vSphere Standard Switch (vSS)

The vSphere Standard Switch (vSS) is used to provide network connectivity for hosts, virtual machines, and to handle VMKernel traffic. The standard switch works only with one ESXi host. vSphere standard switches bridge traffic internally between virtual machines in a VLAN.

The standard switch does not require Enterprise plus licensing for usage. This is one of the real advantages for standard switch users. A standard switch is created at the host level, i.e., we can create and manage a vSphere standard switch independently on an ESXi host. Inbound traffic shaping is not available as a part of the standard switch. Networking vMotion is not available on the standard switch.

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vSphere Distributed Switch (vDS)

A vSphere Distributed Switch (vDS) allows a single virtual switch to connect multiple ESXi hosts. The vSphere Distributed Switch in a data center handles the networking configuration of multiple hosts at a time from a central place.

Distributed switches allow different hosts to use the switch as they exist in the same host. It provides centralized management and monitoring of the network configuration of all the ESXi hosts that are associated with the vDS. The vSphere Distributed Switch (vDS) gives priority to traffic and allows other network streams to utilize the available bandwidth.

The vSphere Distributed Switch includes rollback and recovery for patching and updating network configuration and templates to enable backup and restore for virtual networking configuration. Inbound traffic shaping is possible to apply in distributed switches only. Networking vMotion is used in distributed switches only.

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Networking vMotion – Networking vMotion tracks the virtual machine’s networking state. As a VM moves from host to host on a vNetwork Distributed Switch. It is possible to apply it only in distributed switching.

Features similar in both standard switch and distributed switch

Some of the features are similar to apply both standard and distributed switches. They are listed below.

  • Forward L2 Frames
  • Segment traffic into LANs
  • Use and understand 802.1q VLAN encapsulation
  • Having more than one Uplink (NIC Teaming)
  • Traffic Shaping for Outbound traffic

Configuration for Standard switch and Distributed switch in vSphere Client 6.5

Let us see the configuration for the Standard switch and Distributed switch in vSphere client 6.5.

  • Navigate to ESXi host in web client
  • Choose a connection type for which you want to use new standard switch
  • Option Description
    VMKernel Network Adapter Create a new VMkernel adapter to handle host management traffic, vMotion, network storage, fault tolerance, or Virtual SAN traffic.
    Physical Network Adapter Add physical network adapters to an existing or a new standard switch
    Virtual Machine Port Group for a Standard Switch Create a new port group for virtual machine networking

    Create a new Standard Switch (vSS) using Physical Network Adapter

    • Right-click Networking and choose the option “Add Standard vSwitch” to create a standard switch
    • Assign a name to the standard vSwitch and click Add

    Add-Standard-virtual-switch

    • A new switch is created under Virtual Switches

    Virtual-Machine-Networking

    Configuration for Distributed Switch

    • In the vCenter web client, navigate to a data center

    Datacenter

    • Right-click datacenter->Select Distributed Switch

    VM Datacenter

    • Specify a name and location to create a distributed switch (vDS) and click Next

    Name-and-location

    • Specify a distributed switch version that is compatible with ESXi version 6.5 and click Next

    Select-version

    • Assign the uplink port number, resource allocation, and default port group and click Next

    Edit-setting

    • Review the created, distributed switch settings and click Finish

    Now you could see a distributed switch (vDS) created in the data center.

    Conclusion

    The Standard Switch (vSS) and Distributed Switch (vDS) enable advanced virtual network topology between VMs and hosts.

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