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MPLS v2.3 - Implementing Cisco MPLS

Description

This design document is for the refresh of the Implementing Cisco MPLS (MPLS) v2.3 instructor-led training (ILT) course, which is used for the Multiprotocol Label Switching (MPLS) Cisco CCIP certification tract. The course is five days long and uses standard ILT form. This update to the course reflects the most-recent developments in network design and technologies, using real-world scenarios to help reinforce the learning of keyobjectives.

Objectives

  • Describe the features of MPLS
  • Describe how MPLS labels are assigned and distributed
  • Configure and troubleshoot frame-mode MPLS on Cisco IOS platforms
  • Describe the MPLS peer-to-peer architecture and explain the routing and packet-forwarding model in this architecture
  • Configure, monitor, and troubleshoot VPN operations
  • Describe how the MPLS VPN model can be used to implement managed services and Internet access
  • Describe the various Internet access implementations that are available and the benefits and drawbacks of each model
  • Describe the tasks and commands that are necessary to implement MPLS TE

Prerequisites

The knowledge and skills that a learner must have before attending this course include the following:

  • Cisco CCNA certification or the equivalent level of working knowledge and experience
  • Building Scalable Cisco Internetworks
  • Configuring BGP on Cisco Routers

Who Should Attend

The primary audience for this course is as follows:

  • The target audience for Implementing Cisco MPLS consists of network administrators and techniciansCisco CCNP, CCDP, CCIE, and CCIP routing and switching candidateswho are responsible for implementing and troubleshooting basic IP multicast-enabled networks within a single domain.

The secondary audience for this course is as follows:

  • The course is targeted toward pre-sales and post-sales technical engineers who are responsible for designing, implementing, andtroubleshooting MPLS networks or solutions that are based on MPLS technology.

