> Source: https://docs.nometa.az/device-panels/ndo

# Nexus Dashboard Orchestrator

Multi-Site Orchestrator (NDO) gives the cross-site view: schemas, templates, stretched tenants, EPGs/BDs/VRFs and contracts that span data centers.

> Open a device from the **Devices** page or the sidebar to reach these tabs.

## Tenants

ACI tenants — the top-level policy and isolation boundary.

![Tenants](/img/05-device-panels/ndo/ndo-01-tenants.png)

## Schemas

NDO schemas and templates that define stretched policy.

![Schemas](/img/05-device-panels/ndo/ndo-02-schemas.png)

## Datacenters

Sites / datacenters managed by the orchestrator.

![Datacenters](/img/05-device-panels/ndo/ndo-03-datacenters.png)

## Epgs

Endpoint groups — the policy unit endpoints belong to.

![Epgs](/img/05-device-panels/ndo/ndo-04-epgs.png)

## Bds

Bridge domains and their subnets.

![Bds](/img/05-device-panels/ndo/ndo-05-bds.png)

## Vrfs

VRFs (private networks) and their associations.

![Vrfs](/img/05-device-panels/ndo/ndo-06-vrfs.png)

## App Profiles

Application profiles grouping related EPGs.

![App Profiles](/img/05-device-panels/ndo/ndo-07-app-profiles.png)

## Contracts

Contracts and their consumer/provider EPGs — the ACI access policy.

![Contracts](/img/05-device-panels/ndo/ndo-08-contracts.png)

## Filters

Filters and entries (protocol/port) referenced by contracts.

![Filters](/img/05-device-panels/ndo/ndo-09-filters.png)

## Changes

Configuration changes over time, correlated to the responsible admin where audit data is available. Cards expand to a field-level diff.

![Changes](/img/05-device-panels/ndo/ndo-11-changes.png)