Cisco Nexus 3000 and 9000 Series NX-API REST SDK User Guide and API Reference, Release 10.5(x)

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Cisco Nexus 3000 and 9000 Series NX-API REST Documentation

Configuring Universal Id to Randomize Hash Functions for Load Balancing

DME

YANG

Copy
POST http://<mgmt0_IP>/api/mo/sys/ipv4/inst.json
{
  "ipv4Inst": {
    "children": [
      {
        "ipv4IPLoadSharing": {
          "attributes": {
            "concatenation": "disabled",
            "greOuterHash": "enabled",
            "loadShareMode": "srcDest",
            "rotate": "43",
            "universalID": "1"
}}}]}}
Response
{
    imdata:[]
}

Copy
<System>
  <ipv4-items>
    <inst-items>
      <iploadsharing-items>
        <concatenation>disabled</concatenation>
        <greOuterHash>enabled</greOuterHash>
        <loadShareMode>srcDest</loadShareMode>
        <rotate>43</rotate>
        <universalID>1</universalID>
      </iploadsharing-items>
    </inst-items>
  </ipv4-items>
</System>

Configuring ECMP Load Balancing

Configuring Universal Id to Randomize Hash Functions for Load Balancing

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.

ip load-sharing address source-destination gre-outer rotate 43 universal-id 1

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
ipv4Inst	sys/ipv4/inst
ipv4IPLoadSharing	sys/ipv4/inst/iploadsharing

ipv4IPLoadSharing Properties

The following table contains information about the ipv4IPLoadSharing 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
concatenation	nw:AdminSt (scalar:Enum8)	Concatenation	SELECTION: 1 - enabled 2 - disabled DEFAULT: disabled
greOuterHash	nw:AdminSt (scalar:Enum8)	GRE Outer Hash	SELECTION: 1 - enabled 2 - disabled DEFAULT: disabled
loadShareMode	ip:LoadShareFormat (scalar:Enum8)	Load sharing mode	SELECTION: 1 - disabled 2 - destPort 3 - srcDest 4 - srcDestGre 5 - srcDestPort 6 - source 7 - srcDestGTPU 8 - srcDestSymmetric 9 - srcDestInnerAll 10 - srcDestInnerGre 11 - srcDestInnerGreSymmetric DEFAULT: disabled
rotate	scalar:Uint16	Rotate	RANGE: [1 , 63] DEFAULT: 32
universalID	scalar:Uint32	Universal-ID(Random seed)	RANGE: [0 , 4294967295]

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

Deleting Universal Id to Randomize Hash Functions for Load Balancing