This chapter describes how to identify and resolve problems related to the Cisco Nexus 1000V system.
Information About the System
The Microsoft System Center Virtual Machine Manager (SCVMM) is designed for the management of a large number of virtual servers that are based on the Microsoft Hyper-V model. The Microsoft SCVMM is a management application that is used to manage the windows server hosts. The Cisco Nexus 1000V is a virtual switch that provides switching for Virtual Machines (VMs) that are deployed on the servers running Microsoft Windows 2012.
VEM Troubleshooting Commands
You can use the commands in this section to troubleshoot problems related to the Virtual Ethernet Module (VEM). Enter these commands in a PowerShell window.
Example 20-1 vemcmd show version Command
PS C:\Program Files (x86)\Cisco\Nexus1000V>.\VemCmd.exe show version
VEM Version: 5.2.1.SM18.104.22.1688-3
VSM Version: 5.2(1)SM1(5.1) [build 5.2(1)SM1(5.0.278)] [gdb]
System Version: Windows Server 2012 - Datacenter (6.2.9200, 6.30
Example 20-2 vemlog show last Command
PS C:\Program Files (x86)\cisco\Nexus1000V>.\vemlog show last 5
Timestamp Entry CPU Mod Lv Message
Mar 17 14:47:30.124446 28768 0 99 4 Warning Could not get LACP Port for LTL 20
Mar 17 14:48:00.123500 28769 0 99 4 Warning Could not get LACP Port for LTL 22
Mar 17 14:48:00.123500 28770 0 99 4 Warning Could not get LACP Port for LTL 21
Mar 17 14:48:00.123500 28771 0 99 4 Warning Could not get LACP Port for LTL 20
Mar 17 14:48:00.248291 28772 6 0 0 Suspending log
Example 20-3 vemlog show info Command
PS C:\Program Files (x86)\cisco\Nexus1000V>.\vemlog show info
Stop After Entry: Not Specified
Example 20-4 vemcmd help Command
PS C:\Program Files (x86)\cisco\Nexus1000V>.\vemcmd help
show version Show the VEM and VSM versions
show card Show the card's global info
show data Show switch global data
show vsm uptime Show the VSM's uptime
Example 20-5 vem-support.ps1 Command
PS C:\Program Files (x86)\cisco\Nexus1000V\Support>.\vem-support.ps1
Directory: C:\Program Files (x86)\Cisco\Nexus1000V\Support
Mode LastWriteTime Length Name
---- ------------- ------ ----
d---- 3/17/2013 2:51 PM WIN-35-cisco-vem-2013-0317-1451
VEM Log Commands
Use the following commands to control the vemlog:
- vemlog stop —Stops the log.
- vemlog clear —Clears the log.
- vemlog start number-of-entries —Starts the log and stops it after the specified number of entries.
- vemlog stop number-of-entries —Stops the log after the next specified number of entries.
- vemlog resume —Starts the log, but does not clear the stop value.