Skip to main content

Troubleshooting ESXi VLAN Configurations using Command Line Tools

There are a few ways to troubleshoot network/VLAN configuration from a command line, using tools such as ESXCLI and vicfg/esxcfg either locally on the ESXi host or remotely using vCLI or the vMA. Here, I’ll aim to give examples using esxcfg commands ran from a vMA, and ESXCLI commands executed locally on the ESXi host.

Listing Port Group Settings

~ # esxcli network vswitch standard portgroup list
Name                Virtual Switch  Active Clients  VLAN ID
------------------  --------------  --------------  -------
Management Network  vSwitch0                     1        0
VM Network          vSwitch3                     0        0
vMotion             vSwitch0                     1        0


vi-admin@vma:~[192.168.88.134]> esxcfg-vswitch -l
Switch Name     Num Ports       Used Ports      Configured Ports    MTU     Uplinks
vSwitch0        128             5               128                 1500    vmnic1,vmnic0

   PortGroup Name                VLAN ID   Used Ports      Uplinks
   vMotion                       0         1               vmnic1
   Management Network            0         1               vmnic0

Switch Name     Num Ports       Used Ports      Configured Ports    MTU     Uplinks
vSwitch3        128             3               128                 1500    vmnic7,vmnic6

   PortGroup Name                VLAN ID   Used Ports      Uplinks
   VM Network                    0         0               vmnic7,vmnic6

DVS Name                 Num Ports   Used Ports  Configured Ports  Uplinks
DSwitch1                 256         5           256               vmnic4,vmnic5,vmnic8,vmnic9

   DVPort ID           In Use      Client
   8                   1           vmnic4
   9                   1           vmnic9
   10                  1           vmnic8
   11                  1           vmnic5
   0                   0
   1                   0

Configuring VLAN Tags

~ # esxcli network vswitch standard portgroup set -p vMotion --vlan-id 10
~ # esxcli network vswitch standard portgroup list
Name                Virtual Switch  Active Clients  VLAN ID
------------------  --------------  --------------  -------
Management Network  vSwitch0                     1        0
VM Network          vSwitch3                     0        0
vMotion             vSwitch0                     1       10
vi-admin@vma:~[192.168.88.134]> esxcfg-vswitch vSwitch0 -p vMotion -v 0

Adding and Removing Port Groups

esxcli network vswitch standard portgroup add -p testpg -v vSwitch0
~ # esxcli network vswitch standard portgroup set -p testpg --vlan-id 1000
~ # esxcli network vswitch standard portgroup list
Name                Virtual Switch  Active Clients  VLAN ID
------------------  --------------  --------------  -------
Management Network  vSwitch0                     1        0
VM Network          vSwitch3                     0        0
testpg              vSwitch0                     0     1000
vMotion             vSwitch0                     1        0
esxcfg-vswitch --add-pg testpg vSwitch1
To delete a port group:
~ # esxcli network vswitch standard portgroup remove -p testpg -v vSwitch0
~ # esxcli network vswitch standard portgroup list
Name                Virtual Switch  Active Clients  VLAN ID
------------------  --------------  --------------  -------
Management Network  vSwitch0                     1        0
VM Network          vSwitch3                     0        0
vMotion             vSwitch0                     1        0
esxcfg-vswitch --del-pg testpg vSwitch1

Useful Links and Resources

vSphere Command Line Guide

Comments

Post a Comment

Popular posts from this blog

  Issue with Aria Automation Custom form Multi Value Picker and Data Grid https://knowledge.broadcom.com/external/article?articleNumber=345960 Products VMware Aria Suite Issue/Introduction Symptoms: Getting  error " Expected Type String but was Object ", w hen trying to use Complex Types in MultiValue Picker on the Aria for Automation Custom Form. Environment VMware vRealize Automation 8.x Cause This issue has been identified where the problem appears when a single column Multi Value Picker or Data Grid is used. Resolution This is a known issue. There is a workaround.  Workaround: As a workaround, try adding one empty column in the Multivalue picker without filling the options. So we can add one more column without filling the value which will be hidden(there is a button in the designer page that will hide the column). This way the end user will receive the same view.  
Post a Comment
Read more

57 Tips Every Admin Should Know

Active Directory 1. To quickly list all the groups in your domain, with members, run this command: dsquery group -limit 0 | dsget group -members –expand 2. To find all users whose accounts are set to have a non-expiring password, run this command: dsquery * domainroot -filter “(&(objectcategory=person)(objectclass=user)(lockoutTime=*))” -limit 0 3. To list all the FSMO role holders in your forest, run this command: netdom query fsmo 4. To refresh group policy settings, run this command: gpupdate 5. To check Active Directory replication on a domain controller, run this command: repadmin /replsummary 6. To force replication from a domain controller without having to go through to Active Directory Sites and Services, run this command: repadmin /syncall 7. To see what server authenticated you (or if you logged on with cached credentials) you can run either of these commands: set l echo %logonserver% 8. To see what account you are logged on as, run this command: ...
Post a Comment
Read more
  The Guardrails of Automation VMware Cloud Foundation (VCF) 9.0 has redefined private cloud automation. With full-stack automation powered by Ansible and orchestrated through vRealize Orchestrator (vRO), and version-controlled deployments driven by GitOps and CI/CD pipelines, teams can build infrastructure faster than ever. But automation without guardrails is a recipe for risk Enter RBAC and policy enforcement. This third and final installment in our automation series focuses on how to secure and govern multi-tenant environments in VCF 9.0 with role-based access control (RBAC) and layered identity management. VCF’s IAM Foundation VCF 9.x integrates tightly with enterprise identity providers, enabling organizations to define and assign roles using existing Active Directory (AD) groups. With its persona-based access model, administrators can enforce strict boundaries across compute, storage, and networking resources: Personas : Global Admin, Tenant Admin, Contributor, Viewer Projec...
Post a Comment
Read more