The ESXi Server network configuration

Hello

This is a pretty silly question for most of you, but I don't have any experience on ESXi.

If an EXSi server has 4 installed physical network cards, this means that it can only subnets different hosts 4? they are more than 4 subnets to be hosted, one or more servers need to be purchased ESXi?

Thank you

Hey Roywang,

You can have as many subnets you want as long as they are all set on your physics of switching.  For example:

VLAN 100 - 24 10.1.1.X

VLAN 200 - 10.1.2.X 24

VLAN 300 - 10.1.3.X 24

VLAN 400 - 10.1.4.X 24

VLAN 500 - 10.1.5.X 24

VLAN 600 - 10.1.6.X 24

VLAN 700 - 10.1.7.X 24

Now, with these VIRTUAL networks, you can cut your vSwitch like this upward:

vSwitch0

PortGroup - management - VLAN100 - 10.1.1.5/24 active VMNIC0, VMNIC1 ensures

VMotion PortGroup - - VLAN 200 - 10.1.2.5/24 VMNIC1 active, VMNIC0 ensures

PortGroup - VM Network - VLAN 300 - VMNIC0, VMNIC1 Active 10.1.3.5/24, active

PortGroup - VM network WebServer - VLAn 400 - VMNIC0, VMNIC1 Active 10.1.4.5/24, Active

PortGroup - VM Network Backup - VLAN 500 - 10.1.5.5/24 VMNIC0, Active, Active VMNIC1

vSwitch1

Port - iSCSI1 - unused VMNIC2 VMNIC3 Active 10.1.6.5/24 Group

Port - iSCSI2 - 10.1.7.5/24 VMNIC3 VMNIC2 Active unused group

What is happening is essentially in your vSwitch each port group gets a tag VLAN, then on your physical switches where the nics connect tag, what is needed, and the switch will forward the packets accordingly.  For example, the ports that vmnic0, vmnic1 plug on the physical switch you would tag for VLAN 100,200,300,400,500 like all these networks can land on each network card.  You will also need these trunks in trunk for this mode.

If you have any questions please let us know.

Tags: VMware

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