5.1

John Admin Associates Cluster with Distributed Switches
John Admin must map each cluster that is to participate in a virtualized network to a vDS. When he maps a
cluster to a switch, each host in that cluster is enabled for VXLAN virtual wires.
Prerequisites
1 John Admin gets a segment ID pool (4097 - 5010) from ACME's vShield manager admin and a multi cast
address range (224.0.0.0 to 239.255.255.255 ) from ACME's network administrator.
2 John Admin sets the Managed IP address for the vCenter Server.
a Select Administration > vCenter Server Settings > Runtime Settings.
b In vCenter Server Managed IP, type 10.115.198.165.
c Click OK.
3 John Admin ensures that a DHCP server is available on VXLAN transport VLANs.
4 John Admin verifies that both dvSwitch1 and dvSwitch2 are the same version and from the same vendor.
Procedure
1 In the vSphere Client, select Inventory > Hosts & Clusters.
2 Select ACME_Datacenter from the inventory panel.
3 Click the Network Virtualization tab.
4 Ensure that you are in the Preparation tab.
5 In Connectivity, click Edit.
6 In the Prepare Infrastructure for VXLAN networking dialog box, select Cluster1 to participate in the
VXLAN virtual wire.
7 Type 10 for dvSwitch1 to use as the ACME VXLAN transport VLAN.
8 Click Next.
9 In Specify Transport Attributes, leave 1600 as the Maximum Transmission Units (MTU) for dvSwitch1.
MTU is the maximum amount of data that can be transmitted in one packet before it is divided into smaller
packets. John Admin knows that VXLAN virtual wire traffic frames are slightly larger in size because of
the encapsulation, so the MTU for each switch must be set to 1550 or higher.
10 Repeat steps 5 through step 7 and select Cluster2 to participate in the VXLAN virtual wire.
11 In Specify Transport Attributes, type 20 for dvSwitch2.
12 Leave 1600 as the Maximum Transmission Units (MTU) for dvSwitch2.
13 Click Finish.
After John admin maps Cluster1 and Cluster2 to the appropriate switch, the hosts on those clusters are prepared
for VXLAN virtual wires:
1 A VXLAN kernel module and vmknic is added to each host in Cluster1 and Cluster2.
2 A special dvPortGroup is created on the vDS associated with the VXLAN virtual wire and the vmknic is
connected to it.
vShield Administration Guide
58 VMware, Inc.