Adding connection b/w physical servers and switches

app/models/physical_network_port.rb

@@ -1,4 +1,18 @@
 class PhysicalNetworkPort < ApplicationRecord
   belongs_to :guest_device
   belongs_to :physical_switch
+
+  #
+  # Get the peer port connected.
+  #   A connected port has the mac address of the pair in its
+  #   peer_mac_address field.
+  #
+  # @return [PhysicalNetworkPort] - the connected port
+  #
+  def connected_port
+    port = PhysicalNetworkPort.find_by('peer_mac_address IS NOT NULL AND peer_mac_address = ?', mac_address)
+    port = PhysicalNetworkPort.find_by('mac_address IS NOT NULL AND mac_address = ?', peer_mac_address) if port.blank?
+
+    port
+  end
 end

app/models/physical_server.rb

@@ -104,4 +104,24 @@ def v_availability
   def v_host_os
     host.try(:vmm_product).nil? ? N_("") : host.vmm_product
   end
+
+  #
+  # Searches the switches that are connected to the physical server
+  #   it evaluates the server physical network ports that are
+  #   connected with switch physical network ports
+  #
+  # @returns [Array<PhysicalSwitch>] - a list of connected switches,
+  #   and if it isn't connected to any, returns an empty list.
+  #
+  def switches
+    switches = []
+
+    hardware.nics&.each do |network_device|
+      network_device.physical_network_ports&.each do |port|
+        switches << PhysicalSwitch.find(port.connected_port.switch_id) if port.connected_port.try(:switch_id).present?
+      end
+    end
+
+    switches
+  end
 end