Configuring Community Lists

You can use community lists to filter BGP routes based on the community attribute. The community number consists of a 4-byte value in the aa:nn format. The first two bytes represent the autonomous system number, and the last two bytes represent a user-defined network number. When you configure multiple values in the same community list statement, all community values must match to satisfy the community list filter. When you configure multiple values in separate community list statements, the first list that matches a condition is processed. Use community lists in a match statement to filter BGP routes based on the community attribute.

For more information, see the Cisco Nexus 9000 Series NX-OS Unicast Routing Configuration Guide:

https://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-installation-and-configuration-guides-list.html/

Configuring a Standard Community List to Accept

Configuring a Standard Community List to Accept

POST http://<mgmt0_IP>/api/mo/sys.json

{
  "topSystem": {
    "children": [
      {
        "rpmEntity": {
          "children": [
            {
              "rtregcomRule": {
                "attributes": {
                  "name": "SampleString_123"
                },
                "children": [
                  {
                    "rtregcomEntry": {
                      "attributes": {
                        "action": "permit",
                        "order": "1243"
                      },
                      "children": [
                        {
                          "rtregcomItem": {
                            "attributes": {
                              "community": "regular:as2-nn2:65535:0"
                            }
                          }
                        },
                        {
                          "rtregcomItem": {
                            "attributes": {
                              "community": "regular:as2-nn2:65535:65283"
                            }
                          }
                        },
                        {
                          "rtregcomItem": {
                            "attributes": {
                              "community": "regular:as2-nn2:123:12"
                            }
                          }
                        },
                        {
                          "rtregcomItem": {
                            "attributes": {
                              "community": "regular:as2-nn2:0:0"
                            }
                          }
                        },
                        {
                          "rtregcomItem": {
                            "attributes": {
                              "community": "regular:as2-nn2:65535:65282"
                            }
                          }
                        },
                        {
                          "rtregcomItem": {
                            "attributes": {
                              "community": "regular:as2-nn2:65535:65281"
                            }
                          }
                        }
                      ]
                    }
                  }
                ]
              }
            }
          ]
        }
      }
    ]
  }
}

{
    imdata:[]
}

<System>
  <rpm-items>
    <rtregcom-items>
      <Rule-list>
        <name>SampleString_123</name>
        <ent-items>
          <Entry-list>
            <order>1243</order>
            <action>permit</action>
            <item-items>
              <Item-list>
                <community>regular:as2-nn2:65535:0</community>
              </Item-list>
              <Item-list>
                <community>regular:as2-nn2:65535:65283</community>
              </Item-list>
              <Item-list>
                <community>regular:as2-nn2:123:12</community>
              </Item-list>
              <Item-list>
                <community>regular:as2-nn2:0:0</community>
              </Item-list>
              <Item-list>
                <community>regular:as2-nn2:65535:65282</community>
              </Item-list>
              <Item-list>
                <community>regular:as2-nn2:65535:65281</community>
              </Item-list>
            </item-items>
          </Entry-list>
        </ent-items>
      </Rule-list>
    </rtregcom-items>
  </rpm-items>
</System>

Note: This example was added in Release 9.3(1).


CLI Commands

The CLI commands are equivalent to the payload examples displayed in the pane on the right. Click the DME tab in the top-left corner of the right pane to view the JSON payload. Click the YANG tab to view the XML payload.

ip community-list standard SampleString_123 seq 1243 permit internet no-advertise no-export local-AS graceful-shutdown 123:12


Verifying a DME Configuration

The following table contains the distinguished name (DN) for each managed object (MO) in the DME payload. Issue a GET request using the DN to verify the configuration was posted or to get information about the configured properties of a particular object.

MODN
topSystem sys
rpmEntity sys/rpm
rtregcomRule sys/rpm/rtregcom-[SampleString_123]
rtregcomEntry sys/rpm/rtregcom-[SampleString_123]/ent-1243
rtregcomItem sys/rpm/rtregcom-[SampleString_123]/ent-1243/item-regular:as2-nn2:65535:0
rtregcomItem sys/rpm/rtregcom-[SampleString_123]/ent-1243/item-regular:as2-nn2:65535:65283
rtregcomItem sys/rpm/rtregcom-[SampleString_123]/ent-1243/item-regular:as2-nn2:123:12
rtregcomItem sys/rpm/rtregcom-[SampleString_123]/ent-1243/item-regular:as2-nn2:0:0
rtregcomItem sys/rpm/rtregcom-[SampleString_123]/ent-1243/item-regular:as2-nn2:65535:65282
rtregcomItem sys/rpm/rtregcom-[SampleString_123]/ent-1243/item-regular:as2-nn2:65535:65281


