Adding property - fabric forwarding mode anycast-gateway, to Cisco_Interface

CHANGELOG.md

@@ -103,6 +103,7 @@ Changelog
   * `suppress_inactive`
   * `table_map`
 * Extend interface with attributes:
+  * `fabric_forwarding_anycast_gateway`
   * `ipv4_acl_in`, `ipv4_acl_out`, `ipv6_acl_in`, `ipv6_acl_out`
   * `ipv4_address_secondary`, `ipv4_arp_timeout`
   * `vlan_mapping`

lib/cisco_node_utils/cmd_ref/interface.yaml

@@ -46,6 +46,12 @@ encapsulation_dot1q:
   config_set_append: "%s encapsulation dot1q %s"
   default_value: ""
 
+fabric_forwarding_anycast_gateway:
+  kind: boolean
+  config_get_token_append: '/^fabric forwarding mode anycast-gateway$/'
+  config_set_append: "%s fabric forwarding mode anycast-gateway"
+  default_value: false
+
 feature_lacp:
   kind: boolean
   config_get: "show running | i ^feature"

lib/cisco_node_utils/interface.rb

@@ -19,6 +19,7 @@
 require_relative 'pim'
 require_relative 'vrf'
 require_relative 'vni'
+require_relative 'overlay_global'
 
 # Add some interface-specific constants to the Cisco namespace
 module Cisco
@@ -205,6 +206,28 @@ def fabricpath_feature_set(fabricpath_set)
       FabricpathGlobal.fabricpath_feature_set(fabricpath_set)
     end
 
+    def fabric_forwarding_anycast_gateway
+      config_get('interface', 'fabric_forwarding_anycast_gateway', @name)
+    end
+
+    def fabric_forwarding_anycast_gateway=(state)
+      no_cmd = (state ? '' : 'no')
+      config_set('interface',
+                 'fabric_forwarding_anycast_gateway', @name, no_cmd)
+      fail if fabric_forwarding_anycast_gateway.to_s != state.to_s
+    rescue Cisco::CliError => e
+      anycast_gateway_mac = OverlayGlobal.new.anycast_gateway_mac
+      if anycast_gateway_mac.nil? || anycast_gateway_mac.empty?
+        raise "[#{@name}] '#{e.command}' : #{e.clierror}
+               Anycast gateway mac needs to be configured
+               before configuring forwarding mode under interface"
+      end
+    end
+
+    def default_fabric_forwarding_anycast_gateway
+      config_get_default('interface', 'fabric_forwarding_anycast_gateway')
+    end
+
     def fex_feature
       fex = config_get('fex', 'feature')
       fail 'fex_feature not found' if fex.nil?

lib/cisco_node_utils/overlay_global.rb

@@ -131,7 +131,7 @@ def anycast_gateway_mac
     def anycast_gateway_mac=(mac_addr)
       fail TypeError unless mac_addr.is_a?(String)
 
-      Feature.nv_overlay_evpn_enable unless Feature.nv_overlay_evpn_enabled?
+      Feature.nv_overlay_evpn_enable
       if mac_addr == default_anycast_gateway_mac
         state = 'no'
         mac_addr = ''

tests/test_interface.rb

@@ -15,6 +15,7 @@
 require_relative 'ciscotest'
 require_relative '../lib/cisco_node_utils/acl'
 require_relative '../lib/cisco_node_utils/interface'
+require_relative '../lib/cisco_node_utils/overlay_global'
 
 include Cisco
 
@@ -958,6 +959,42 @@ def test_interface_ipv4_arp_timeout
     assert_raises(RuntimeError) { nonvlanint.ipv4_arp_timeout = 300 }
   end
 
+  def test_interface_fabric_forwarding_anycast_gateway
+    # Setup
+    config('no interface vlan11')
+    int = Interface.new('vlan11')
+    foo = OverlayGlobal.new
+    foo.anycast_gateway_mac = '1223.3445.5668'
+
+    # 1. Testing default
+    int.fabric_forwarding_anycast_gateway =
+      int.default_fabric_forwarding_anycast_gateway
+    assert_equal(int.default_fabric_forwarding_anycast_gateway,
+                 int.fabric_forwarding_anycast_gateway)
+
+    # 2. Testing non-default:true
+    int.fabric_forwarding_anycast_gateway = true
+    assert(int.fabric_forwarding_anycast_gateway)
+
+    # 3. Setting back to false
+    int.fabric_forwarding_anycast_gateway = false
+    refute(int.fabric_forwarding_anycast_gateway)
+
+    # 4. Removing fabric forwarding anycast gateway mac
+    foo.anycast_gateway_mac = foo.default_anycast_gateway_mac
+    assert_raises(RuntimeError) { int.fabric_forwarding_anycast_gateway = true }
+
+    # 5. Removing feature fabric forwarding
+    config('no feature fabric forwarding')
+    assert_raises(RuntimeError) { int.fabric_forwarding_anycast_gateway = true }
+
+    # 6. Attempting to configure on a non-vlan interface
+    nonvlanint = create_interface
+    assert_raises(RuntimeError) do
+      nonvlanint.fabric_forwarding_anycast_gateway = true
+    end
+  end
+
   def test_interface_ipv4_proxy_arp
     interface = create_interface
     interface.switchport_mode = :disabled