Arista Any Cloud Platform – Security Use Case

Introduction In this document we will demonstrate how to effectively leverage Arista’s vEOS Router in a Transit – Edge VPC model to satisfy a common security use case. As most companies look to move into the public cloud space, security vulnerabilities have gained more focus than ever before. Objective Provide a centralized security model within an AWS region, which will allow for ease of visibility and control. Deploying separate AWS Internet Gateways in every VPC, increases complexity and vulnerabilities in the public cloud space.  Prerequisites This document assumes that you have the following architecture deployed: A Transit – Edge VPC topology deployed...
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Agent unable to connect to Sysdb

I’m relatively new to EOS, so I feel like I’m probably missing a basic step. I’ve setup a vEOS testlab, running under KVM.  Most things have been going well, the virtual switches can see each other, i’ve been able to test some ZTP scripts. I’m getting stuck however when it comes to running an agent using the python sdk.  I’m attempting to start the from this example ( However, all I get when looking at the agent logs is “waiting for connection to Sysdb …..” and it never connects. veos-vdf-core1#configure veos-vdf-core1(config)#daemon HelloWorldAgent veos-vdf-core1(config-daemon-HelloWorldAgent)#show active daemon HelloWorldAgent exec /mnt/flash/ no...
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Arista eapi multiple commands not working

Hi, When I’m trying to use Arista veos eapi to configure vlan on an interface using multiple commands, it is failing (single command is working fine like “show vlan”, “show version”). It is not showing any response and in the background also configuration is not happening on the virtual switch. Please help me if I’m missing anything. I’m using VEOS (virtual switch) for my testing. Following are commands I’ve used and attached the screenshot of eapi. Thanks in advance   enableconfigureinterface Ethernet1switchport access vlan 745show vlan 745

vEOS on GENI Experimental Portal

Hi, I am trying to use vEOS on GENI experimental portal as it seems ideal for my requirements. To do this I need to create a GENI image as given by So I tried to use vEOS 4.16.9M with Aboot 2.1.  But according to the GENI guide mentioned above, I need to create and save the OS image locally (in the guest VM). I am unable to mount an extra disk drive to my virtualbox (or use the pendrive). If you could help me with this, I would appreciate it greatly. Also, I tried to use the .swi file...
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Running vEOS in Openstack

I’m trying to setup a vEOS lab environment in our internal Openstack infrastructure.  This is what I’ve done so far:- Uploaded the ABOOT image (Aboot-veos-8.0.0.iso) & the VMDK (EOS-4.18.0.vmdk) to Glance. Create a volume based on the VMDK Launch an instance from the ABOOT image with the Volume mapped to the instance:- nova boot –flavor m1.small \                 –image <aboot image ID> \                 –nic net-id=<Neutron Net ID> \                –block-device id=<Volume ID>,source=volume,device=hdb,dest=volume,shutdown=preserve \                veos-test-01 However, the instance hangs after loading the initrd & doesn’t run aboot. Has anyone tried this / had this working?

Management interface down

I am running arista veos in vmware workstation. All the interfaces are working fine except the management interface. Status: down, Protocol: not present. I have configured the IP for the management interface, and I am able to ping it from the host. But ping fails 50% of the time

Configuration Session on vEOS

Hello everyone, I got the vEOS running on Virtualbox integrated with GNS3, so far everything running fine. Im trying to find out if the configuration session feature is not available on the vEOS or maybe im missing somthing. I’ve tried to issue the command : configure session from enable mode but it looks like there is no such command. Did anyone else encountered the issue?   Best Regards, Chen.

Understanding EOS Software Download Options

This post is to help explain the different Software Download options for a particular EOS release. For recommendations on which train or version of EOS you should use, please take a look at our Software Lifecycle, and Recommended Release pages. This advice only concerns images located in the Active and Support Only Releases folder. Images from the Other Releases and EFT folders are not for general use. Those releases are available only for specific deployments, and should only be used when specifically recommended by Arista. In this case, I’m taking a look at EOS-4.17.1F and you can see from the...
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vEOS BGP fails to establish with Cumulus VX