rtregcomRule Properties

The following table contains information about the rtregcomRule properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
name
pol:ObjName
string:Basic		The name of the object. RANGE: Min: "1" Max: "64"


rtregcomEntry Properties

The following table contains information about the rtregcomEntry properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
actionrtflt:Action
(scalar:Enum8)		ActionSELECTION:
0 - deny
1 - permit
DEFAULT: permit
orderrtflt:Order
(scalar:Uint32)		Order
RANGE: [0 , 65535]


rtregcomItem Properties

The following table contains information about the rtregcomItem properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
communitybase:Community
Community


rtregcomItem Properties

The following table contains information about the rtregcomItem properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
communitybase:Community
Community


rtregcomItem Properties

The following table contains information about the rtregcomItem properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
communitybase:Community
Community


rtregcomItem Properties

The following table contains information about the rtregcomItem properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
communitybase:Community
Community


rtregcomItem Properties

The following table contains information about the rtregcomItem properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
communitybase:Community
Community


rtregcomItem Properties

The following table contains information about the rtregcomItem properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
communitybase:Community
Community


Related Documentation

For other CLI options, see the Cisco Nexus 9000 Series NX-OS Command Reference:

http://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-command-reference-list.html

See the NX-API DME Model Reference for detailed information about classes and attributes described in the payload:

https://developer.cisco.com/site/nx-os/docs/nexus-model-reference/

For information about using the payloads, see the Cisco Nexus 9000 Series NX-OS Programmability Guide:

https://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-programming-reference-guides-list.html

Deleting a Standard Community List to Accept

Deleting a Standard Community List to Accept 

POST http://<mgmt0_IP>/api/mo/sys.json

{
  "topSystem": {
    "children": [
      {
        "rpmEntity": {
          "children": [
            {
              "rtregcomRule": {
                "attributes": {
                  "name": "SampleString_123"
                },
                "children": [
                  {
                    "rtregcomEntry": {
                      "attributes": {
                        "order": "1243"
                      },
                      "children": [
                        {
                          "rtregcomItem": {
                            "attributes": {
                              "community": "regular:as2-nn2:65535:0",
                              "status": "deleted"
                            }
                          }
                        },
                        {
                          "rtregcomItem": {
                            "attributes": {
                              "community": "regular:as2-nn2:65535:65283",
                              "status": "deleted"
                            }
                          }
                        },
                        {
                          "rtregcomItem": {
                            "attributes": {
                              "community": "regular:as2-nn2:123:12",
                              "status": "deleted"
                            }
                          }
                        },
                        {
                          "rtregcomItem": {
                            "attributes": {
                              "community": "regular:as2-nn2:0:0",
                              "status": "deleted"
                            }
                          }
                        },
                        {
                          "rtregcomItem": {
                            "attributes": {
                              "community": "regular:as2-nn2:65535:65282",
                              "status": "deleted"
                            }
                          }
                        },
                        {
                          "rtregcomItem": {
                            "attributes": {
                              "community": "regular:as2-nn2:65535:65281",
                              "status": "deleted"
                            }
                          }
                        }
                      ]
                    }
                  }
                ]
              }
            }
          ]
        }
      }
    ]
  }
}

{
    imdata:[]
}

<System>
  <rpm-items>
    <rtregcom-items>
      <Rule-list>
        <name>SampleString_123</name>
        <ent-items>
          <Entry-list>
            <order>1243</order>
            <item-items>
              <Item-list nc:operation="delete">
                <community>regular:as2-nn2:65535:0</community>
              </Item-list>
              <Item-list nc:operation="delete">
                <community>regular:as2-nn2:65535:65283</community>
              </Item-list>
              <Item-list nc:operation="delete">
                <community>regular:as2-nn2:123:12</community>
              </Item-list>
              <Item-list nc:operation="delete">
                <community>regular:as2-nn2:0:0</community>
              </Item-list>
              <Item-list nc:operation="delete">
                <community>regular:as2-nn2:65535:65282</community>
              </Item-list>
              <Item-list nc:operation="delete">
                <community>regular:as2-nn2:65535:65281</community>
              </Item-list>
            </item-items>
          </Entry-list>
        </ent-items>
      </Rule-list>
    </rtregcom-items>
  </rpm-items>
</System>

Note: This example was added in Release 9.3(1).