Outline

  • Module 1: MPLS Features
    • Lesson 1: Describing Basic MPLS Concepts
      • MPLS Overview
      • MPLS Terminology
      • MPLS Architecture Components
    • Lesson 2: Describing MPLS Labels and Label Stack
      • MPLS Labels
      • MPLS Label Imposition
      • MPLS Label Stack
    • Lesson 3: Identifying MPLS Applications
      • MPLS Services
      • MPLS IP Routing
      • MPLS VPNs
      • MPLS Traffic Engineering
      • MPLS Quality of Service
      • Any Transport over MPLS
      • Interactions Between MPLS services
  • Module 2: Label Assignment and Distribution
    • Lesson 1: Discovering LDP Neighbors
      • Label-Distributing Protocols
      • LDP Session Establishment
      • Discovering LDP Neighbors
      • Negotiating LDP Sessions
    • Lesson 2: Describing Typical Label Distribution in Frame-Mode MPLS
      • Propagating Labels Across a Network
      • Label Switched Paths
      • Propagating Labels by Using PHP
      • Impact of IP Aggregation on LSPs
      • Allocating Labels in a Frame-Mode MPLS Network
      • Distributing and Advertising Labels
      • Detecting Frame-Mode Loops
    • Lesson 3: Describing Convergence in Frame-Mode MPLS
      • MPLS Steady-State Operation
      • Link Failure State
      • Routing Protocol Convergence After a Link Failure
      • MPLS Convergence After a Link Failure
      • Link Recovery Actions
  • Module 3: Frame-Mode MPLS Implementation on Cisco IOS Platforms
    • Lesson 1: Using Cisco Express Forwarding Switching
      • Cisco IOS Platform Switching Mechanisms
      • Using Standard IP Switching
      • Cisco Express Forwarding Switching Architecture
      • Configuring IP Cisco Express Forwarding
      • Monitoring IP Cisco Express Forwarding
    • Lesson 2: Configuring Frame-Mode MPLS on Cisco IOS Platforms
      • MPLS Configuration Tasks
      • Configuring the MPLS ID on a Router
      • Configuring MPLS on a Frame-Mode Interface
      • Configuring a Label-Switching MTU
      • Configuring IP TTL Propagation
      • Configuring Conditional Label Distribution
    • Lesson 3: Monitoring Frame-Mode MPLS on Cisco IOS Platforms
      • Monitoring MPLS
      • Monitoring LDP
      • Monitoring Label Switching
      • Debugging MPLS and LDP
    • Lesson 4: Troubleshooting Frame-Mode MPLS on Cisco IOS Platforms
      • Common Frame-Mode MPLS Issues
      • Solving LDP Session Startup Issues
      • Solving Label Allocation Issues
      • Solving Label Distribution Issues
      • Solving Packet-Labeling Issues
      • Solving Intermittent MPLS Failures
      • Solving Packet Propagation Issues
  • Module 4: MPLS Virtual Private Network Technology
    • Lesson 1: Introducing Virtual Private Networks
      • Basic VPN Overview
      • VPN Implementation Models
      • Benefits and Drawbacks of VPNs
    • Lesson 2: Introducing MPLS VPN Architecture
      • MPLS VPN Architecture
      • Methods of Propagating Routing Information Across the P-Network
      • Route Distinguishers
      • Route Targets
    • Lesson 3: Introducing the MPLS VPN Routing Model
      • MPLS VPN Routing
      • Support for Internet Routing
      • Routing Tables on PE Routers
      • Identifying End-to-End Routing Update Flow
    • Lesson 4: Forwarding MPLS VPN Packets
      • End-to-End VPN Forwarding Mechanisms
      • VPN Penultimate Hop Popping
      • Propagating VPN Labels Between PE Routers
      • Effects of MPLS VPNs on Label Propagation
      • Effects of MPLS VPNs on Packet Forwarding
  • Module 5: MPLS VPN Implementation
    • Lesson 1: Using MPLS VPN Mechanisms of Cisco IOS Platforms
      • VRF Table
      • Need for Routing Protocol Contexts
      • VPN-Aware Routing Protocols
      • Using VRF Tables
      • Propagating BGP RoutesOutbound
      • Propagating BGP RoutesInbound
      • Propagating Non-BGP RoutesOutbound
      • Propagating Non-BGP RoutesInbound
    • Lesson 2: Configuring VRF Tables
      • VRF Configuration Tasks
      • Creating VRF Tables and Assigning RDs
      • Specifying Export and Import RTs
      • Using MPLS VPN IDs
      • Assigning an Interface to a VRF Table
      • Typical Configuration to Enable VRFs
    • Lesson 3: Configuring an MP-BGP Session Between PE Routers
      • Configuring BGP Address Families
      • Enabling BGP Neighbors
      • Configuring MP-BGP
      • Configuring MP-IBGP
      • Configuring MP-BGP Community Propagation
      • Disabling IPv4 Route Exchange
    • Lesson 4: Configuring Small-Scale Routing Protocols Between PE and CE Routers
      • Configuring PE-CE Routing Protocols
      • Selecting the VRF Routing Context for BGP
      • Configuring Per-VRF Static Routes
      • Configuring RIP PE-CE Routing
      • Configuring EIGRP PE-CE Routing
      • Configuring SOO for EIGRP PE-CE Loop Prevention
    • Lesson 5: Monitoring MPLS VPN Operations
      • Monitoring VRFs
      • Monitoring VRF Routing
      • Monitoring MP-BGP Sessions
      • Monitoring an MP-BGP VPNv4 Table
      • Monitoring Per-VRF Cisco Express Forwarding and LFIB Structures
      • Monitoring Labels Associated with VPNv4 Routes
      • Identifying Other MPLS VPN Monitoring Commands
    • Lesson 6: Configuring OSPF as the Routing Protocol Between PE and CE Routers
