Which of the following dvPort binding types have been removed in vSphere5?

Which of the following dvPort binding types have been removed in vSphere5?

A.
Ephemeral Binding

B.
Static Binding

C.
Dynamic Binding

Explanation:
From: http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-networking-guide.pdf

Select Static binding to assign a port to a virtual machine when the
virtual machine connects to the distributed port group. This option is not
available when the vSphere Client is connected directly to ESXi.

Select Dynamic binding to assign a port to a virtual machine the first
time the virtual machine powers on after it is connected to the distributed
port group. Dynamic binding is depricated in ESXi 5.0.

Select Ephemeral for no port binding. This option is not available when
the vSphere Client is connected directly to ESXi.

One Comment on “Which of the following dvPort binding types have been removed in vSphere5?

  1. TwojaStara04 says:

    “Dynamic binding is deprecated from ESXi 5.0” …

    Types of port binding

    These three different types of port binding determine when ports in a port group are assigned to virtual machines:

    Static Binding
    Dynamic Binding
    Ephemeral Binding

    Static binding

    When you connect a virtual machine to a port group configured with static binding, a port is immediately assigned and reserved for it, guaranteeing connectivity at all times. The port is disconnected only when the virtual machine is removed from the port group. You can connect a virtual machine to a static-binding port group only through vCenter Server.

    Note: Static binding is the default setting, recommended for general use.

    Dynamic binding

    In a port group configured with dynamic binding, a port is assigned to a virtual machine only when the virtual machine is powered on and its NIC is in a connected state. The port is disconnected when the virtual machine is powered off or the virtual machine’s NIC is disconnected. Virtual machines connected to a port group configured with dynamic binding must be powered on and off through vCenter.

    Dynamic binding can be used in environments where you have more virtual machines than available ports, but do not plan to have a greater number of virtual machines active than you have available ports. For example, if you have 300 virtual machines and 100 ports, but never have more than 90 virtual machines active at one time, dynamic binding would be appropriate for your port group.

    Note: Dynamic binding is deprecated from ESXi 5.0, but this option is still available in vSphere Client. It is strongly recommended to use Static Binding for better performance.

    Ephemeral binding

    In a port group configured with ephemeral binding, a port is created and assigned to a virtual machine by the host when the virtual machine is powered on and its NIC is in a connected state. The port is deleted when the virtual machine is powered off or the virtual machine’s NIC is disconnected.

    You can assign a virtual machine to a distributed port group with ephemeral port binding on ESX/ESXi and vCenter, giving you the flexibility to manage virtual machine connections through the host when vCenter is down. Although only ephemeral binding allows you to modify virtual machine network connections when vCenter is down, network traffic is unaffected by vCenter failure regardless of port binding type.

    Note: Ephemeral port groups should be used only for recovery purposes when you want to provision ports directly on host bypassing vCenter Server, not for any other case. This is true for several reasons >> http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1022312


Leave a Reply

Your email address will not be published. Required fields are marked *