Virtual Distributed Switch; Prerequisites; Guidelines - Lenovo RackSwitch G8264 Application Manual

Virtual Distributed Switch

Prerequisites

Guidelines

© Copyright Lenovo 2016
A virtual Distributed Switch (vDS ) allows the hypervisor's NIC to be attached to
the vDS instead of its own virtual switch. The vDS connects to the vCenter and
spans across multiple hypervisors in a datacenter. The administrator can manage
virtual machine networking for the entire data center from a single interface. The
vDS enables centralized provisioning and administration of virtual machine
networking in the data center using the VMware vCenter server.
When a member is added to a distributed VM group, a distributed port group is
created on the vDS. The member is then added to the distributed port group.
Distributed port groups on a vDS are available to all hypervisors that are
connected to the vDS. Members of a single distributed port group can
communicate with each other.
Note: vDS works with ESX 4.0 or higher versions.
To add a vDS, use the command:
RS G8264# virt vmware dvswitch add <datacenter name> <dvSwitch name>
[<dvSwitch‐version>]
Before adding a vDS on the G8264, ensure the following:
VMware vCenter is fully installed and configured and includes a "bladevm"

administration account and a valid SSL certificate.
 A virtual distributed switch instance has been created on the vCenter. The vDS
version must be higher or the same as the hypervisor version on the hosts.
 At least two hypervisors are configured.
Before migrating VMs to a vDS, consider the following:
At any one time, a VM NIC can be associated with only one virtual switch: to the

hypervisor's virtual switch, or to the vDS.
Management connection to the server must be ensured during the migration.

The connection is via the Service Console or the Kernel/Management Interface.
 The vDS configuration and migration can be viewed in vCenter at the following
locations:
vDS: Home> Inventory > Networking

vDS Hosts: Home > Inventory > Networking > vDS > Hosts

Note: These changes will not be displayed in the running configuration on the
G8264.
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Chapter 20: VMready