      • Enhanced OSPF Hierarchical Model
      • Propagating OSPF Customer Routes
      • Implementing MPLS VPNs as an OSPF Superbackbone
      • Configuring OSPF PE-CE Routing
      • Using the OSPF Down Bit
      • Optimizing Packet Forwarding Across the MPLS VPN Backbone
      • Using the OSPF Tag Field
      • Sham Link
      • Configuring a Sham Link
    • Lesson 7: Configuring BGP as the Routing Protocol Between PE and CE Routers
      • Configuring a Per-VRF BGP Routing Context
      • Reasons for Limiting the Number of Routes in a VRF
      • Limiting the Number of Prefixes Received from a BGP Neighbor
      • Limiting the Total Number of VRF Routes
      • Identifying AS-Override Issues
      • Identifying the Allow as Issue
      • Implementing SOO for Loop Prevention
    • Lesson 8: Troubleshooting MPLS VPNs
      • Identifying Preliminary Steps in MPLS VPN Troubleshooting
      • Verifying the Routing Information Flow
      • Validating CE-to-PE Routing Information Flow
      • Validating PEto-PE Routing Information Flow
      • Validating PE-to-CE Routing Information Flow
      • Identifying the Issues When Verifying the Data Flow
      • Validating Cisco Express Forwarding Status
      • Validating the End-to-End LSP
      • Validating the LFIB Status
  • Module 6: Complex MPLS VPNs
    • Lesson 1: Introducing Overlapping VPNs
      • Participants in Overlapping VPNs
      • Typical Overlapping VPN Usages
      • Overlapping VPN Routing
      • Overlapping VPN Data Flow
      • Configuring Overlapping VPNs
    • Lesson 2: Introducing Central Services VPNs
      • Access Characteristics of a Central Services VPN
      • Routing Characteristics of a Central Services VPN
      • Identifying Central Services VPN Data Flow Model
      • Configuring a Central Services VPN
      • Integrating a Central Services VPN with a Simple VPN
      • Identifying the RD Requirements When Integrating Central Services and Simple VPNs
      • Identifying the RT Requirements When Integrating Central Services and Overlapping VPNs
    • Lesson 3: Using Advanced VRF Import and Export Features
      • Advanced VRF Features
      • Configuring Selective VRF Import
      • Configuring Selective VRF Export
    • Lesson 4: Introducing the Managed CE Routers Service
      • Requirements of Managed CE Routers
      • VRF and RD Requirements
      • Configuring Managed CE Routers
  • Module 7: Internet Access and MPLS VPNs
      Lesson 1: Combining Internet Access with MPLS VPNs
      • Customer Internet Connectivity Scenarios
      • Internet Design Models for Service Providers
      • Internet Access Through Global Routing
      • Internet Access as a Separate VPN
      • Internet Access Through Route Leaking
    • Lesson 2: Implementing Separate Internet Access and VPN Services
      • Classical Internet Access for a VPN Customer
      • Using Separate Subinterfaces
      • Accessing the Internet from Every Customer Site
      • Separate Internet Access Benefits and Limitations
    • Lesson 3: Implementing Internet Access as a Separate VPN
      • Internet Access as a Separate VPN
      • Implementing Redundant Internet Access
      • Implementing Classical Internet Access for a VPN Customer
      • Implementing Internet Access from Every Customer Site
      • Implementing Wholesale Internet Access
      • Running an Internet Backbone in a VPN
  • Module 8: MPLS Traffic Engineering Overview
    • Lesson 1: Introducing Traffic Engineering Concepts
      • Traffic Engineering Overview
      • Business Drivers for Traffic Engineering
      • Congestion Avoidance and Traffic Engineering
      • Traffic Engineering with a Layer 2 Overlay Model
      • Traffic Engineering with a Layer 3 Model
      • MPLS Traffic Engineering Model
    • Lesson 2: Understanding MPLS TE Components
      • Traffic Tunnel Concepts
      • Traffic Tunnel Characteristics
      • Traffic Tunnel Attributes
      • Network Links and Link Attributes
      • Constraint-Based Path Computation
      • Traffic Engineering Process
      • Role of RSVP in Path Setup and Trunk Admission Control
      • Forwarding Traffic to a Tunnel
    • Lesson 3: Configuring MPLS Traffic Engineering on Cisco IOS Platforms
      • MPLS TE Configuration Flowchart
      • Enabling Device-Level MPLS-TE Support
      • Configuring IGP for MPLS TE Support
      • Enabling Basic MPLS-TE on an Interface
      • Creating and Configuring a Traffic Tunnel
      • Mapping Traffic into Tunnels with Autoroute
    • Lesson 4: Monitoring Basic MPLS TE on Cisco IOS Platforms
      • Monitoring MPLS TE Tunnels
      • Monitoring MPLS TE

    Lab Outline

  • Lab 2-1: Establishing the Service Provider IGP Routing Environment
  • Lab 3-1: Establishing the Core MPLS Environment
  • Lab 5-1: Configuring Initial MPLS VPN Setup
  • Lab 5-2: Running EIGRP Between PE and CE Routers
  • Lab 5-3: Running OSPF Between PE and CE Routers
  • Lab 5-4: Running BGP Between PE and CE Routers
  • Lab 6-1: Establishing Overlapping VPNs
  • Lab 6-2: Merging Service Providers
  • Lab 6-3: Establishing a Common Services VPN
  • Lab 7-1: Establishing Central Site Internet Connectivity with an MPLS VPN
  • Lab 8-1: Implementing Basic MPLS TE