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MPLS has grown to be the new default network layer for service providers and is finding its way into enterprise networks as well. You will get a comprehensive overview of all the aspects of MPLS, including the building blocks, its applications, troubleshooting and a perspective on the future of MPLS.
A comprehensive introduction to all facets of MPLS theory and practiceHelps networking professionals choose the suitable MPLS application and design for their network Provides MPLS theory and relates to basic IOS configuration examples The Fundamentals Series from Cisco Press launches the basis to readers for understanding the purpose, application, and management of technologiesMPLS has emerged as the new networking layer for service providers throughout the world. For many service providers and enterprises MPLS is a way of delivering new applications on their IP networks, while consolidating data and voice networks. MPLS has grown to be the new default network layer for service providers and is finding its way into enterprise networks as well. This book focuses on the building blocks of MPLS (architecture, forwarding packets, LDP, MPLS and QoS, CEF, etc.). This book also reviews the different MPLS applications (MPLS VPN, MPLS Traffic Engineering, Carrying IPv6 over MPLS, AToM, VPLS, MPLS OAMetc.).You will get a comprehensive overview of all the aspects of MPLS, including the building blocks, its applications, troubleshooting and a perspective on the future of MPLS.
This is a comprehensive introduction to all facets of MPLS theory and practice. The features include: helps networking professionals choose the suitable MPLS application and design for his/her network; provides MPLS theory and relates to basic IOS configuration examples; and the Fundamental series from Cisco Press launches the basis to readers for understanding the purpose, application, and management of technologies. MPLS has emerged as the new networking layer for Service Providers throughout the world. For many Service Providers and enterprises MPLS is a way of delivering new applications on their IP networks, while consolidating data and voice networks. MPLS has grown to be the new default network layer for Service Providers and is finding its way into Enterprise networks as well. As opposed to the other books from Cisco Press on MPLS, this book will focus on the building blocks of MPLS (forwarding packets, LDP, MPLS and QoS, CEF, etc.) and not on a specific MPLS applications (MPLS VPN or MPLS Traffic Engineering). MPLS Fundamentals will provide readers with a basic understanding of MPLS and its applications. Readers will receive a comprehensive overview of all the aspects of
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Table Of Content
IntroductionPart I: Fundamentals of MPLSChapter 1 The Evolution of MPLSDefinition of MPLSPre-MPLS ProtocolsBenefits of MPLS Bogus Benefit The Use of One Unified Network Infrastructure Better IP over ATM Integration BGP-Free Core Peer-to-Peer VPN Model Versus Overlay VPN Model0 Overlay VPN Model0 Peer-to-Peer VPN Model Optimal Traffic Flow Traffic EngineeringHistory of MPLS in Cisco IOS Tag Switching to MPLS MPLS ApplicationsSummaryChapter Review QuestionsChapter 2 MPLS ArchitectureIntroducing MPLS Labels Label Stacking Encoding of MPLSMPLS and the OSI Reference ModelLabel Switch RouterLabel Switched PathForwarding Equivalence ClassLabel Distribution Piggyback the Labels on an Existing IP Routing Protocol Running a Separate Protocol for Label DistributionLabel Distribution with LDPLabel Forwarding Instance BaseMPLS PayloadMPLS Label SpacesDifferent MPLS Modes Label Distribution Modes Label Retention Modes LSP Control ModesSummaryChapter Review QuestionsChapter 3 Forwarding Labeled PacketsForwarding of Labeled Packets Label Operation IP Lookup Versus Label Lookup Load Balancing Labeled Packets Unknown LabelReserved Labels Implicit NULL Label Explicit NULL Label Router Alert Label OAM Alert LabelUnreserved LabelsTTL Behavior of Labeled Packets TTL Behavior in the Case of IP-to-Label or Label-to-IP TTL Behavior in the Case of Label-to-Label TTL ExpirationMPLS MTU MPLS MTU Command Giant and Baby Giant Frames Giant Frames on Switches MPLS Maximum Receive UnitFragmentation of MPLS PacketsPath MTU DiscoverySummaryChapter Review QuestionsChapter 4 Label Distribution ProtocolLDP OverviewLDP Operation The Discovery of LSRs That Are Running LDP LDP Session Establishment and Maintenance Number of LDP Sessions Advertising of Label Mappings Label Withdrawing Housekeeping by Means of NotificationTargeted LDP SessionLDP AuthenticationControlling the Advertisement of Labels via LDPMPLS LDP Inbound Label Binding FilteringLDP AutoconfigurationMPLS LDP-IGP Synchronization How MPLS LDP-IGP Synchronization Works MPLS LDP-IGP Synchronization ConfigurationMPLS LDP Session ProtectionSummaryChapter Review QuestionsChapter 5 MPLS and ATM ArchitectureBrief Introduction to ATMLabel EncodingLabel Advertisement Downstream-on-Demand Label Advertisement LDP Control Mode for ATMLDP for LC-ATM Label Space Loop Detection by LDP Loop Detection by Hop Count TLV TTL Manipulation Loop Detection by Path Vector TLV LDP Address Messages Blocking Label RequestsAggregate LabelsVC-MergeNon MPLS-Aware ATM SwitchesLabel Switch ControllerMulti-Virtual Circuit Tagged Bit Rate MPLS CoSFrame Mode ATMReducing the Number of LVCsSummaryChapter Review QuestionsChapter 6 Cisco Express ForwardingOverview of Cisco IOS Switching Methods Process Switching Fast Switching CEF SwitchingWhy Is CEF Needed in MPLS Networks?What Are the Components of CEF? The Adjacency Table The CEF TableOperation of CEFDistributed CEF (DCEF)CEF Switching Packets in HardwareLoad Balancing in CEFUnequal Cost Load BalancingLabeling IP Packets by CEFLoad Balancing Labeled PacketsTroubleshooting CEFSummaryChapter Review QuestionsPart II: Advanced MPLS TopicsChapter 7 MPLS VPNIntroduction to MPLS VPN Definition of a VPN VPN Models MPLS VPN ModelArchitectural Overview of MPLS VPNVirtual Routing Forwarding RD RTs VPNv4 Route Propagation in the MPLS VPN Network Packet Forwarding in an MPLS VPN NetworkBGP BGP Multiprotocol Extensions and Capabilities BGP Extended Community: RT VPNv4 Routes BGP Carrying the Label RRs RR Group BGP Route Selection BGP Multipath Using Multiple RDsPacket ForwardingPE-CE Routing Protocols Connected Routes Static Routing RIP Version 2 OSPF OSPF VRF Configuration OSPF Metric Propagation BGP Extended Communities for OSPF OSPF Network Design Sham Link Down Bit and Domain Tag EIGRP Configuration Pre-Bestpath POI EIGRP PE-CE with Backdoor LinksIS-IS eBGP Autonomous System Override allowas-inHub-and-SpokeSOOVRF AccessInternet Access Internet in a VPN Internet Access Through the Global Routing Table