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Dell EMC VxRail Multirack Deployment Guide
4
Switch configuration values and prerequisites
This section covers prerequisites to ensure a successful multirack VxRail cluster deployment.
4.1
Pre-planning VLANs, IP address, and switch values
Before configuring the switches or deploying VxRail, VLANs, IP address, and switch specific settings should
be planned.
4.1.1
VLANs and IP addresses
VLANs and IP addresses used for VxRail node traffic must be planned before switch configuration, and
VxRail deployment can begin. Table 1 shows the five VxRail VLANs and their purpose.
VLANs used for VxRail nodes
VLAN
Purpose
External management VxRail Manager and ESXi management traffic
Internal management
Node discovery
vMotion
Virtual machine migration
vSAN
Distributed storage traffic
Guest VM networks
One or more VLANs for VM data traffic
Table 2 shows six VLANs, VLAN IDs, and IP network addresses planned for this deployment. Two guest VM
networks are defined as VLAN 10 and 20.
VLANs and IP addresses
VLAN ID Description
Network (CIDR)
Gateway
VLAN Traffic
1631
External management 172.16.31.0/24
172.16.31.253
Untagged
3939
Internal management
n/a
n/a
Tagged
1632
vMotion
172.16.32.0/24
172.16.32.253
Tagged
1633
vSAN
172.16.33.0/24
172.16.33.253
Tagged
10
Guest VM Network A
192.168.10.0/24
192.168.10.253
Tagged
20
Guest VM Network B
192.168.20.0/24
192.168.20.253
Tagged
Note:
Gateway addresses are provided for each network for future expansion of the environment, including
stretched vSAN and vMotion of VMs to other independent clusters. For information about routing L2 VXLANs,
see
Appendix A
.