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Cisco SD-WAN Routing Configuration Guide, Cisco IOS XE Release 17.X

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Cisco SD-WAN Routing Configuration Guide, Cisco IOS XE Release 17.X Cisco SD-WAN Routing Configuration Guide, Cisco IOS XE Release 17.x First Published: 2020-04-30 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 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. The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB's public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California. NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS" WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE. IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental. All printed copies and duplicate soft copies of this document are considered uncontrolled. See the current online version for the latest version. Cisco has more than 200 offices worldwide. Addresses and phone numbers are listed on the Cisco website at www.cisco.com/go/offices. Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: https://www.cisco.com/c/en/us/about/legal/trademarks.html. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1721R) © 2019–2021 Cisco Systems, Inc. All rights reserved. CONTENTS CHAPTER 1 Read Me First 1 CHAPTER 2 What's New in Cisco IOS XE (SD-WAN) 3 CHAPTER 3 Unicast Overlay Routing 5 Supported Protocols 5 OMP Routing Protocol 5 OMP Route Advertisements 6 OMP Route Advertisements for Cisco vSmart Controllers 10 OMP Route Redistribution 10 OMP Graceful Restart 13 BGP and OSPF Routing Protocols 13 OSPFv3 15 EIGRP 15 Configure Unicast Overlay Routing 16 Configure BGP 16 Configure BGP Using CLI 25 Configure OSPF 30 Configure OSPF Using CLI 36 Configure OMP 37 Configure OMP Using CLI 40 Configure OSPFv3 45 Configure OSPFv3 Using CLI 50 Configure EIGRP 52 Configure EIGRP Using CLI 55 Verify EIGRP Configuration Using CLI 56 Cisco SD-WAN Routing Configuration Guide, Cisco IOS XE Release 17.x iii Contents CHAPTER 4 Multicast Overlay Routing 59 Multicast Overlay Routing 59 Supported Protocols 60 PIM 60 IGMP 62 Traffic Flow in Multicast Overlay Routing 62 Configure Multicast Overlay Routing 62 Configure Multicast 63 Configure Multicast Using the CLI 63 Configure PIM 64 Rendezvous Point Selection Process by a PIM BSR 67 Sample Topology for RP Selection by a PIM BSR 68 Configure a PIM BSR 69 CLI Configurations for PIM BSR Selection 71 Verify VRRP-Aware PIM Using the CLI 73 Configure IGMP 74 Configure PIM and IGMP Using the CLI 75 CHAPTER 5 Radio Aware Routing 77 Supported Devices for RAR 77 Prerequisites for RAR 78 Benefits of RAR 78 Restrictions for RAR 78 Information about RAR 78 Overview of RAR 79 System Components of RAR 81 Configure RAR 82 Configure the RAR Feature in Bypass Mode 84 Configure the RAR Feature in Aggregate Mode 85 CHAPTER 6 Route Leaking between Global VRF and Service VPNs 87 Supported Protocols 88 Restrictions for Route Leaking and Redistribution 88 Cisco SD-WAN Routing Configuration Guide, Cisco IOS XE Release 17.x iv Contents Information About Route Leaking 89 How Route Preference is Determined 90 Configure Route Leaking and Redistribution 91 Configure and Verify Route Leaking Using the CLI 93 Configure Route Redistribution Between Global VRF and Service VPNs Using the CLI 99 Verify Route Redistribution 101 Configure VRRP Tracker for Tracking Leaked Service VPNs Using the CLI 102 Verify VRRP Tracking 104 Configuration Example for Route Leaking 105 CHAPTER 7 BFD for Routing Protocols in Cisco SD-WAN 109 Information About BFD for Routing Protocols 109 Overview of BFD 109 How BFD Works in Cisco SD-WAN 110 Supported Protocols and Interfaces 111 Limitations and Restrictions 112 Configure BFD for Routing Protocols 112 Enable BFD for Routing Protocols 113 Configure BFD for Service-Side BGP 113 Configure BFD for Transport-Side BGP 114 Configure BFD for Service-Side EIGRP 115 Configure BFD for Service-Side OSPF and OSPFv3 116 Attach Feature Template to Device Template 117 Configure BFD for Routing Protocols Using CLI 117 Monitor and