Configuring Switching Modes

The switching mode determines whether the switch begins forwarding the frame as soon as the switch has read the destination details in the packet header or waits until the entire frame has been received and checked for cyclic redundancy check (CRC) errors before forwarding them to the network.

The switching mode is applicable to all packets being switched or routed through the hardware and can be saved persistently through reboots and restarts.

For more information, see the Cisco Nexus 9000 Series NX-OS Layer 2 Switching Configuration Guide.

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

Configuring the Fabric Speed at 40G Instead of 42G

Configuring the Fabric Speed at 40G Instead of 42G

POST http://<mgmt0_IP>/api/mo/sys.json

{
  "topSystem": {
    "children": [
      {
        "platformEntity": {
          "attributes": {
            "switchingFabricSpeed": "fabric-speed-40g"
}}}]}}

{
    imdata:[]
}

<System>
  <pltfm-items>
    <switchingFabricSpeed>fabric-speed-40g</switchingFabricSpeed>
  </pltfm-items>
</System>

Note: This example was added in Release 9.3(1).

CLI Commands

The CLI commands are equivalent to the payload examples displayed in the pane on the right. Click the DME tab in the top-left corner of the right pane to view the JSON payload. Click the YANG tab to view the XML payload.

switching-mode fabric-speed 40g

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
platformEntity	sys/pltfm

platformEntity Properties

The following table contains information about the platformEntity 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
switchingFabricSpeed	platform:FabricSpeed (scalar:Enum8)	Corresponds to the switching fabric speed.	SELECTION: 0 - default 1 - fabric-speed-40g DEFAULT: default

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

For detailed information about classes and attributes in the payload, see the NX-API DME Model Reference: https://developer.cisco.com/media/dme/index.html

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

Deleting the Fabric Speed at 40G Instead of 42G

Deleting the Fabric Speed at 40G Instead of 42G

POST http://<mgmt0_IP>/api/mo/sys.json

{
  "topSystem": {
    "children": [
      {
        "platformEntity": {
          "attributes": {
            "switchingFabricSpeed": "default"
}}}]}}

{
    imdata:[]
}

<System>
  <pltfm-items>
    <switchingFabricSpeed>default</switchingFabricSpeed>
  </pltfm-items>
</System>