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MPLS And BGP

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    MPLS Fundamentals

    Explain basic core MPLS technology and concepts.

    Explain the function of MPLS Labels and Label Stack.

    Identify MPLS Applications.

    MPLS Operation

    • Describe the characteristics and behaviors of Label Distribution in Frame-mode MPLS.
    • Explain Convergence in Frame-mode MPLS.
    • Describe the characteristics and behaviors of Label Distribution over LC-ATM Interfaces and VC Merge.
    • Describe the features of MPLS Label Allocation, Distribution, and Retention Modes.
    • Explain the process of LDP Neighbor Discovery.

    MPLS Virtual Private Networks Technology

    • Describe the characteristics and functions of Virtual Private Networks.
    • Describe Overlay and Peer-to-Peer VPNs.
    • Explain Major VPN Categorization.
    • Describe MPLS VPN Architecture.
    • Describe the MPLS VPN Routing Model.
    • Explain the process of MPLS VPN Packet Forwarding.

    Frame-Mode/Cell-Mode MPLS Implementation, Configuration and Troubleshooting

    • Identify the functions of CEF Switching.
    • Explain and configure Frame-mode MPLS on Cisco IOS platforms.
    • Monitor MPLS on Cisco IOS platforms – Frame-mode interfaces.
    • Troubleshoot Frame-Mode MPLS configurations on Cisco IOS Platforms.
    • Explain and configure Label-Controlled ATM MPLS.
    • Explain and configure LC-ATM MPLS over ATM Virtual Path .

    MPLS VPN Implementation, Configuration and Troubleshooting

    • Explain MPLS VPN Mechanisms supported on Cisco Platforms.
    • Configure VRF tables.
    • Configure MP-BGP Session between PE routers.
    • Configure Small Scale Routing Protocols.
    • Monitor MPLS VPN Operation.
    • Configure OSPF as the Routing Protocol.
    • Configure BGP as the Routing Protocol.
    • Troubleshoot basic MPLS VPN configuration errors.
    • Configure and troubleshoot MPLS Traffic Engineering (TE).

    Complex MPLS VPNs

    • Describe the advanced VRF Import/Export Features.
    • Explain the characteristics of Overlapping VPNs.
    • Explain the features of Central Services VPNs.
    • Describe Managed CE Router Service.

    BGP Overview

    Introduction to BGP

    • Given a network scenario, identify appropriate BGP usage and its limitations BGP Session Establishment.
    • Given a typical BGP network scenario, describe the concept of BGP neighbors and the neighbor session establishment procedures BGP Route Processing.
    • Given a diagram of an operational BGP network, describe interdomain route processing, route propagation and BGP path selection Basic BGP Configuration.
    • Given a network consisting of multiple domains, successfully configure BGP II. Route Selection Using Policy Controls.

    Multi-Homed BGP Networks

    • Given a customer scenario where connections to multiple ISPs must be supported, describe the need for influencing BGP route selection AS-Path Filters.
    • Given a customer scenario where connections to multiple ISPs must be supported, successfully configure BGP to influence route selection using AS path filters.

    Prefix-List Filters

    • Given a customer scenario where connections to multiple ISPs must be supported, successfully configure BGP to influence route selection using prefix-list filters .

    Outbound Route Filtering

    • Given an operational BGP network, use outbound route filtering to minimize the impact of BGP routing updates on router resources Route-Maps as BGP Filters.
    • Given a typical BGP network, correctly configure BGP to influence route selection using route maps Implementing Changes in BGP Policy.
    • Given a typical BGP network, configure the route-refresh feature to minimize the impact of expediting BGP policy updates.

    III. Route Selection Using Attributes

    BGP Path Attributes *List BGP path attributes and functionality of each attribute Influencing BGP Route Selection with Weights.

    • Given a customer scenario where multiple connections must be supported, successfully configure BGP to influence route selection using the weight attribute BGP Local Preference.
    • Given a customer scenario where multiple connections must be supported, successfully configure BGP to influence route selection using the local preference attribute BGP Multi-Exit-Discriminator (MED).
    • Given a customer scenario where multiple connections must be supported, successfully configure BGP to influence route selection using the Multi-Exit-Discriminator (MED) attribute BGP Communities.
    • Given a customer scenario where multiple connections must be supported, successfully configure BGP to influence route selection using BGP community attributes.

    IV. Customer-to-Provider Connectivity with BGP

    Customer Connectivity Requirements
    • Describe the requirements to connect customer networks to the Internet in a service provider environment Static Routing Toward the Customer.
    • Given a service provider network, implement customer connectivity using static routing BGP Customer Multi-Homed to a Single Service Provider.
    • Given a customer scenario where multiple connections to a single ISP must be supported, implement customer connectivity with BGP Customer Multi-Homed to Multiple Service Providers.
    • Given a customer scenario where connections to multiple ISPs must be supported, implement customer connectivity with BGP.

    V. BGP Transit Autonomous System Transit Autonomous System Functions

    • Describe the function of a transit autonomous system and the need for IBGP IBGP and EBGP Interaction in a Transit AS.
    • Given a transit autonomous system, describe the interaction between EBGP and IBGP in relation to relevant BGP attributes Packet Forwarding in Transit Autonomous Systems.
    • Describe the function of an IGP in forwarding packets through an autonomous system Configuring a Transit Autonomous System.
    • Given a BGP network scenario, successfully configure an autonomous system to act as a transit backbone Monitoring and Troubleshooting IBGP in Transit AS.
    • Given a configured BGP transit network, verify proper operation and perform the steps necessary to correct basic IBGP configuration errors.

    VI. BGP Route Reflectors

    Introduction to Route Reflectors
    • Describe the function and operation of route reflectors in a BGP environment Network Design with Route Reflectors.
    • Based upon established route reflector design rules, describe the concept of hierarchial route reflectors and their requirements.

    Configuring and Monitoring Route Reflectors

    • Given an existing IBGP network, configure and verify proper operation of route reflectors to modify IBGGP split-horizon rules .

    VII. Advanced BGP Configuration

    Limiting the Number of Prefixes Received from a BGP Neighbor.

    • Given a typical BGP network, successfully configure BGP to limit the number of prefixes received from a neighbor AS-Path Prepending.
    • Given a typical service provider network with connections to multiple autonomous systems, use AS-Path prepending to influence the return path selected by the neighboring autonomous systems BGP Peer Group.
    • Given a typical BGP network, use BGP peer groups to share common configuration parameters between multiple BGP peers BGP Route Flap Dampening.
    • Given a properly configured BGP network, use route flap dampening to minimize the impact of unstable routes.