• Tag : VXLAN


vxlan configuration

Hi there I made vEOS lab for bgp evpn switchs and i got some error   when i made vxlan interface configuration .. i add static vlan vni mapping on that interface like this ! interface Vxlan1 vxlan source-interface Loopback1 vxlan controller-client import vlan none vxlan udp-port 4789 vxlan vlan 1000-2000 vni 1000-2000 ! it works..   then i want to extend of range for more vlan useage i changed like this ! interface Vxlan1 vxlan source-interface Loopback1 vxlan controller-client import vlan none vxlan udp-port 4789 vxlan vlan 11-3200 vni 11-3200 ! Then..  Ethernet interface wont up state it told notconnect...
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EVPN L3 Gateway

Description This feature adds control plane support for inter-subnet forwarding between EVPN networks. This support is achieved by advertising received EVPN IP Prefix routes (Type-5) with next-hop self. VXLAN and MPLS encapsulation are supported, and the encapsulation type used for advertised routes is dependent on the encapsulation type configured for EVPN peering. The following diagram shows an example topology where an EVPN VXLAN network exchanges Type-5 routes with an EVPN MPLS network.   Within the EVPN VXLAN and EVPN MPLS network, EVPN routes are exchanged as normal. The L3 gateway functionality is achieved by GW1/2 and GW3/4 advertising received type-5...
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EVPN VXLAN single-gateway centralized routing

Description In a traditional EVPN VXLAN centralized anycast gateway deployment, multiple L3 VTEPs serve the role of the centralized anycast gateway.  In order for hosts to have a consistent ARP binding for any of the individual centralized gateway VTEPs, each VTEP operating as a centralized gateway is configured with a virtual router MAC (VARP MAC), and a virtual VTEP IP (VARP VTEP IP), that is shared between all of the L3 VTEPs operating as centralized gateways.  Each centralized gateway VTEP also advertises an EVPN type-3 route for both its primary VTEP IP and VARP VTEP IP, so both IPs end...
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Mss fortigate, cvx, cvp and Arista L3LS

Hi master. My customer has infrastructure Arista 2spine and 4leaf. They want to deploy new firewall Fortigate HA = 2 unit and Cloudvison appliance with MSS features. I’m reading and learn concept mss configuration on cvx and Fortigate, but there is something I’m not understanding about config mss on cvx. Arista Macro Segmentation Service integration with Fortinet Firewalls The link at the top, define command on cvx “type Fortinet fortimanager”My customer asks for me, how about not used /without the fortimanager? It is can used mss features, configuration or not?   Please advise and share your experience and link recommended.     Thanks   Robma bayu    

EVPN VXLAN Support for Wireless APs

Description Typical Wi-Fi networks utilize a single, central Wireless LAN Controller (WLC) to act as a gateway between the wireless APs and the wired network. Arista differentiates itself by allowing the wireless network to utilize a distributed set of aggregation switches to connect APs to the wired network. This feature allows a decentralized and distributed set of aggregation switches to bridge wireless traffic on behalf of the set of APs configured to VXLAN tunnel all traffic to those aggregation switches, or their “local” APs. This is an extension of the VXLAN VTEP to VTEP bridging feature (https://eos.arista.com/eos-4-22-1f/vxlan-vtep-to-vtep-bridging/) which supports only...
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EVPN Control Plane Support for MSS

Description This feature enables support for Macro Segmentation Service (MSS) to insert security devices into the traffic path for VXLAN networks using an EVPN control plane. With this feature enabled, CVX will continue to monitor the network via NetDB state and will initiate intercept and offload rules. With this feature enabled, MAC and IP reachability information will be learned and distributed in user configured L2 domains via EVPN. There are two options for pairing MSS and EVPN: Option 1: MSS + EVPN asymmetric IRB Option 2: MSS + EVPN symmetric IRB with VXLAN bridging to firewall (see https://eos.arista.com/eos-4-20-1f/evpn-irb-with-vxlan-underlay/ for details...
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VxLAN VTEP counters on 7020R, 7280R, 7280R2, 7500R, and 7500R2 series

Description The VxLAN VTEP counters feature allows the device to count VxLAN packets received and sent by the device on a per VTEP basis. Specifically, it enables the device to count bytes and packets that are encapsulated and decapsulated as they are passing through. The counters are logically split up in the two VxLAN directions: “encap” counters count packets coming from the edge, encapsulated on the device and directed to the core “decap” counters count packets coming from the core, decapsulated on the device and heading towards the edge. To be able to count VxLAN packets the device has to...
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What is the meaning of this command?

