Tip for Arista vEOS on VMware ESX 6

Note: This tip was discovered and shared by Sandy Breeze at Claranet   Arista provide the EOS network operating system for test/lab virtual environment under the form of vEOS, either as a VMDK or a SWI (software image to install on an existing vEOS). With the vEOS VMDK as currently provided, in thin provisioning for saving on the file size, ESX4 and 5 would work fine, but upon booting the vEOS VM under ESX6, it will report “LZMA data is corrupt”,  and “system halted”, despite the image not being corrupted (you could verify the checksum). This issue may also manifest itself with an...
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VMTracer ESX port configurations

I am configuring a pair of new Arista 7050T switches in MLAG.  My question relates to port configurations for the ports that will connect to the 6 x ESX hosts.  Each host has 2 dual port NICS and 2 vDS (1 for VM and 1 for IPStorage). Each vDS has a single uplink to each NIC(2 in total) and each NIC is connected to both switches. 1. When using vmtracer is the only config I need on the port “vmtracer vmware-esx” and this implements best practices regarding spanning-tree, switchport mode, flow control etc on each port or is this command...
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Running vEOS on ESXi 5.5

What is vEOS? Arista Networks vEOS is a software only version of the EOS network operating system. vEOS is meant to be run in a virtual machine environment. vEOS is useful for feature testing and especially for development of scripts and extensions. vEOS can be run on many different virtualization platforms like Virtual Box, VMware Fusion or Workstation as well as ESXi. Arista Networks has previously published how to documentation for running vEOS on other virtualization platforms and this document will extend that documentation to ESXi. What is ESXi? VMware ESXi is a server virtualization platform that supports hypervisor clustering,...
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Configure vEOS VM

I have the vEOS configured under ESX5.1i and have two question 1) I created an OVF template in VMplayer (where all Ethernet1-4 interfaces were ok) and imported this in to my ESX5.1i host – On E3 / E4 I now get the message “Interfaces does not exist. The configuration will not take effect until the module is inserted”  How can the E3 / E4 interfaces be made available?  (I have all 5 x interfaces – 1xmgmt 4xethernet configured in the VM) 2) I can’t bring up a trunk port to support MLAG.  This worked in VMplayer but despite configuring the...
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VMware ESX 5 – Arista LACP guide

LACP Overview Link aggregation is a method for combining multiple Ethernet links into a single logical link with the goal of increasing both bandwidth and availability. By aggregating multiple links within a link aggregation group (LAG) customers improve performance by increasing bandwidth & ensure path redundancy in the event of a single link failure.  These benefits have made link aggregation a popular deployment standard in today’s Data Centers. Link Aggregation can be implemented in two ways: static and dynamic. With static LAG, each port-channel is created manually, with no automated mechanism to validate the port-channel configuration on the other switch....
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