Spencer, Thanks for the reply.  What I discovered was that the /op/devices/bulkImport requires a MINIMUM of three entries being passed to it to make an update to the UDF.  IP address, SNMP version and SNMP community.  The API documentation only indicates the IP address is mandatory.  I found this not to be the case.  All three are required to make a successful update to the UDF. Posting this here so other community members can see how I resolved the issue. Thanks. ... View more

Community, Hunting the internet further I found the issue.  I needed to find a way to get more information from Powershell errors. It told me the ContentType was incorrect.  It was expecting the -ContentType 'text/xml' Once I set this, the Invoke-RestMethod worked with PUT and the PI server returned a job number as expected. However, the PI server indicated the job failed.  I can only capture a portion of the error message.  It is griping about the snmp_version.  However, I am not trying to change the snmp_version, just a UDF. FAILED_Add Bulk Import Job Failed, Incorrect Input file. Line 2: Invalid value : '' for snmp_version Possible Values are : 1 , 2c , 3.-INVENTORY I have no idea why it is throwing this error message.  Can the community help in properly formatting the XML input? Thanks. ... View more

Community, After browsing more I found the solution in another community post from 2010: https://supportforums.cisco.com/discussion/10876511/cisco881w-zone-based-firewall-dhcp Bob ... View more

Simon, No I have not reached any resolution.  I was thinking about working on this later this week.  If I get this figured out I will post what I found. ... View more

Louis, Not yet, but I do have access to the TAC and Cisco Advanced services, if I need to engage their help.  This just kind of got out prioritized by other issues. Thanks for checking in. Bob ... View more

Louis, By most recent version of 1.4a, do you mean the VSM version, if so it is 4.2.1.SV1.4a.  I upgraded them before trying the ESXi upgrade. I am upgrading from ESXi 4.1.  The build number is 4.1.0, 433742 The Nexus 1000V was installed when the ESXi servers were at version 4.1 Here is the show version and show module from the VSM: n0-ntpm-n1kv# sh version Cisco Nexus Operating System (NX-OS) Software TAC support: http://www.cisco.com/tac Copyright (c) 2002-2011, Cisco Systems, Inc. All rights reserved. The copyrights to certain works contained herein are owned by other third parties and are used and distributed under license. Some parts of this software are covered under the GNU Public License. A copy of the license is available at http://www.gnu.org/licenses/gpl.html . Software   loader:    version unavailable [last: loader version not available]   kickstart: version 4.2(1)SV1(4a)   system:    version 4.2(1)SV1(4a)   kickstart image file is: bootflash:/nexus-1000v-kickstart-mz.4.2.1.SV1.4a.bin   kickstart compile time:  7/27/2011 3:00:00 [07/27/2011 10:57:37]   system image file is:    bootflash:/nexus-1000v-mz.4.2.1.SV1.4a.bin   system compile time:     7/27/2011 3:00:00 [07/27/2011 15:29:14] Hardware   cisco Nexus 1000V Chassis ("Virtual Supervisor Module")   Intel(R) Xeon(R) CPU         with 2075740 kB of memory.   Processor Board ID T5056BA1231   Device name: n0-ntpm-n1kv   bootflash:    2332296 kB Kernel uptime is 5 day(s), 0 hour(s), 58 minute(s), 32 second(s) plugin   Core Plugin, Ethernet Plugin, Virtualization Plugin n0-ntpm-n1kv# sh module Mod  Ports  Module-Type                       Model               Status ---  -----  --------------------------------  ------------------  ------------ 1    0      Virtual Supervisor Module         Nexus1000V          active * 2    0      Virtual Supervisor Module         Nexus1000V          ha-standby Mod  Sw                Hw ---  ----------------  ------------------------------------------------ 1    4.2(1)SV1(4a)     0.0 2    4.2(1)SV1(4a)     0.0 Mod  MAC-Address(es)                         Serial-Num ---  --------------------------------------  ---------- 1    00-19-07-6c-5a-a8 to 00-19-07-6c-62-a8  NA 2    00-19-07-6c-5a-a8 to 00-19-07-6c-62-a8  NA Mod  Server-IP        Server-UUID                           Server-Name ---  ---------------  ------------------------------------  -------------------- 1    130.42.0.55      NA                                    NA 2    130.42.0.55      NA                                    NA * this terminal session n0-ntpm-n1kv# ... View more

Hello, I tried to perform this procedure and followed it step-by-step and everything worked.  However, when I went to deploy the bundled ESXi image I got the following error message: Any ideas what the issue is?  The VSM is at version 4.2.1.SV1.4a.  Thanks. ... View more