Verify BFD Configuration 119 Troubleshoot Common BFD Errors 120 Cisco SD-WAN Routing Configuration Guide, Cisco IOS XE Release 17.x v Contents Cisco SD-WAN Routing Configuration Guide, Cisco IOS XE Release 17.x vi CHAPTER 1 Read Me First Related References • Release Notes • Cisco SD-WAN Controller Compatibility Matrix and Server Recommendations User Documentation • Cisco IOS XE (Cisco IOS XE SD-WAN Devices) • Cisco IOS XE (SD-WAN) Qualified Command Reference • Cisco SD-WAN Command Reference Communications, Services, and Additional Information • Sign up for Cisco email newsletters and other communications at: Cisco Profile Manager. • For information on the latest technical, advanced, and remote services to increase the operational reliability of your network visit Cisco Services. • To browse and discover secure, validated enterprise-class apps, products, solutions, and services, visit Cisco Devnet. • To obtain general networking, training, and certification titles from Cisco Press Publishers, visit Cisco Press. • To find warranty information for a specific product or product family, visit Cisco Warranty Finder. • To view open and resolved bugs for a release, access the Cisco Bug Search Tool. • To submit a service request, visit Cisco Support. Documentation Feedback To provide feedback about Cisco technical documentation use the feedback form available in the right pane of every online document. Cisco SD-WAN Routing Configuration Guide, Cisco IOS XE Release 17.x 1 Read Me First Cisco SD-WAN Routing Configuration Guide, Cisco IOS XE Release 17.x 2 CHAPTER 2 What's New in Cisco IOS XE (SD-WAN) Note The documentation set for this product strives to use bias-free language. For purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on standards documentation, or language that is used by a referenced third-party product. Cisco is constantly enhancing the SD-WAN solution with every release and we try and keep the content in line with the latest enhancements. The following table lists new and modified features we documented in the Configuration, Command Reference, and Hardware Installation guides. For information on additional features and fixes that were committed to the Cisco SD-WAN solution, see the Resolved and Open Bugs section in the Release Notes. What's New in Cisco IOS XE (SD-WAN) Release 17.x Cisco SD-WAN Routing Configuration Guide, Cisco IOS XE Release 17.x 3 What's New in Cisco IOS XE (SD-WAN) Cisco SD-WAN Routing Configuration Guide, Cisco IOS XE Release 17.x 4 CHAPTER 3 Unicast Overlay Routing The overlay network is controlled by the Cisco SD-WAN Overlay Management Protocol (OMP), which is at the heart of Cisco SD-WAN overlay routing. This solution allows the building of scalable, dynamic, on-demand, and secure VPNs. The Cisco SD-WAN solution uses a centralized controller for easy orchestration, with full policy control that includes granular access control and a scalable secure data plane between all edge nodes. The Cisco SD-WAN solution allows edge nodes to communicate directly over any type of transport network, whether public WAN, internet, metro Ethernet, MPLS, or anything else. • Supported Protocols, on page 5 • Configure Unicast Overlay Routing, on page 16 Supported Protocols This section explains the protocols supported for unicast routing. OMP Routing Protocol The Cisco SD-WAN Overlay Management Protocol (OMP) is the protocol responsible for establishing and maintaining the Cisco SD-WAN control plane. It provides the following services: • Orchestration of overlay network communication, including connectivity among network sites, service chaining, and VPN or VRF topologies • Distribution of service-level routing information and related location mappings • Distribution of data plane security parameters • Central control and distribution of routing policy OMP is the control protocol that is used to exchange routing, policy, and management information between Cisco vSmart Controllers and Cisco IOS XE SD-WAN devices in the overlay network.
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