Configuring MPLS Segment Routing OAM

MPLS segment routing (SR) has been deployed on the Cisco Nexus 9000 Series switches. As MPLS segment routing (SR) is deployed, a few diagnostic tools are required to help resolve the misconfigurations or failures in the segment routing network.Segment Routing Operations, Adminstration, and Maintenance (OAM) helps service providers monitor label-switched paths (LSPs) and quickly isolate forwarding problems to assist with fault detection and troubleshooting in the network.

For more information, see the Cisco Nexus 9000 Series NX-OS Label Switching Configuration Guide:

https://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-installation-and-configuration-guides-list.html/

Enabling MPLS OAM

Enabling MPLS OAM

POST http://<IP_Address>/api/mo/sys/fm.json

{
"fmEntity": {
  "children": [
    {
      "fmMplsOam": {
        "attributes": {
          "adminSt": "enabled"
}}}]}}

{
    imdata:[]
}

<System>
  <fm-items>
    <mplsoam-items>
      <adminSt>enabled</adminSt>
    </mplsoam-items>
  </fm-items>
</System>

CLI Commands

The CLI command below is the equivalent to the payload example displayed in the pane on the right.

feature mpls oam

Note: The property information for this example was added in Release 9.3(3).

Verifying a DME Configuration
The following table contains the distinguished name (DN) for each managed object (MO) in the DME payload. Issue a GET request using the DN to verify the configuration was posted or to get information about the configured properties of a particular object.

MO	DN
fmEntity	sys/fm
fmMplsOam	sys/fm/mplsoam

fmMplsOam Properties

The following table contains information about the fmMplsOam properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property Name	Data Type	Description	Values
adminSt	fm:AdminState (scalar:Enum8)	Admin status	SELECTION: 1 - enabled 2 - disabled DEFAULT: disabled

Related Documentation

For other CLI options, see the Cisco Nexus 9000 Series NX-OS Command Reference:

http://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-command-reference-list.html

See the NX-API DME Model Reference for detailed information about classes and attributes described in the payload:

https://developer.cisco.com/site/nx-os/docs/nexus-model-reference/

For information about using the payloads, see the Cisco Nexus 9000 Series NX-OS Programmability Guide:

https://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-programming-reference-guides-list.html

Disabling MPLS OAM

Disabling MPLS OAM

POST http://<IP_Address>/api/mo/sys/fm.json

{
"fmEntity": {
  "children": [
    {
      "fmMplsOam": {
        "attributes": {
          "adminSt": "disabled"
}}}]}}

{
    imdata:[]
}

<System>
  <fm-items>
    <mplsoam-items>
      <adminSt>disabled</adminSt>
    </mplsoam-items>
  </fm-items>
</System>