Tag: evpn

EVPN Service Modes

EVPN is a standards-based BGP control plane to advertise MAC addresses, MAC and IP bindings and IP Prefixes. EVPN be used for both layer 2 services including p2p services and p2mp services and layer 3 services. The beauty of EVPN is, it provides single control plane solution for both Layer 2 and Layer 2 services …


VxLAN EVPN Symmetric IRB

The EVPN introduced the concept of Integrated Routing and Bridging based on EVPN to address inter-subnet communication between VMs which are belong to different VxLAN segments. It is also called inter-VxLAN routing with 2 options; Symmetric IRB and Asymmetric IRB. In the asymmetric IRB we only have the concept of L2VNI. We also have another …


VxLAN EVPN IRB Overview

The distributed IP anycast gateway applies the anycast network concept“one to the nearest association.” Anycast is a network addressing and routing implementation in which the data traffic from an endpoint is routed topologically to the closest node in a group of gateways. The function of the Anycast Layer 3 gateway is natively embedded with the …


VxLAN Bridging with EVPN Control Plane

VXLAN allows us to create layer 2 networks over layer 3 infrastructure. The VXLAN base use case is to connect two or more layer three network domains and make them look like a common layer two domain. In the Data center environment this allows virtual machines on different networks to communicate as if they were …


VxLAN Fundamentals

VXLAN allows us to create a logical topologies in the Data Center for our virtual machines. With VxLAN we are able to create a layer 2 network on top of layer 3 infrastructure. In the Data Centers VMs needs to be deployed in a specific segment of the network. These VMs can be moved from …


EVPN Introduction

EVPN is a standards-based BGP control plane to advertise MAC addresses, MAC and IP bindings and IP Prefixes. It can be used for both layer 2 services including p2p services and p2mp services and layer 3 services. First standards for EVPN defined to usage over MPLS (including SR-MPLS) data plane but it is also possible …


Underlay Design for VxLAN EVPN Networks

With the rapid evolution of SDN, industry have started to separate networks as Underlay and Overlay. An overlay is a virtual network that is built on top of an underlying network infrastructure, underlay. It is the underlying network responsibility to deliver packets across networks. Here are summary of Underlay and its characteristics; –       Physical infrastructure which …