Cisco ASR 9000 Series Aggregation Services Router MPLS Configuration Guide Cisco IOS XR Release 3.7.2 March 2009
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Cisco ASR 9000 Series Aggregation Services Router MPLS Configuration Guide Cisco IOS XR Release 3.7.2 March 2009 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 527-0883 Customer Order Number: OL-17241-01 THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY. 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CONTENTS Preface MPC-xi Changes to This Document MPC-xi Obtaining Documentation and Submitting a Service Request MPC-xi Implementing MPLS Label Distribution Protocol on Cisco ASR 9000 Series Routers MPC-1 Contents MPC-1 Prerequisites for Implementing Cisco MPLS LDP MPC-2 Information About Implementing Cisco MPLS LDP MPC-2 Overview of Label Distribution Protocol MPC-2 LDP Graceful Restart MPC-5 Label Advertisement Control (Outbound Filtering) MPC-9 Label Acceptance Control (Inbound Filtering) MPC-9 Local Label Allocation Control MPC-9 Session Protection MPC-10 IGP Synchronization MPC-10 IGP Autoconfiguration MPC-11 LDP Nonstop Routing MPC-11 How to Implement LDP MPC-12 Configuring LDP Discovery Parameters MPC-12 Configuring LDP Discovery Over a Link MPC-14 Configuring LDP Discovery for Active Targeted Hellos MPC-16 Configuring LDP Discovery for Passive Targeted Hellos MPC-18 Configuring Label Advertisement Control (Outbound Filtering) MPC-20 Setting Up LDP Neighbors MPC-22 Setting Up LDP Forwarding MPC-24 Setting Up LDP NSF Using Graceful Restart MPC-26 Configuring Label Acceptance Control (Inbound Filtering) MPC-29 Configuring Local Label Allocation Control MPC-30 Configuring Session Protection MPC-32 Configuring LDP IGP Synchronization: OSPF MPC-33 Configuring LDP IGP Synchronization: ISIS MPC-35 Configuring LDP IGP Sync Delay Interval MPC-37 Enabling LDP Autoconfiguration for a Specified OSPF Instance MPC-38 Enabling LDP Autoconfiguration in an Area for a Specified OSPF Instance MPC-40 Cisco ASR 9000 Series Aggregation Services Router MPLS Configuration Guide OL-17241-01 MPC-iii Contents Disabling LDP Autoconfiguration MPC-41 Configuring LDP NSR MPC-43 Configuration Examples for Implementing LDP MPC-44 Configuring LDP with Graceful Restart: Example MPC-45 Configuring LDP Discovery: Example MPC-45 Configuring LDP Link: Example MPC-45 Configuring LDP Discovery for Targeted Hellos: Example MPC-45 Configuring Label Advertisement (Outbound Filtering): Example MPC-46 Configuring LDP Neighbors: Example MPC-46 Configuring LDP Forwarding: Example MPC-46 Configuring LDP Nonstop Forwarding with Graceful Restart: Example MPC-47 Configuring Label Acceptance (Inbound Filtering): Example MPC-47 Configuring Local Label Allocation Control: Example MPC-47 Configuring LDP Session Protection: Example MPC-47 Configuring LDP IGP Synchronization—OSPF: Example MPC-47 Configuring LDP IGP Synchronization—ISIS: Example MPC-48 Configuring LDP Autoconfiguration: Example MPC-48 Additional References MPC-48 Related Documents MPC-48 Standards MPC-49 MIBs MPC-49 RFCs MPC-49 Technical Assistance MPC-49 Implementing RSVP for MPLS-TE on Cisco ASR 9000 Series Routers MPC-51 Contents MPC-51 Prerequisites for Implementing RSVP for MPLS-TE MPC-52 Information About Implementing RSVP for MPLS-TE MPC-52 Overview of RSVP for MPLS-TE MPC-52 LSP Setup MPC-53 High Availability MPC-53 Graceful Restart MPC-53 ACL-based Prefix Filtering MPC-56 Information About Implementing RSVP Authentication MPC-56 RSVP Authentication Functions MPC-57 RSVP Authentication Design MPC-57 Global, Interface, and Neighbor Authentication Modes MPC-57 Security Association MPC-58 Key-source Key-chain MPC-59 Cisco ASR 9000 Series Aggregation Services Router MPLS Configuration Guide MPC-iv OL-17241-01 Contents Guidelines for Window-Size and Out-of-Sequence Messages MPC-60 Caveats for Out-of-Sequence MPC-60 How to Implement RSVP MPC-60 Configuring Traffic Engineering Tunnel Bandwidth MPC-60 Confirming DiffServ-TE Bandwidth MPC-61 Enabling Graceful Restart MPC-62 Configuring ACL-based Prefix Filtering MPC-64 Verifying RSVP Configuration MPC-66 Implementing RSVP Authentication MPC-70 Configuring Global Configuration Mode RSVP Authentication MPC-70 Configuring an Interface for RSVP Authentication MPC-75 Configuring RSVP Neighbor Authentication MPC-80 Verifying the Details of the RSVP Authentication MPC-86 Eliminating Security Associations for RSVP Authentication MPC-86 Configuration Examples for RSVP MPC-87 Bandwidth Configuration (Prestandard): Example MPC-87 Bandwidth Configuration (MAM): Example MPC-87 Bandwidth Configuration (RDM): Example MPC-87 Refresh Reduction and Reliable Messaging Configuration: Example MPC-87 Configuring Graceful Restart: Example MPC-88 Configuring ACL-based Prefix Filtering: Example MPC-89 Setting DSCP for RSVP Packets: Example MPC-89 Configuration Examples for RSVP Authentication MPC-90 RSVP Authentication Global Configuration Mode: Example MPC-90 RSVP Authentication for an Interface: Example MPC-90 RSVP Neighbor Authentication: Example MPC-90 RSVP Authentication by Using All the Modes: Example MPC-91 Additional References MPC-91 Related Documents MPC-91 Standards MPC-92 MIBs MPC-92 RFCs MPC-92 Technical Assistance MPC-92 Implementing MPLS Forwarding on Cisco ASR 9000 Series Routers MPC-93 MFI Control-Plane Services MPC-93 MFI Data-Plane Services MPC-93 Implementing MPLS Traffic Engineering on Cisco ASR 9000 Series Routers MPC-95 Contents MPC-95 Cisco ASR 9000 Series Aggregation Services Router MPLS Configuration Guide OL-17241-01 MPC-v Contents Prerequisites for Implementing Cisco MPLS Traffic Engineering MPC-96 Information About Implementing MPLS Traffic Engineering MPC-96 Overview of MPLS Traffic Engineering MPC-96 Protocol-Based CLI MPC-98 Differentiated Services Traffic Engineering MPC-98 Flooding MPC-100 Fast Reroute MPC-101 MPLS-TE and Fast Reroute over Link Bundles MPC-101 Ignore Intermediate System-to-Intermediate