Cisco bgp evpn vxlan with headend replication part 1. The cisco nexus v switch is designed to assume that either all or none of the physical nics pnics in a port channel support the vxlan. Dec 14, 2015 ooook, here is another configuration example for the cisco implementation for vxlan using bgp evpn for distributed controlplane operations. Config files were updated to enable vxlan and the openvswitch agent was reloaded on all nodes and the neutronserver on the controller node. Vxlan design with cisco nexus 9300 platform switches cisco. Welcome to part 5, where we start on the real configuration.
This guide explains how to configure erspan on an extrahop discover appliance with a cisco nexus v switch that is running on a windows machine. Cisco nexus v for vmware vsphere vxlan configuration. Figure 1 shows a topology in which a software application running directly on physical server 1 in the physical network needs to communicate with virtual machine vm 1 in vxlan 1 and vice versa, and another software application on physical server 1 needs to communicate with virtual machines vm 3 and vm 4 in vxlan 2 and vice versa. Vxlan identifies individual layer2 domains using a 24bit virtual. Vxlan routing and control plane on nexus 9000 series. Apr 14, 2014 contents introduction prerequisites requirements components used background information about vxlan vxlan requirements vxlan modes multicast mode unicast mode configure enable the vxlan feature verify that the feature is. Cisco nexus 6004x vxlanready switch learn how the cisco nexus 6004x delivers deployment flexibility and high density 40 ge for access and aggregation layers. It is not possible to configure vpc on a pair of switches consisting of a nexus 7000 series and a nexus 5000 series switch. Dccnx configuring cisco nxos switches and fabrics in the data center v1. Sep 11, 20 enhanced vxlan in nexus v theater presentation from vmworld 20. Ethernet vpns evpns enable you to connect groups of dispersed customer sites using layer 2 virtual bridges, and virtual extensible lans vxlans enable you to stretch layer 2 connection over an intervening layer 3 network, while providing network segmentation like a vlan, but without the scaling limitation of traditional vlans. I am using cisco 9396px devices for leaf switches and cisco 9508 chassis switches for the spine using ibgp.
There is a mention of vxlan in the latest release notes as bug in a certain instance. I thought why not trying the easier one, which was already tested a lot of times over the last 12 years. Cisco nexus v vxlan configuration guide, release 4. Describe the features and functionality of the cisco nxos. This cisco nexus v switch for vmware vsphere white paper investigates the. The encapsulated remote switched port analyzer erspan enables you to monitor traffic on multiple network interfaces or vlans and then send the monitored traffic to one or more destinations. Whenever i try to add host to dvswitch it tries to enable the vxlan agent and it fails. During the configuration of vxlan, it is required to allocate a multicast address range and also define the number of logical layer 2 networks that will be created. As mentioned in the previous post, the v essentials licensing freemium is all that is required to get some vxlan stuff going. Cisco nexus 6004x vxlanready switch cisco video portal. Best practices for deploying vxlan with nexus v and. In this topology, im running ospf 1 between nexus 1, 2 and 3 and enabled it on a loopback interface on each nexus with the following ip addresses. Vxlan, or virtual extensible lan, is a recent proposed standard technology from vmware and cisco. With vxlan, when a virtual machine sends a frame, it is encapsulated in a udp packet along with a 24bit segment identifier that uniquely identifies the bridge domain and provides a dedicated logical network figure 10.
Dccnx configuring cisco nxos switches and fabrics in. Vem 2 vm source mac remote host vm source mac remote host vxlan ip vxlan ip vm2. Nexus 9000 vxlan evpn, vpc, and vxlan routing come route. The same should be used for any port channels on the physical switches. The vxlan udp port number is used in vxlan encapsulation. Vxlan evpn defacto standard, open and interoperable. Cisco nexus v switch for vmware vsphere configuration. Prepare vxlan fabric on the cluster and add it to provider vdc. May 16, 2015 yet another long delay between posts, but this one is worth the wait.
I deployed a vxlan fabric using ciscos nexus 9k switches recently, and started seeking out the best way to do things. The video looks into virtual extension lan vxlan support on cisco nexus v. When vxlan is extended to provide layer 2 and layer 3 connectivity between fabrics that are deployed in separate physical locations, it is often compared to a technology such as otv, which was built from. I got to assist my super bad ass coworker on a nexus 9000 vxlan evpn deployment this past week, and what an adventure it was there were ups and downs, and long nights in the data center i feel bad since it was much worse for my coworker. A new tenant was created as was a network using vxlan but no instances on this new tenant network will boot properly nor. Cisco virtual port channel vpc is a virtualization technology, launched in 2009, which allows links that are physically connected to two different cisco nexus series devices to appear as a single port channel to a third endpoint.
Vxlan series multicast usage in vxlan part 3 vmware. Aug 10, 2014 i wrote a bit about basic v information a bit ago with a promise to write about some misadventures with vxlan on the platform. Vxlan implementation on cisco nexus 9000 series switches cisco nexus 9000 series switches support the hardwarebased vxlan function that extends layer 2 connectivity across the layer 3 transport network and provides a highperformance gateway between vxlan and nonvxlan infrastructures. Sep 10, 2012 vm1 communicating with vm2 in a vxlan mac. The cisco nexus v supports bgp peering between 16 vsms to allow vxlan segments to reach across servers. Mar 01, 2018 welcome to part 5, where we start on the real configuration. On the heels of its release the nexus v for microsoft hyper v won the best of show in the virtualization category at microsofts tech ed conference. I came up with a few questions that need to be answered first, and a configuration that i believe is best to use for most deployments. Lets now take a look how multicast is utilized in vxlan deployments. The cisco nexus v uplink port profiles and all interconnecting switchesrouters in between the esx hosts must have. Describe the differences between the cisco ios and nxos operating systems.
