Device Level Physical Topology Health
    
    
        Use this topic to learn about
            health of a device level physical topology.
     
        If a topology is invalid, the device level physical topology health is degraded or else
            healthy.
        Device level physical topology validations for non-Clos fabric
        
            - Ensure that two devices in rack must
                have link between them.
- Ensure that each rack is connected to
                at least another rack.
Device level physical topology validations for Clos fabric
        
            - Leaf node must be connected to all
                the Spine nodes.
- Spine node must be connected to all
                the Leaf nodes.
- Border Leaf node must be connected to
                all the Spine nodes or Superspine nodes but not both.
- Spine node must be connected to all
                the Border Leaf nodes.
- No more than two Leaf nodes must not
                be connected to each other.
- No more than two Border Leaf nodes
                must not be connected to each other.
- Border leaf node and leaf node must
                not be connected.
- Spine nodes must not be connected to
                each other.
- Spine nodes must not be connected to
                each other.
- Super Spine nodes must not be
                connected to each other
- If a Leaf node is marked as "multi-homed", then the node must have a MCT
                neighbor.
- If a Leaf node is marked as
                "single-homed", then the node must not be connected to other Leaf node(s).
- If a Border Leaf node is marked as "multi-homed", then the node must have a MCT
                neighbor.
- If a Border Leaf node is marked as
                "single-homed", then the node must not be connected to other Border Leaf
                node(s).