Reconfiguring network switches as 802.1q VLAN trunks for VMware ESX implementation

1545 pts.
Tags:
Network equipment
Network switches
Networking
VLAN
VLAN management
VLAN trunking
VMware
VMware ESX
My data center network switches are configured as access ports, but we are soon implementing VMware ESX. Is there an easy way to reconfigure the switches to operate as 802.1q VLAN trunks to take advantage of VMware's VLAN management support?

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Yes it is fairly simple as long as your switches support it. 802.1Q is a most have with virtualization as it allows you to use multiple VLANs on a single physical switch port which reduces the number of physical NICs that you need in your hosts. Below are several documents that cover how to do this.

<a href=”http://www.vmware.com/pdf/esx3_vlan_wp.pdf “>VMware ESX Server 3 802.1Q VLAN Solutions</a>
<a href=”http://searchvmware.techtarget.com/tip/0,289483,sid179_gci1280449,00.html”>Configuring VLAN’s in VMware Infrastructure 3</a>
<a href=”http://searchvmware.techtarget.com/tip/0,289483,sid179_gci1283036,00.html”>VLAN Configuration on VI3: VST, EST VGT Tagging Tips</a>
<a href=”http://kb.vmware.com/kb/1003806″>VLAN Configuration on Virtual Switch, Physical Switch, and Virtual Machines – ESX 3.X</a>
<a href=”http://kb.vmware.com/kb/1004127″>Sample Configuration – ESX connecting to physical switch via VLAN access mode. External Switch VLAN Tagging (EST Mode)</a>
<a href=”http://kb.vmware.com/kb/1004074″>Sample configuration of virtual switch VLAN tagging (VST Mode) and ESX Server</a>
<a href=”http://kb.vmware.com/kb/1004252″>Sample configuration of virtual guest VLAN tagging (VGT mode)
</a>

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