The datamodels can be retrieved from the following locations:

• Github

• OcNOS installed devices.

Users can access the YANG data models on GitHub through the following link: GitHub - IPInfusion/OcNOS: OcNOS™ Network Operating System

Note: This link directs to the 'master' branch, which may not always be the latest or up to date. To access specific YANG models based on OcNOS release version, follow these steps:

• Click on ‘master’.

• From the dropdown menu, enter a search string, such as "5.1," "6.0.0," or "6.3.0," corresponding to the OcNOS release version for which the YANG models are needed.

• Select the desired version from the dropdown and click to switch the branch.

Before proceeding, refer to the snapshot below to understand how to choose the branch version:

The Yang models are available inside the “yang-files” folder. OcNOS supports two types of Datamodels:

1. IPI Datamodels

2. OpenConfig datamodels

Here is a snapshot for reference:

OcNOS supports the IPI Datamodels, which are considered the 'native' datamodels. These models are used to represent all configurations and operational attributes of OcNOS. The IPI Datamodels adhere to OpenConfig style guidelines, ensuring a clear separation of 'config' and 'state' attributes. User can find these datamodels inside the "yang-files/ipi" folder on GitHub. Here is a snapshot for reference:

To access the Pyang Trees, follow these steps:

1. Scroll down to the bottom of the page and click on “pyang.html”.

2. On the Pyang page, right-click on 'view raw' and choose 'Save link as...' Do not select ‘Download’.

Refer to the snapshot below:

3. After saving the pyang HTML page, user can access the Pyang tree. Once the page is open, scroll down to find the individual datamodel pyang trees. Refer to the snapshot below:

OcNOS supports both native IPI models and OpenConfig standard-defined datamodels. Not all attributes of OpenConfig are supported. Some additional attributes are added in OpenConfig for operational purposes, which are defined in the IPI OpenConfig deviation yang files.

To use OpenConfig datamodels, users must combine IPI deviation files with OpenConfig yang files. Here's how to do it:

• Obtain the deviation files from the "yang-files/openconfig" folder on the IPInfusion GitHub.

• In this folder, a README file contains the OpenConfig SHA1 to be used.

• Previously, OpenConfig didn't have a release versioning. To get the files, use git:

After performing the git checkout, find the yang files in the "openconfig/release/models" folder.

Note: OpenConfig has now added versioning support and future OcNOS releases will align with OpenConfig's released versions.

Not all attributes of the OpenConfig datamodels are supported, and there are some variations in the ones that are supported. Detailed information is tabulated in the 'yang deviation' files located within the "yang-files/openconfig" folder.

The Pyang Tree for OpenConfig can also be found on GitHub under "yang-files/openconfig/openconfig.html.

To download the HTML file and open it, follow the same instructions provided in section 2.1.2.1 for IPI Pyang Tree.

This provides a consolidated view of OpenConfig support in OcNOS, including only the attributes that are supported, by incorporating the yang deviations. Refer to the snapshot below for guidance.

After the installation of OcNOS, all Yang models are loaded onto the device and can be found in the following location:

Use the "find" command to explore the available models further.