Cisco Implementing and Troubleshooting Cisco EVPN (ICT-EVPN)

Agenda

Module 1: EVPN VXLAN Overview, Evolution, and Key Benefits

• Overview of EVPN VXLAN Technology
• Evolution of Data Center Networking
• Key Benefits of EVPN VXLAN Deployment

Module 2: EVPN VXLAN Fundamentals

• Definition and Key Components
• Explain VXLAN as a network virtualization technology that encapsulates Layer 2 frames within Layer 3 packets, using a 24-bit VXLAN Network Identifier (VNI) to allow for up to 16 million virtual networks.
• Detail the key components: VTEPs for encapsulation/decapsulation, NVE interfaces, VXLAN Tunnel Endpoints, and the EVPN control plane for advanced routing and services.
• Understanding VXLAN Overlay and Underlay Networks
• Overlay Networks: Describe how VXLAN creates a logical network on top of the physical network to support large-scale virtualization.
• Underlay Networks: Discuss the IP network underneath the VXLAN overlay, responsible for the transport of VXLAN packets between VTEPs, emphasizing the importance of network design and routing protocols in the underlay for optimal performance.
• EVPN Control Plane: Role and Operations
• Define EVPN as a BGP-based control plane that offers advanced features over traditional VXLAN deployments, such as MAC address learning, multicast optimization, and multi-homing.
• Explore the operations of the EVPN control plane, including advertisement of MAC/IP address bindings, and how it enhances scalability, security, and network efficiency.

Module 3: EVPN VXLAN Configuration

• Setting Up the Underlay Network
• Guide on designing and configuring the underlay IP network, including the selection of routing protocols (e.g., OSPF, IS-IS, or BGP) to ensure connectivity and optimal path selection between VTEPs.
• Configuring EVPN VXLAN Layer 2 Overlay Network
• Configuring EVPN VXLAN Layer 3 Overlay Network
• Configuring EVPN VXLAN Integrated Routing and Bridging
• Basic VTEP Configuration
• Step-by-step instructions for configuring VTEPs, including setting up NVE interfaces, associating VNIs with NVE interfaces, and configuring source and destination IP addresses for VXLAN tunnels.
• EVPN Instance Setup
• Detailed process for configuring EVPN instances, including creating EVPN routing instances, associating EVPN instances with VNIs, and setting up BGP to advertise and receive routes via the EVPN control plane.

Module 4: EVPN VXLAN Advanced Features

• Integrating Routing and Bridging (IRB)
• Explanation of IRB in EVPN environments, including its role in providing inter-VNI routing and bridging capabilities, and configuring IRB interfaces on VTEPs.
• Deploying Multihoming in EVPN Networks
• Overview of EVPN multihoming concepts, including single-active and all-active modes, and guidance on configuring multihoming to increase redundancy and load balancing.
• Utilizing Q-in-Q Tunneling
• How to implement Q-in-Q tunneling in EVPN VXLAN environments to provide additional layer of VLAN tagging for service providers and multi-tenant data centers.

Module 5: EVPN VXLAN Performance and Scalability

• Tuning EVPN for High Performance
• Techniques for optimizing EVPN performance, including tuning BGP session parameters, leveraging ECMP for load balancing, and minimizing broadcast traffic.
• Scalability Challenges and Solutions
• Discussion of scalability challenges in large-scale EVPN VXLAN deployments and strategies to address them, such as using route reflectors and optimizing BGP advertisement policies.
• Segment Routing Integration for Scalability
• How segment routing can be integrated with EVPN VXLAN to simplify the underlay network, improve scalability, and provide more efficient traffic engineering options.

Module 6: EVPN VXLAN Advanced Routing and Multicast

• EVPN for Efficient Multicast Distribution
• Exploring EVPN\'s role in optimizing multicast traffic delivery, including the use of Inclusive Multicast Ethernet Tag routes and the benefits of IGMP/MLD snooping within VXLAN.
• Routing Protocols in EVPN Networks
• Detailed analysis of the use of BGP, MP-BGP extensions for EVPN, and how to leverage routing protocols for dynamic peering and route advertisement in EVPN networks.
• Leveraging BGP for Dynamic Peering
• Techniques for configuring BGP dynamic peering in EVPN VXLAN deployments to automate the setup of peering relationships and improve network flexibility.

Module 7: EVPN VXLAN Troubleshooting and Maintenance

• Common EVPN Issues and Resolutions
• Identification and resolution of typical EVPN VXLAN issues, including troubleshooting steps for underlay network problems, VTEP configuration errors, and EVPN route advertisement issues.
• Monitoring Tools and Techniques
• Overview of tools and techniques for monitoring EVPN VXLAN networks, including SNMP, syslog, and network telemetry, to ensure operational health and performance.
• Upgrading and Patching EVPN Deployments
• Best practices for safely upgrading and patching EVPN VXLAN deployments, including planning considerations and rollback strategies to minimize downtime.