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

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

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

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

3 Your Business Requirements
Global solutions that grow with the business Consistent customer support Consistent and predictable services Superior customer experience Easy to use, integrated services Migration path to new technologies Value for return on communications investment On-time implementation Ability to Leverage the Latest Technologies Offer customers what they want and stay ahead of there competition One Future Proof Network A network that will run tomorrow’s applications Lower Networking Costs Lower total cost of ownership Simplification Ability to add and remove locations with ease Technology that does require a team of “Rocket Scientists” to operate High Performance and Flexible Bandwidth Growth Class of service provides an effective means of handling a complex application mix AT&T Designs Networking Solutions for Your Business Needs

4 AT&T is Investing to Operate the World’s Best IP Network
AT&T’s IP Network: Engineered to Your Requirements AT&T is Investing to Operate the World’s Best IP Network Corporate Sites Business Partners HQ Remote Worker End User Single AT&T Global Network HQ End User Corporate Sites Business Partners End-to-End Quality of Service Varying Degrees of Management Overview: To ensure that our customers continually have optimal reach and performance, AT&T is aggressively building out our core network on a global basis. Since 1998, AT&T has invested more than $35 billion in its networking infrastructure to create a global, packet based, intelligent network. Key Discussion Points: 1)       Geographic: Where do you need to go? Are your geographic requirements changing (global/domestic)? What levels of support do you need consistently delivered globally? 2)       Performance: What are the price/performance trade-offs. What requirements are new web-based apps driving your networking? Where are 5 9’s of reliability mandatory. Where are they “optional”? What would having an MPLS-based IP network mean to you? AT&T Proof Points: Investing in the edge: Key area for unlocking value. By increasing our local footprint (around the world) it allows us to control our costs, create new capabilities, and reduce our cycle times. AT&T has shifted its focus on investment dollars from the core to the edge. Investing in the core: Consolidating on a common core network via our Intelligent Optical Network: 1)Bandwidth-on-demand via our IP-based MPLS Core AT&T’s IP infrastructure is a leader in the industry: AT&T has been rated as having the top performing dial platform for more than 3 years running. AT&T has also been recognized by the industry analyst firm Ryan Hankin Kent as being the leader in IP traffic volume. Investing in an integrated management platform: AT&T’s e-servicing platform and iGEMS (integrated global Enterprise Management System) provides consistent support on a global basis with improved service level management capabilities as well as a wide array of integrated, easy to use e-servicing tools. Closing Point: The overall impact of a business process transformation is strongly connected to the reach and performance capabilities of the networking infrastructure. If the ability to consistently manage the performance of the network is not designed to scale, the quality of a business process transformation will be compromised. 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)

5 MPLS in the AT&T Global Network Backbone
RAS Internet Edge VPNs Private & I1.1 Servers RAS Shared Servers NCP CSR CSR CSR X-over Services Network SNA PE PE NCP Internet MPLS VPNs PE PE Shared MPLS Network CSR PE AT&T Global Network is a seamless, ubiquitous network that has been designed on the same state of the art equipment as in the AT&T Frame/ATM network in the US. Use of the same platform and equipment makes it easy to maintain the network and makes it possible for AT&T to quickly deploy services and technologies consistently any where in the world. This network allows us to offer a seamless suite of VPN solutions on a global basis, with MPLS at the core with the ability to offer Class of Services. What is Multiprotocol Label Switching (MPLS)? MPLS allows the network to transmit data packets, using standard IP routing protocols, to any-to-any location via a short, pre-determined path across the AT&T network. Customers looking for simplified fully-meshed communications and those with a need for distributed communications now have an elegantly simple solution that gives them the best of both worlds-the ubiquitous access of IP and the security and reliability of Frame Relay / ATM. Multi-protocol label switching architecture describes the mechanisms to perform label switching---which combines the benefits of packet forwarding based on layer 2 switching, with the benefits of layer 3 routing. MPLS supports quality of service for your business applications: This means that you will have class of services for different applications and traffic prioritization. In addition, you will receive any-to-any connectivity meaning fully meshed connectivity, as wells as secure VPNs. Now let’s look at a comparison of the operations required to update an overlay IP managed network vs. an IP managed network based on MPLS. Adding a new CPE device to the customer’s network requires that a number of steps be taken in both the providers network and the customer’s network. In the provider’s network, N-1 new PVCs are required to fully connect the new node.A new traffic matrix is required to resize the PVC mesh, and all of the customer’s PVCs need to be resized. A new OSPF routing topology may also be required, especially if the PVCs are not fully meshed. In the customer’s network, each CPE device must be updated with the new IP topology. The problem with this approach is that the Frame Relay or ATM network has no IP awareness, so it is unable to help simplify the operations that take place at the IP layer. In contrast, adding a new CPE device with an MPLS-based managed IP network is simple. Here, only the new CPE device needs to be configured to understand how to reach the network. The POP edge LSR also needs to be configured to know which VPN(s) the CPE device belongs to. Since the network is VPN-aware, it is able to update the CPE with VPN reachability. The same routing update process also informs the other CPE devices about this new entrant. Of course, you may also need to reconfigure the trunks in your network to handle the additional capacity, but this is not typically required for each new customer edge device. CSR Frame VPNs ATM & Frame Infrastructure Optical Core Network CSR