The vpc peers must run the same nxos version except during the nondisruptive upgrade, that is, inservice software upgrade issu. Remove nexusv switch from the now empty cluster and extend vxlan vds there or create a new one if no l2 connectivity exists between clusters. Vxlans on cisco is controlled by cisco hardware while vxlans on nsx is controlled by nsx controllers and they dont really exchange vxlan information. Vxlan transport networks deploy a vmkernel interface for vxlan on each host. I was thinking nexus 9000v doesnt support intervxlan routing at data plane. Vxlan allows vlan id to be extended to 24 bits, or in other words, essentially increases number of available vlan from 4096 to more than 16 million vlan. Cisco nexus 5000 series switch cli software configuration guide, nxos 4. Enhanced vxlan in nexus v theater presentation from vmworld 20.
For more information, see the cisco nexus v port profile configuration guide, release 4. Virtual extensible lan vxlan enables you to create a logical network for your virtual machines across different networks. In this case the vxlan network is called overlay network. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Cisco nexus 6004x vxlan ready switch learn how the cisco nexus 6004x delivers deployment flexibility and high density 40 ge for access and aggregation layers. In this lab, we intentionally have vem control interfaces separated by layer 3 to demonstrate macinip encapsulation. The endpoint can be a switch, server, router or any other device such as firewall or load balancers that support the link aggregation technology etherchannel. Ensure that you install or upgrade the virtual supervisor module vsm to the current release of cisco nexus v software.
I covered some basics on multicast in the last blog entry here. Nexus 9000 vxlan evpn, vpc, and vxlan routing come. Its the same technology vxlan protocol but different use case. Cisco nexus v switch for vmware vsphere some links below may open a.
Vxlan with external routing on eveng using cisco nexus v9k code 7. The below diagram details a vxlan fabric deployment. Arista design guide data center interconnection with vxlan. A vxlan tunnel runs over an existent network which is called underlay network. I am seeing conflicting information on the web, but cannot see any details in any of the configuration guides, or vxlan listed on the data sheet for that series.
If you are looking to practice vxlan evpn but you dont have a bunch of cisco nexus 9k laying around, just download. Vxlan support on nexus 5500 5548up cisco community. Vxlan was originally designed for intradata center fabric deployments. If the cisco nexus v is using a port channel for its uplinks, then the load distribution algorithm should be set to use a 5tuple hash ipl4l4 ports. Basic vxlan configuration cisco just implemented vxlan capabilities into the newest version of the nexus v, and i was eager to try them out. Vxlan allows vlan id to be extended to 24 bits, or in other words, essentially increases number of available vlan. The border gateway protocol bgp control plane feature enables the cisco nexus v to exchange the vxlan information collected on the. Vmware nsx installation part 8 configuring vxlan on the. Vxlan network with mpbgp evpn control plane design guide cisco. Find answers to vxlan nexux vtep from the expert community at experts exchange. While this solution seemingly conflicts with the vxlan design objective of not relying on a control plane, it provides an optimal solution within nexus vbased virtual network environments. Sep 06, 2017 vxlan with external routing on eveng using cisco nexus v9k code 7.
Vxlan fabric using evpn with cisco nexus 9000 switches. Describe how the cisco nxos is used for functionality specific to different cisco nexus switching platforms, such as the 7000. Vxlan enables an architectural maximum of over 16 m logical networks. Vxlan routing and control plane on nexus 9000 series switches lilian quan technical marketing engineering, insbu chad hintz tsa, us commercial. You can create a layer 2 network on top of your layer 3 networks. Once cluster preparation is completed, it time to configure the vxlan. It can be downloaded from the cisco website for free with your cisco cco. Feb 08, 2012 basic vxlan configuration cisco just implemented vxlan capabilities into the newest version of the nexus v, and i was eager to try them out.
Jun 24, 20 the microsoft hyper v version of nexus v was officially released this month, and just like its vmware vsphere companion, there is a free version users can download and deploy. Arista design guide data center interconnection with vxlan 6 introducing the arista networks dci with vxlan solution vxlan was designed for the creation of logical layer2 domains on top of an underlying ip network, initially to enable network virtualization in the data center. During the configuration of vxlan, it is required to allocate a multicast address range and also define the number of logical. I wrote a bit about basic v information a bit ago with a promise to write about some misadventures with vxlan on the platform. I got to assist my super bad ass coworker on a nexus 9000 vxlan evpn deployment this past week, and what an adventure it was. The microsoft hyper v version of nexus v was officially released this month, and just like its vmware vsphere companion, there is a free version users can download and deploy. Yet another long delay between posts, but this one is worth the wait. In this tutorial video, well move beyond the fundamentals and have a configuration technical deep dive, with vteps, multicast for. The cisco nexus v vxlan gateway is deployed as a virtual services blade vsb. I followed steps stated on a cisco document but intervxlan doesnt work, at least data doesnt pass between vxlans.
May 06, 20 i covered some basics on multicast in the last blog entry here. Dccnx configuring cisco nxos switches and fabrics in the. May 16, 20 the video looks into virtual extension lan vxlan support on cisco nexus v. Vxlan wont be functionally integrated with vmware until a patch is released, but in the meantime you can still play around with vxlans to see how they work on the nexus v.