Error: "PXE-E99" May be seen while PXE booting in certain sites after upgrading Deployment Solution

Products

• Deployment Solution

Issue/Introduction

After upgrading ITMS and Deployment Solution to 8.7.1, the error PXE-E99 may be noticed when attempting to PXE boot to NBS servers in some environments

Environment

Deployment Solution 8.7.1

Upgraded NBS Site servers using SbsMtftp.exe version 6.9.12514.0

Cause

In some customer environments, certain network devices may send broadcast TFTP messages which are intercepted by the PXE server. The SbsMtftp.exe version 6.9.12514.0 which is included in DS 8.7.1 may not gracefully handle or interpret the TFTP messages that are unrelated to PXE. In some environments, this traffic can cause the SbsMtftp.exe service to stop listening to valid incoming PXE requests. This can cause PXE-E99 errors when attempting to PXE/iPXE boot an endpoint.

Resolution

A drop-in fix is available for 8.7.1 which gracefully handles invalid traffic. The permant fix is included in the IMTS 8.7.2 release so upgrading would be suggested.

NOTE: Please contact Broadcom Technical Support if using ITMS 8.7.1 and the drop-in fix is required.