone to help protect against potential failure in any single component of the MIS circuit. e.g., customers access router, IP backbone router, circuit link, etc. AT&T will coordinate with the customer to implement their desired traffic flow over the two links and manage the necessary BGP4 routing Fast rerouting within the AT&T network upon failure AT&T will implement failover mechanisms to protect against failures of the MIS Managed Routers on customer premises AT&T can provide network professional services to assist in traffic flow design, load sharing, BGP4 design, etc. for MIS customers with or without Managed routers AR CR POP IOC LC AR CR BackboneBackbone Customer site AR CR POP IOC LC AR CR Backbone Customer site AR CR POP IOC LC Backbone Customer site Backbone Node Redundancy Access Router Redundancy Automatic Load Balancing


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