I’m running vEOS (4.17.0F) in a KVM hypervisor along with an instance of Cumulus VX 3.0.1. I’m attempting to bring up a simple BGP session between the devices through a virbr virtual network, but AFACT the vEOS instance is failing to ack any SYN packets to TCP/179 coming from the Cumulus instance; every 30 seconds the vEOS instance sends a SYN to TCP/179 to the Cumulus instance, which then sends a SYNACK back…which vEOS doesn’t acknowledge either. I’m not seeing any oddities WRT the BGP configs or basic reachability (the fact that I do see SYNs going in both directions...
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Saving configuration

Hello, i am quite new to Arista. So i am using Arista vEOS to do some projects. And after finishing one project, i use the “wr” command to save my running configuration. And when i start another new project, the configuration of the previous project is now in my new project. For example, in project 1, i simply changed my hostname to “New”, and saved the configuration. Then if i start a new project using the same device, the hostname is already the name i changed which is “New”. This is not what i want, what i want is whenever...
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Difference between Aboot-veos-serial-8.0.0.iso vs Aboot-veos-8.0.0.iso

Hi Team, i have asked many questions over here on this forum but hardly people answer to my query.this time i hope i will get my answer.My confusion start when i see this 2 supportive file for arista vEOS (Aboot-veos-serial-8.0.0.iso vs Aboot-veos-8.0.0.iso).which one should i use and why . what one have advantage over other.recently i checked download section  and found new vEOS 4.16.6M released by Arista is it just bug fix or any new feature added in this .please answer to my query  

Valid Python Scripts may fail in OS X ‘El Capitan’

Python scripts can be run on OS X using eAPI to access Arista Switches or vEOS instances. Python Scripts can also be run on OS X to automate the installation of vEOS: ( After installing or upgrading to OSX ‘El Capitan’ (OS X version 10.11.5) Python Scripts that previously worked fine under earlier versions of OS X or work on other operating systems may fail. This is evident when making a Python Script executable after issuing the chmod +x command.  This is due to operating system changes Apple has introduced in ‘El Capitan’. Although, this problem may affect eAPI and...
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VRF import export

Is there a way to perform a VRF import and export target? Similar to: ip vrf wanconnection:1 rd 65000:1 route-target export 65000:2 route-target import 65000:99 ip vrf wanconnection:2 rd 65000:2 route-target export 65000:1 route-target import 65000:99 ip vrf shared:1 rd 65000:99 route-target export 65000:99 route-target import 65000:1 route-target import 65000:2

Puppet Agent installation

Hi there, I’m experiencing some issue with the Puppet agent installation on a vEOS switch running on VirtualBox. I’m following this ( When it comes to the Agent installation, I’ve downloaded the two All-in-One packeges from the above link (puppet-agent-1.2.7-1.eos4.i386.swix and rbeapi-puppet-aio-0.4.0.swix). Then, the guide suggests to do some tests to verify that everything is fine. Anyway, any test return the same error: “/bin/bash: puppet: command not found” I tried to switch to the root user. Here, after I configured proper path (PATH=/opt/puppetlabs/bin:$PATH;export PATH), the puppet command start to work and I can now verify Puppet version: -bash-4.1# puppet –version 4.2.3 -bash-4.1# facter...
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Getting EOS-lan image online via Qemu

Sorry about the previous post. I tried editing it, but but it wiped out the question, which deleted the entire post. Long story short, I can get the vEOS image online via a setup in GNS3, but the download speeds are abysmal. I can get other non-vEOS images online outside GNS3 via the CLI, and the speeds are lightning fast. Here’s what I tried in gnome-term: qemu-system-x86_64 -hda vEOS-lab-4.15.2F.vmdk -boot order=d -cdrom Aboot-veos-serial-2.0.8.iso -m 2048 -enable-kvm -netdev user,id=network0 -device e1000,netdev=network0 -serial telnet::3355,server,nowait   The image loads fine (provided I use a second term to telnet into the vEOS term window)....
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unable to load EOS image in OpenStack/KVM

Hello all, Recently I tried to install the vEOS on KVM/OpenStack. In OpenStack, I created two images for Aboot and vEOS vmdk files. An instance is created with the Aboot image to get it loaded properly and the vEOS vmdk image is attached as a storage (Attached To vEOS 4.15.0F on /dev/vda). Unfortunately, the instance loads and stopped with error in the attached screenshot. It seems the Aboot image is unable to find the attached storage in order to load the EOS image. Wondering if you experienced this and have a solution / workaround. Thanks, Steven