topic Re: BGP VRF configuration in Tools

BGP VRF configuration

yitung — Tue, 03 Jan 2017 14:38:53 GMT

Hi ,

I want to do the following config but failed... anyone can help me to understand how to code it?? Many Thanks!!

I also have another question about how to add "redistribute connected". I can see "connected_routes" under Bgp.Instance.InstanceAs.FourByteAs.Vrfs.Vrf.VrfGlobal.VrfGlobalAfs.VrfGlobalAf but don't know how to construct "_is_presence"

=============================

router bgp 65001

vrf CCTV

rd 65001:211

address-family ipv4 unicast

redistribute connected

=============================

I add the following to the sample config - nc-create-xr-ipv4-bgp-cfg-40-ydk.py:

	# add VRF RD
	bgp_vrf = four_byte_as.vrfs.Vrf()
	bgp_vrf.vrf_name = "CCTV"
	bgp_vrf.vrf_global.route_distinguisher.as_ = 65001
	bgp_vrf.vrf_global.route_distinguisher.as_index = 211
	bgp_vrf.exists = Empty()

	# add VRF address_family name
	vrf_af_ipv4_unicast = bgp_vrf.vrf_global.vrf_global_afs.VrfGlobalAf()
	vrf_af_ipv4_unicast.af_name=xr_ipv4_bgp_datatypes.BgpAddressFamilyEnum.IPV4_UNICAST

	vrf_af_ipv4_unicast.enable = Empty()
	bgp_vrf.vrf_global.vrf_global_afs.vrf_global_af.append(vrf_af_ipv4_unicast)

	four_byte_as.vrfs.vrf.append(bgp_vrf)
	instance_as.four_byte_as.append(four_byte_as)
	instance.instance_as.append(instance_as)
	bgp.instance.append(instance)

Error display:

================

raise YPYServiceProviderError(error_code=YPYErrorCode.SERVER_COMMIT_ERR, error_msg=rep)

ydk.errors.YPYServiceProviderError: Server reported an error while committing change.

	error-type: application
	error-tag: operation-failed
	error-severity: error
	error-path: ns1:bgp/ns1:instance[instance-name = 'default']/ns1:instance-as[as = '0']/ns1:four-byte-as[as = '65001']/ns1:vrfs/ns1:vrf[vrf-name = 'CCTV']/ns1:vrf-global/ns1:route-distinguisher/ns1:as
	error-message: 'BGP' detected the 'warning' condition 'Invalid configuration item.'

Re: BGP VRF configuration

saalvare — Wed, 18 Jan 2017 21:56:10 GMT

You had a few mistakes. Lines 1-5, lines 11-12, line 15. See:

    # global address family
    global_af = four_byte_as.default_vrf.global_.global_afs.GlobalAf()
    global_af.af_name = xr_ipv4_bgp_datatypes.BgpAddressFamilyEnum.vp_nv4_unicast
    global_af.enable = Empty()
    four_byte_as.default_vrf.global_.global_afs.global_af.append(global_af)


    # add VRF RD
    bgp_vrf = four_byte_as.vrfs.Vrf()
    bgp_vrf.vrf_name = "CCTV"
    bgp_vrf.vrf_global.route_distinguisher.type = xr_ipv4_bgp_cfg.BgpRouteDistinguisherEnum.as_
    bgp_vrf.vrf_global.route_distinguisher.as_xx = 0
    bgp_vrf.vrf_global.route_distinguisher.as_ = 65001
    bgp_vrf.vrf_global.route_distinguisher.as_index = 211
    bgp_vrf.vrf_global.exists = Empty()


    # add VRF address_family name
    vrf_af_ipv4_unicast = bgp_vrf.vrf_global.vrf_global_afs.VrfGlobalAf()
    vrf_af_ipv4_unicast.af_name=xr_ipv4_bgp_datatypes.BgpAddressFamilyEnum.ipv4_unicast
    vrf_af_ipv4_unicast.enable = Empty()
    bgp_vrf.vrf_global.vrf_global_afs.vrf_global_af.append(vrf_af_ipv4_unicast)


    four_byte_as.vrfs.vrf.append(bgp_vrf)

Note that I'm running YDK 0.5.2, so the Enum capitalization is slightly different.

