Bind the NVE source-interface to a dedicated loopback interface and do not share this loopback with any function or peerings of Layer-3 protocols. A best practice is to use a dedicated loopback address for the VXLAN VTEP function. 专口专用。这个倒是可以理解。创建 loopback 又没什么开销,应...
This document describes how to achieve a Virtual Extensible LAN (VXLAN) Ethernet Virtual Private Network (EVPN) Multi-Site design by integrating VXLAN EVPN fabrics with EVPN Multi-Site architecture for seamless Layer 2 and Layer 3 extension. In addition to the technical details, this d...
Configure BGP EVPN on Layer 2 and Layer 3 VXLAN gateways to advertise host information. Run system-view The system view is displayed. Run bgp as-number The BGP view is displayed. Run l2vpn-family evpn The BGP-EVPN address family view is displayed. By default, the BGP-EVPN address family ...
A VXLAN network with distributed gateways uses BGP EVPN routes to dynamically establish VXLAN tunnels and transmit host MAC routes or host IP routes, thereby implementing Layer 2 and Layer 3 communication between devices of the same tenant. To implement Layer 3 multicast in this scenario, the NG...
这周集中聊下K8s的集群网络原理,我初步考虑分成3个方向: Pod-to-Pod通信(同节点 or 跨节点),以FlannelVXLAN 模式为例; Pod/External-to-Service通信,以 iptables 实现为例; Ingress原理,以 NGINX Ingress Controller 实现为例; 其他:(到时候看心情)Flannel host-gw 模式,Calico,…… ...
VXLAN基本原理(2) 一、VXLAN报文封装 VXLAN是IETF定义的NVO3(Network Virtualization over Layer3)标准技术之一。 采用Mac in UDP封装方式将二层报文用三层协议进行封装。 支持24bits的VNI ID ,满足数据中心大二层VM迁移和多租户的需求。 VXLAN头封装:...
A Layer 2 VNI is a common VNI used for intra-subnet VXLAN packet forwarding, whereas a Layer 3 VNI is bound to a VPN instance for inter-subnet VXLAN packet forwarding. VXLAN Gateway Similar to in VLANs, hosts with different VNIs or those on VXLAN and non-VXLAN networks should be unable...
Within a LISP VXLAN fabric per Layer 3 Overlay one instance is used per used VLAN in the fabric there also a Layer 2 Instance. Endpoint Identified (EID): If this is a layer 2 or layer 3 Instance this is the MAC address, IP host route (/32 or /128) or an IP subnet registered ...
VXLAN Layer 2 overlay network over which VMs communicate VXLAN Gateway VXLAN网关 an entity that forwards traffic between VXLANs VXLAN应用场景 VXLAN主要聚焦于数据中心基础设施。 STP和VLAN导致的限制 当前L2网络主要使用802.1D STP协议在多路径基础上避免环路。但是数据中心管理员将之视为L2网络上的问题,因为STP...
While many of the basic test scenarios for VXLAN EVPN Layer-2 and Layer-3 forwarding were extensively tested on all the Platforms, more advanced additions like Tenant Routed Multicast (TRM) or Multi-Site still couldn’t find a capable interoperability partner; this even as fully compliant to th...