Those that lean more towards a virtualization skillset tend to opt for the VMware Distributed Switch. This allows for a centralized point of management and control. The v has limitations but they are not very scary. This document has been divided into 3 parts. By the way – it is not a friend of mine.
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Configure Virtual Machine-FEX with Cisco VIC and Nexus 5K – Part 1
Based on the pre-standard IEEE Any FEX technology means that traffic MUST travel back north to the fabric device before being switched, so even two virtual machines on the same host must hairpin traffic up there in order to talk. As you saw in the video, a big reasons to run VM-FEX is indeed the centralized management component – it, like the v, creates a VDS in vSphere, and allows you to administer the available network port groups from a centralized point.
A supported version of ESXI 4. This allows for a centralized point of management and control. This document is indented to customers, partners, solution architects and virtualization experts who are evaluating or planning virtualization strategy for their datacenter. The v has limitations but they are not very scary.
Cisco VM-FEX and the Nexus v · Keeping It Classless
Both solutions utilize a Cisco-created software module ciscco distributed forwarding functionality VEM. ESXi and vCenter configuration Audience and Scope This document is indented to customers, partners, solution architects and virtualization disco who are evaluating or planning virtualization strategy for their datacenter.
Reboot the server The configuration settings on the Cisco Rack server are complete. My findings on this are best saved for another day.
Again – it depends on your applications. Virtual machines connected to cizco Nexus v have and will be able to vMotion, as the v is merely a replacement for the already software-based virtual switch per host. Each host has one or more virtual switches, and each host maintains the control and cisvo functions locally inside the software switch of the hypervisor.
This dedicated virtual interface can be managed, monitored, and spanned in the same way as a physical interface. The other purpose is to push or extend – see? However this will work if you are running 60 days trail. Strictly speaking, and especially for the purposes of this post, the VDS is merely one type of distributed switch. The Nexus v VSM is run either as a virtual machine inside the environment, or inside a separate piece of gear called the Nexus appliance.
Local switching in the hypervisor is eliminated, with all switching being performed by the physical switch. The Nexus v works by communicating directly with the virtual line cards inside each host using a Control VLAN, as well as direct vm-fexx with vCenter, for things like syncing configuration of port groups, etc. CoS tagging for virtual port groups.
If I were to argue against the deployment of VM-FEX at this point, it would be for purely architectural and operational reasons, and those always depend on many factors. Just like all FEX technology from Cisco, this is loosely based on For instance, the Cisco v is a software hypervisor switch, and east-west traffic has the potential to stay local to the host. Does this sound dangerous? Please refer Rack server product documentation for list of supported ESXi versions.
Check out this good overview by Ivan, the trick used here is pretty cool, and it solved a pretty big problem with VM-FEX. The general idea is that the control and configuration functions of a vSwitch are abstracted, leaving only the software needed to actually move packets around data plane. However, the control plane is found in a different location than with the Nexus v, and the reasons why you would use VM-FEX are quite different, in my opinion.
This document has been divided into 3 parts. Please refer to Cisco. By the way – it is not a friend of mine.
Those that lean more towards a virtualization skillset tend to opt for the VMware Distributed Switch. Configuring Nexus Switch.
This document is not indented for best practices. The other big thing to consider here is administration.