Module 4 cannot be inserted because it is not backward compatible

[haiyang xu]

Hello guys：

     there some wrong with the VSM and VEM, the log reported is :

Module 4 cannot be inserted because it is not backward compatible

    Nexus1000v vem 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(4)
  system:    version 4.2(1)SV1(4)
  kickstart image file is: bootflash:/nexus-1000v-kickstart-mz.4.2.1.SV1.4.bin
  kickstart compile time:  1/27/2011 14:00:00 [01/27/2011 22:26:45]
  system image file is:    bootflash:/nexus-1000v-mz.4.2.1.SV1.4.bin
  system compile time:     1/27/2011 14:00:00 [01/28/2011 00:56:08]

Hardware
  cisco Nexus 1000V Chassis ("Virtual Supervisor Module")
  Intel(R) Xeon(R) CPU         with 2075740 kB of memory.
  Processor Board ID T5056B06885

  Device name: N1000V
  bootflash:    1557496 kB

Kernel uptime is 0 day(s), 4 hour(s), 48 minute(s), 22 second(s)

VSM version :

Kernel Memory:   50265356
Port link-up delay: 5s
Global UUFB: DISABLED
Heartbeat Set: False
PC LB Algo: source-mac
Datapath portset event in progress : no
~ # vem status -v
Package vssnet-esxmn-ga-release
Version 4.2.1.1.4.1.0-3.0.4
Build 4
Date Wed Jul 27 20:31:30 PDT 2011

Number of PassThru NICs are 0
VEM modules are loaded

Switch Name      Num Ports   Used Ports  Configured Ports  MTU     Uplinks
vSwitch0         128         3           128               1500    vmnic2
DVS Name         Num Ports   Used Ports  Configured Ports  MTU     Uplinks
N1000V           256         12          256               1500    vmnic3

Number of PassThru NICs are 0
VEM Agent (vemdpa) is running

Thank you to help .

[lwatta]

Looking at the VEM version its for ESXi 5.0. So your ESX host is 5.0?

If thats true then you need to upgrade the VSM to 1.4a. You are at 1.4 and 1.4a was the first version to support ESXi 5.0.

You can always consult the compatibility guide to see what is supported at http://www.cisco.com/en/US/docs/switches/datacenter/nexus1000/sw/4_2_1_s_v_1_4_a/compatibility/information/n1000v_compatibility.html

I would upgrade to 1.4b since it's the latest 1.4 stable build.

louis

[haiyang xu]

HI Louis

Thank you very much！

ESXI version is 5.0.0 build 504890

I looked The Nexus 1000v Compatibility list ,can't know the ESXI version means.

I would upgrade to 1.4b and try .

Thanks again.

[haiyang xu]

Louis

There is a problem in addition.

How can I removed the old VEM, because I cant  again vem installation.

[lwatta]

Make the sure the host is removed from the DVS in VMware vCenter. So right click on the host under networking in vCenter and "Remove from Distributed Switch".

Next on the ESXi host itself run "vem-remove -s -r". It will fail but it should tell you what command to run to remove the VEM module.

Then add the host back to the Nexus 1000V in vcenter and it should download the latest vem module for it that is compatibile with the VSM.

louis

[haiyang xu]

Hi Louis,

I had update the VSM version, But always report the error information,I found the compatible list, and had an question.

What's the  "ESXi 5.0.0 Update01 " means?  Whether if let me to installed the "update-from-esxi5.0-5.0_update01" for ESXI host ?

     I was the timezone +8:00  thanks a lot.

Henry