In EVPN configuration guide, I read the following command has been used: ip address virtual source-nat vrf A address But I could not find any documentation to explain this command. What is used for? and How to use it? Please give some hint about this command. Thanks.

IPv6 Underlay Support for VXLAN With EVPN Control Plane

Description Several customers have expressed interest in using IPv6 addresses for VXLAN underlay in their Data Centers (DC). Prior to 4.24.1F, EOS only supported IPv4 addresses for VXLAN underlay, i.e., VTEPs were reachable via IPv4 addresses only. This feature enables a VTEP to send VXLAN Encapsulated packets using IPv6 underlay. The following list describes the capabilities of this feature. The feature is designed for a Greenfield deployment environment, i.e., an environment where all VTEPs communicate using IPv6 underlay only. In such deployments, the VTEPs must be configured with an IPv6 address on the VXLAN source interface. And all VTEP-VTEP VXLAN...
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4-way L2 ECMP support for EVPN VXLAN All-Active Multihoming 

Description As of EOS 4.22.0F, EVPN all-active multihoming is supported as a standardized redundancy solution.  Redundancy provides not only better fault tolerance but also a way to load balance unicast traffic for better efficiency.  The EVPN VXLAN 4-way L2 ECMP feature allows a Customer Edge (CE) to perform Equal Cost Multi-Path (ECMP) unicast VXLAN switching to a remote CE that is multihomed to at most four Provider Edges (PE).  This feature overcomes the existing 2-way ECMP limitation by providing up to 4-way ECMP. Platform compatibility Platform Independent. (Subject to any and all platform compatibility limitations listed in EVPN Extension to...
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VXLAN Unresolved ARPs to

We have stand for test VXLAN between different DCs (schema in attachment). All Leafs connected to CVX server on each DC. And each CVX connected between themeslaves via BGP EVPN. For test in each leaf was connect server with linux and configured port on access VLAN100. Next step I configure assotiation VLAN100 and VNI25100. MAC Lerning good work and on both leaf I see mac-addreses. Connection for vxlan configured in GRE tunnel and has good L3 connectevless. But traffic has no on VNI 25100. I tried to debug this problem and discovered: show vxlan config-sanity category result detail ———————————- ——–...
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G’day, I am looking for some guidance as well as real life experience, gotchas, etc (if someone has done something similar it will be great to hear some thoughts). I am working on a design of 50+ DCs, meaning I’ll have 50+ fabrics across the globe. The requirement is to support multi-tenancy across all the sites and the only “relief” here is I only need to support layer3! That being said, I am considering multi-site, multi-pod architecture running route-servers within and between all sites. My current idea is to have three major sites (regions) – US, EMEA & APAC. In...
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RACL on inner IP fields for VXLAN decapsulated packets

Description This feature introduces support for ACL configuration on VXLAN decapsulated packets. The configured ACL rules will be applied to the inner packet header after VXLAN header decapsulation. Ingress ACLs for VXLAN decap packets can be configured on SVIs or on the Vxlan tunnel interface. Platform Compatibility DCS-7280R/R2 DCS-7500R/R2 Configuration No special configuration is needed to enable RACLs on SVIs to match inner header fields for VXLAN decapsulated packets. interface Vlan100 ip address ip access-group vxlanAclIpv4CoreToEdge in ! interface Vxlan1 vxlan source-interface Loopback0 vxlan udp-port 4789 vxlan vlan 100 vni 20000 vxlan flood vtep ! ip...
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EVPN Transit Route VRF Leaking

Description As described in the L3 EVPN VXLAN Configuration Guide, it is common practice to use Layer 3 EVPN to provide multi-tenancy within a datacenter. This is achieved by keeping each tenant’s prefixes in separate VRFs.   In order to allow hosts from different VRFs to communicate with each other, a new mechanism lets the Spine act as a VTEP to which cross-VRF traffic will be directed for leaking.   The Spine will: Import specific learned IP or IPv6 prefixes belonging to one VRF into another Advertise these leaked routes to relevant EVPN neighbors (Leafs) with itself as next-hop. Furthermore,...
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Migrating from legacy DC design to EVPN VXLAN Fabric

