Knowledge Base

The VMware Knowledge Base provides support solutions, error messages and troubleshooting guides
Search the VMware Knowledge Base (KB)   View by Article ID

VLAN Tags Incorrectly Sized (1655)


I'm using a network adapter to process VLAN tags in ESX Server 2.1.2. My virtual machines that use a VLAN connection aren't receiving network traffic, but my other virtual machines work fine. Why?


The initial release of ESX Server 2.1.2 did not resize VLAN packets to 802.1Q-specified length after processing them. Certain network adapters may discard the truncated packets.

VMware ESX Server 2.1.2 Upgrade Patch 3 includes a system update that adds extra padding to small VLAN packets to compensate for some network adapters, which fail to pad sufficiently.



Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.


  • 0 Ratings

Did this article help you?
This article resolved my issue.
This article did not resolve my issue.
This article helped but additional information was required to resolve my issue.
What can we do to improve this information? (4000 or fewer characters)
  • 0 Ratings