Here's app the log:

2017-01-18 13:37:54,945 - ydk.providers.netconf_provider - INFO - NetconfServiceProvider connected to carreras:None using ssh
2017-01-18 13:37:54,979 - ydk.services.crud_service - INFO - CREATE operation initiated
2017-01-18 13:37:54,983 - ydk.providers._provider_plugin - DEBUG -
<rpc xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:76421c22-4345-447d-ad76-360d7e3ce3d9">
  <edit-config>
    <target>
      <candidate/>
    </target>
    <config xmlns:xc="urn:ietf:params:xml:ns:netconf:base:1.0">
      <bgp xmlns="http://cisco.com/ns/yang/Cisco-IOS-XR-ipv4-bgp-cfg">
        <instance>
          <instance-name>default</instance-name>
          <instance-as>
            <as>0</as>
            <four-byte-as>
              <as>65001</as>
              <bgp-running></bgp-running>
              <default-vrf>
                <bgp-entity>
                  <neighbor-groups>
                    <neighbor-group>
                      <neighbor-group-name>IBGP</neighbor-group-name>
                      <create></create>
                      <neighbor-group-afs>
                        <neighbor-group-af>
                          <af-name>ipv4-unicast</af-name>
                          <activate></activate>
                        </neighbor-group-af>
                      </neighbor-group-afs>
                      <remote-as>
                        <as-xx>0</as-xx>
                        <as-yy>65001</as-yy>
                      </remote-as>
                      <update-source-interface>Loopback0</update-source-interface>
                    </neighbor-group>
                  </neighbor-groups>
                  <neighbors>
                    <neighbor>
                      <neighbor-address>172.16.255.2</neighbor-address>
                      <neighbor-group-add-member>IBGP</neighbor-group-add-member>
                    </neighbor>
                  </neighbors>
                </bgp-entity>
                <global>
                  <global-afs>
                    <global-af>
                      <af-name>ipv4-unicast</af-name>
                      <enable></enable>
                    </global-af>
                    <global-af>
                      <af-name>vp-nv4-unicast</af-name>
                      <enable></enable>
                    </global-af>
                  </global-afs>
                </global>
              </default-vrf>
              <vrfs>
                <vrf>
                  <vrf-name>CCTV</vrf-name>
                  <vrf-global>
                    <exists></exists>
                    <route-distinguisher>
                      <as>65001</as>
                      <as-index>211</as-index>
                      <as-xx>0</as-xx>
                      <type>as</type>
                    </route-distinguisher>
                    <vrf-global-afs>
                      <vrf-global-af>
                        <af-name>ipv4-unicast</af-name>
                        <enable></enable>
                      </vrf-global-af>
                    </vrf-global-afs>
                  </vrf-global>
                </vrf>
              </vrfs>
            </four-byte-as>
          </instance-as>
        </instance>
      </bgp>
    </config>
  </edit-config>
</rpc>


2017-01-18 13:37:55,099 - ydk.providers._provider_plugin - DEBUG -
<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:76421c22-4345-447d-ad76-360d7e3ce3d9">
  <ok/>
</rpc-reply>


2017-01-18 13:37:55,100 - ydk.providers._provider_plugin - DEBUG -
<rpc xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
  <commit/>
</rpc>


2017-01-18 13:37:55,466 - ydk.providers._provider_plugin - DEBUG -
<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:76421c22-4345-447d-ad76-360d7e3ce3d9">
  <ok/>
</rpc-reply>


2017-01-18 13:37:55,466 - ydk.services.crud_service - INFO - CREATE operation completed
2017-01-18 13:37:55,663 - ydk.providers.netconf_provider - INFO - NetconfServiceProvider disconnected from carreras using ssh

Re: BGP VRF configuration

saalvare — Mon, 23 Jan 2017 17:31:46 GMT

Overlooked your redistribution statement. You need to instantiate the presence class described in the documentation. See https://goo.gl/2mmaiT

This line creates the right config object:

    vrf_af_ipv4_unicast.connected_routes = vrf_af_ipv4_unicast.ConnectedRoutes()

Your IPv4 unicast config for the VRF would look:

    # add VRF RD
    bgp_vrf = four_byte_as.vrfs.Vrf()
    bgp_vrf.vrf_name = "CCTV"
    bgp_vrf.vrf_global.route_distinguisher.type = xr_ipv4_bgp_cfg.BgpRouteDistinguisherEnum.as_
    bgp_vrf.vrf_global.route_distinguisher.as_xx = 0
    bgp_vrf.vrf_global.route_distinguisher.as_ = 65001
    bgp_vrf.vrf_global.route_distinguisher.as_index = 211
    bgp_vrf.vrf_global.exists = Empty()

    # add VRF address_family name
    vrf_af_ipv4_unicast = bgp_vrf.vrf_global.vrf_global_afs.VrfGlobalAf()
    vrf_af_ipv4_unicast.af_name=xr_ipv4_bgp_datatypes.BgpAddressFamilyEnum.ipv4_unicast
    vrf_af_ipv4_unicast.enable = Empty()
    vrf_af_ipv4_unicast.connected_routes = vrf_af_ipv4_unicast.ConnectedRoutes()

Hope that clarifies.