Introduction This document is intended to provide a reference of steps and sequence followed for:  (1) migrating a legacy 3-tier L2 network to EVPN based VXLAN environment using Leaf & Spine design (2) migrating an L2 Leaf & Spine network with VXLAN using CVX as the control plane to EVPN based control plane (3) migrating an L2 Leaf & Spine network with VXLAN using static VXLAN as the control plane to EVPN based control plane. Scope The key objective of this report is to migrate a Layer 2 datacenter to EVPN based VXLAN using Leaf & Spine (L3LS) solution for...
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EVPN Internetworking with IPVPN

Description This feature adds control-plane support for inter-subnet forwarding between EVPN and IPVPN networks. It also introduces a new BGP path-attribute, D-PATH, that may be used for loop prevention when internetworking between EVPN and IPVPN domains. The supported transport type for IPVPN networks is MPLS, while EVPN networks may use MPLS or VXLAN. The following diagram shows an example topology where a DC EVPN-VXLAN cloud is connected to an MPLS-VPN cloud via border leaf nodes peering with both EVPN and IPVPN. The MPLS-VPN cloud is then connected to a DC EVPN-MPLS cloud, where the border leaf nodes peer with both...
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EVPN VxLAN control plane support for OpenStack

Description This feature enables support for an EVPN VxLAN control plane in conjunction with Arista’s OpenStack ML2 plugin for automated network provisioning. When utilizing this feature: VCS (Vxlan Controller Service) on CVX (CloudVision eXchange) will be responsible for dynamically provisioning VLAN to VNI mappings on switches based on OpenStack configuration The OpenStack service on CVX will be responsible for dynamically provisioning VLANs and allowing them on applicable trunk switchports on switches EVPN will be responsible for distributing and configuring flood lists based on  EVPN type 3 IMET routes and host reachability based on type 2 MAC-IP routes This feature is...
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VCS to EVPN hitless migration

Description This feature enables support for migrating from only using VCS as the control plane to only using EVPN as a control plane in a hitless manner with respect to L2 reachability information. Platform compatibility Platform Independent (Subject to any and all platform compatibility limitations of both VCS and EVPN) Configuration Assume that initially only VCS is configured as the control plane.  The step-by-step migration process is as follows: Check VCS L2 reachability information in L2Rib: Use the following show commands to verify that L2 reachability information is in L2Rib’s input and output: show l2Rib input vxlan-control-service show l2rib input...
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Description Starting with EOS release 4.22.0F, the EVPN VXLAN L3 Gateway using EVPN IRB supports routing traffic from one IPV6 host to another IPV6 host on a stretched VXLAN VLAN. This TOI explains the EOS configuration and show commands. Platform Compatibility Platform supporting ND Proxy and ND Suppression DCS-7280R/7280R2 DCS-7050CX3-32S-F DCS-7050SX3-48YC12-F (Starting in 4.22.1F) DCS-7050SX3-48YC8 (Starting in 4.22.1F) DCS-7050/7050X/7050X2 (Starting in 4.22.1F) DCS-7260X/7260X3 (Starting in 4.22.1F) DCS-7060X/7060X2 (Starting in 4.21.1F) DCS-7250 (Starting in 4.22.1F) DCS-7300/DCS-7320 (Starting in 4.22.1F) Platform not supporting ND Proxy, No ND Suppression  DCS-7020R DCS-7160 DCS-7500R/7500R2/7500E Configuration Enable IPv6 Routing Enable global IPv6 unicast routing and IPv6...
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Problem with EVPN type-5 packet forwarding on vEOS

Hello, I am testing a solution based on VXLAN EVPN, with Type-5 routes, with vEOS, but I am having some issues in packet forwarding. The routes are correctly propagated, but when I try to ping from a device connected to one node, on a device connected to another node, the ping does not work. I also tried a ping, with a forced source IP, from the vEOS machine itself, but it has problems too. LEAF-2 LEAF-2#sh ip route vrf gold VRF: gold Codes: C – connected, S – static, K – kernel, O – OSPF, IA – OSPF inter...
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