CLI Commands

The CLI commands are equivalent to the payload examples displayed in the pane on the right. Click the DME tab in the top-left corner of the right pane to view the JSON payload. Click the YANG tab to view the XML payload.

no ip community-list standard SampleString_123 seq 1243 permit internet no-advertise no-export local-AS graceful-shutdown 123:12


Verifying a DME Configuration

The following table contains the distinguished name (DN) for each managed object (MO) in the DME payload. Issue a GET request using the DN to verify the configuration was posted or to get information about the configured properties of a particular object.

MODN
topSystem sys
rpmEntity sys/rpm
rtregcomRule sys/rpm/rtregcom-[SampleString_123]
rtregcomEntry sys/rpm/rtregcom-[SampleString_123]/ent-1243
rtregcomItem sys/rpm/rtregcom-[SampleString_123]/ent-1243/item-regular:as2-nn2:65535:0
rtregcomItem sys/rpm/rtregcom-[SampleString_123]/ent-1243/item-regular:as2-nn2:65535:65283
rtregcomItem sys/rpm/rtregcom-[SampleString_123]/ent-1243/item-regular:as2-nn2:123:12
rtregcomItem sys/rpm/rtregcom-[SampleString_123]/ent-1243/item-regular:as2-nn2:0:0
rtregcomItem sys/rpm/rtregcom-[SampleString_123]/ent-1243/item-regular:as2-nn2:65535:65282
rtregcomItem sys/rpm/rtregcom-[SampleString_123]/ent-1243/item-regular:as2-nn2:65535:65281


rtregcomRule Properties

The following table contains information about the rtregcomRule properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
name
pol:ObjName
string:Basic		The name of the object. RANGE: Min: "1" Max: "64"


rtregcomEntry Properties

The following table contains information about the rtregcomEntry properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
orderrtflt:Order
(scalar:Uint32)		Order
RANGE: [0 , 65535]


rtregcomItem Properties

The following table contains information about the rtregcomItem properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
communitybase:Community
Community
statusmo:ModificationStatus
(scalar:Bitmask32)		Modification statusSELECTION:
2 - created
4 - modified
8 - deleted
16 - replaced


rtregcomItem Properties

The following table contains information about the rtregcomItem properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
communitybase:Community
Community
statusmo:ModificationStatus
(scalar:Bitmask32)		Modification statusSELECTION:
2 - created
4 - modified
8 - deleted
16 - replaced


rtregcomItem Properties

The following table contains information about the rtregcomItem properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
communitybase:Community
Community
statusmo:ModificationStatus
(scalar:Bitmask32)		Modification statusSELECTION:
2 - created
4 - modified
8 - deleted
16 - replaced


rtregcomItem Properties

The following table contains information about the rtregcomItem properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
communitybase:Community
Community
statusmo:ModificationStatus
(scalar:Bitmask32)		Modification statusSELECTION:
2 - created
4 - modified
8 - deleted
16 - replaced


rtregcomItem Properties

The following table contains information about the rtregcomItem properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
communitybase:Community
Community
statusmo:ModificationStatus
(scalar:Bitmask32)		Modification statusSELECTION:
2 - created
4 - modified
8 - deleted
16 - replaced


rtregcomItem Properties

The following table contains information about the rtregcomItem properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property NameData TypeDescriptionValues
communitybase:Community
Community
statusmo:ModificationStatus
(scalar:Bitmask32)		Modification statusSELECTION:
2 - created
4 - modified
8 - deleted
16 - replaced


Related Documentation

For other CLI options, see the Cisco Nexus 9000 Series NX-OS Command Reference:

http://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-command-reference-list.html

See the NX-API DME Model Reference for detailed information about classes and attributes described in the payload:

https://developer.cisco.com/site/nx-os/docs/nexus-model-reference/

For information about using the payloads, see the Cisco Nexus 9000 Series NX-OS Programmability Guide:

https://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-programming-reference-guides-list.html