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

7 Convergence - Wouldn’t this be Nice?
MPLS Enabled IP Network – All Applications on ONE IP Network Data Applications Voice Applications MPLS IP Backbone Internet Applications

8 MIS – Managed Internet Service The Foundation for MPLS PNT
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 LAN Customer Premises Customer router Description Dedicated port into AT&T’s 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) local access AT&T POP Access router AT&T CBB (IP Backbone) Public Internet

9 Simply stated – A network-based IP VPN
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 customer’s 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 Traditional VPNs On IP networks - Use special VPN gear at the customer’s site (“edge”) to secure data On Frame or ATM networks - Use PVCs in the provider’s network to secure data

10 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 Features of MPLS PNT Access Speeds Addressing Routing protocol
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 Model Examples of MPLS PNT
Label Transport IP Transport PE (AR) P (BR) Downstream ISP’s MPLS VPN MPLS VPN CE PE (AR) P (BR) Customer Region 1 MPLS VPN Region 2 CE 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 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

13 The Value of Both Models
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 customer’s packets identifying the VPN and path through the AT&T network The combination of the customers labels plus AT&T’s 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. 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 customer’s 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 doesn’t have to understand MPLS but will be provided a network based VPN

14 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 Provider’s (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 Class of Service With MPLS PNT
CBB Core BR CR2 CR1 AR1 AR2 For traffic flow direction from CR1 to CR2, queuing and prioritization is done at CR1 outgoing interface towards AR1 and AR2 out going interface towards CR2. For traffic flow direction from CR2 to CR1, the queuing and prioritization is done at CR2 outgoing interface towards AR2 and AR1 outgoing interface towards CR1. Basically, the CR and AR work together. AR2 will honor the TOS bits marked by CR1 and queue different classes accordingly, to deliver the performance at the AR2-CR2 link. Vise versa for CR2 and AR1. Types of queuing mechanisms used are Low Latency Queue, Class Based Weighted Fair Queuing, and Weighted Random Early Drop. Packet prioritization by reordering Bandwidth allocation Congestion management CR=Customer Router AR=Access Router

16 Service Level Agreements (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 The Value of MPLS PNT Cost Effectiveness Layer 3 PPP local access
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 The Value of MPLS PNT - con’t
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 Accolades AT&T ranked highest on Gartner’s US NSP Magic Quadrant with best “Ability to Execute” and “Completeness of Vision” 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 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: The World’s Networking Company
Thank You

21 Back Up Slides

22 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., customer’s 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 Backbone Node Redundancy Access Router Redundancy Automatic Load Balancing AR CR POP IOC LC AR CR POP IOC LC Backbone Backbone Backbone AR CR POP IOC LC Backbone Customer site Customer site Customer site

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