VxLAN

Understanding Policy-Based Routing in Data Center Fabrics: VxLAN EVPN

Leave a Comment /

Policy-Based Routing (PBR) is the foundational mechanism for achieving redirection by utilizing access lists (ACLs) to match criteria beyond the destination IP, combined with route maps to define an alternate next-hop. This blog focuses on selective redirection of traffic flows originating from specific internal subnets toward external path different than the routing protocol calculates and installs for external destination.  

Understanding Policy-Based Routing in Data Center Fabrics: VxLAN EVPN Read More »

VXLAN EVPN vPC Attached External / L4-L7 Configuration – BGP

2 Comments /

Overview In a VXLAN EVPN fabric, establishing external routed connectivity and integrating Layer 4 to Layer 7 (L4-L7) services are crucial for ensuring network security and optimizing traffic flow. Typically, external routed connections are linked to specific leaf switches known as border leaf switches. These switches handle traffic entering and exiting the VXLAN fabric. On

VXLAN EVPN vPC Attached External / L4-L7 Configuration – BGP Read More »

VXLAN EVPN Multi-Site – NDFC

5 Comments /

Belete Ageze 2xCCIE | CCDE In today’s fast-paced digital realm, businesses continually seek ways to swiftly provide adaptable services, meeting ever-changing customer expectations. They aim to enhance agility and productivity to maintain a competitive edge, while also optimizing costs and identifying opportunities for savings.. VxLAN EVPN Multi-site architecture stands out as a robust solution, addressing

VXLAN EVPN Multi-Site – NDFC Read More »

Configure DHCP in VxLAN EVPN Fabric

Leave a Comment /

This blog delves into the intricacies of DHCP (Dynamic Host Configuration Protocol) setup within a multi-tenant VXLAN EVPN fabric. VXLAN EVPN offers the capability to segment networks logically within data centers, facilitating the creation of distinct network environments for various tenants. However, the question arises: how can you guarantee that each tenant’s devices seamlessly acquire

Configure DHCP in VxLAN EVPN Fabric Read More »

Cisco VxLAN EVPN Route Leaking – 2 (NDFC)

Leave a Comment /

Overview This blog is a continuation of ‘Cisco VxLAN EVPN Route Leaking – 1’ – https://deliabtech.com/data-center/cisco-vxlan-evpn-route-leaking-1/ . The focus is on configuring route leaking through the use of Nexus Dashboard Fabric Controller (NDFC). Topology Goal – Green vrf imports Blue & Orange vrfs and Blue & Orange vrfs import Green vrf Assumptions Configuration 1. log

Cisco VxLAN EVPN Route Leaking – 2 (NDFC) Read More »

Cisco VxLAN EVPN Route Leaking – 1

Leave a Comment /

Overview Route leaking in Cisco VXLAN EVPN fabrics plays a critical role in enabling communication between workloads residing in different L3 VXLAN Network Segments (VNIs), VRFs. It essentially allows these workloads to seamlessly access resources and services provided by shared services or external networks. VRF (Virtual Routing and Forwarding) – VRFs are leveraged to establish

Cisco VxLAN EVPN Route Leaking – 1 Read More »

VxLAN EVPN Fabrics External Connectivity – VRF Lite

Leave a Comment /

Overview VXLAN EVPN fabrics address the need for workload mobility, flexible resource allocation and multi-tenancy by decoupling workloads from the underlying physical infrastructure. This enables to treat workloads as portable units that can be easily moved across different compute resources within the data center. Workloads in the data center need the ability to connect to

VxLAN EVPN Fabrics External Connectivity – VRF Lite Read More »

NDFC VxLAN EVPN Fabric – Brownfield

Leave a Comment /

Overview NDFC’s brownfield deployment approach streamlines the migration of existing VXLAN EVPN fabrics, previously set-up via CLI or custom scripts. This transition empowers centralized management through a user-friendly web interface, simplifying configuration tasks, promoting consistency across the fabric, and facilitating troubleshooting efforts. The migration process involves fabric discovery, configuration import from the existing environment, and

NDFC VxLAN EVPN Fabric – Brownfield Read More »

Underlay Multicast Routing for VxLAN BUM Traffic

Leave a Comment /

Belete Ageze – 2xCCIE | CCDE Overview While Cisco VxLAN leverages BGP EVPN for the control plane, it requires mechanisms to manage Broadcast, Unknown Unicast, and Multicast (BUM) traffic within the VxLAN fabric. VxLAN fabrics typically rely on multicast replication in the underlay network to efficiently forward BUM traffic. Although ingress replication serves as an

Underlay Multicast Routing for VxLAN BUM Traffic Read More »

VxLAN EVPN Multi-Site Configuration

1 Comment /

VxLAN EVPN Multi-site architecture is one of the widely deployed DC network solutions that can be scaled to thousands of switches across a wide range of geographical regions. VxLAN and MPBGP creates a powerful technology used to build a large, secure, and resilient multi-tenant web scale fabric that can scale to host hundreds of thousands of systems. In this document, VxLAN EVPN Multisite with two sites (SITE1 and SITE2) and inter-site network (ISN) will be configured for seamlessly extending layer 2 and layer 3 using anycast BGWs. All configurations necessary for full operation will be included…

VxLAN EVPN Multi-Site Configuration Read More »