TEP tunnels between NSX Edge and ESXi host remain down in a collapsed cluster
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TEP tunnels between NSX Edge and ESXi host remain down in a collapsed cluster

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Article ID: 312976

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Updated On:

Products

VMware NSX Networking VMware NSX

Issue/Introduction

Informational:

1) Edges that are part of a collapsed cluster should exhibit below information on net-dvs -l:

                        propType = POLICY

                com.vmware.common.port.block = false , propType = POLICY

                com.vmware.port.extraConfig.vdl2.nestedTNConfig = version=1;vlan=141,label=62465;vlan=141,label=3073 , propType = POLICY

                com.vmware.common.port.volatile.vlan = VLAN 0

                        ranges = 131 132 141 161-180

2) If the value "com.vmware.port.extraConfig.vdl2.nestedTNConfig" is not visible on "net-dvs -l" output for the edge ports, the nestedTNConfig is not pushed and tunnels will be down.


Symptoms:

TEP tunnels between NSX Edge and ESXi host remain down in a collapsed cluster.

 

Environment

VMware NSX-T Data Center

VMware NSX

Cause

The cause of "com.vmware.port.extraConfig.vdl2.nestedTNConfig" not being populated on a collapsed cluster is due to the value  "lsp_inter_vtep_enable" being set to false:

GET https://<<nsx-mgr-ip>>/api/v1/edge-tuning-configuration

{

  "lsp_inter_vtep_enable" : false, ----------------> its false here

  "resource_type" : "EdgeTuningParameters",

  "id" : "8bbc3064-7165-46ff-b086-2d7fdc4909b0",

  "display_name" : "8bbc3064-7165-46ff-b086-2d7fdc4909b0",

  "_create_time" : 1663735327326,

  "_create_user" : "system",

  "_last_modified_time" : 1670735315890,

  "_last_modified_user" : "admin",

  "_system_owned" : false,

  "_protection" : "NOT_PROTECTED",

  "_revision" : 1

 

Resolution

Need to set the value "lsp_inter_vtep_enable" to true using API

 


Workaround:

PUT https://<<nsx-mgr-ip>>/api/v1/edge-tuning-configuration

 

{

    "lsp_inter_vtep_enable": true,

    "resource_type": "EdgeTuningParameters",

        "_revision": 1

}


Additional Information

Impact/Risks:

Tunnels will remain down between Edges and ESXi hosts until this is corrected.