bgp_oper error

[michal.plesko@gmail.com]

Hi,

want to READ just extended communites and networks from bgp_oper model. Nothing more. But I face some problem with vrf.vrf_name = READ() object. It works for one VRF if I put the name explicitly but it doesnt work with READ() object. Can you please help me?

thanks

[abhirame]

Can you please add the script which you are trying to run?

Thanks

[michal.plesko@gmail.com]

Hi, pls check attached bgp_oper.py in original post.

[abhirame]

Thanks! The READ object can be used with non-key leafs. If you want to read only the networks under a BGP instance, please try the below:

bgp = Cisco_IOS_XR_ipv4_bgp_oper.Bgp()

instance = Cisco_IOS_XR_ipv4_bgp_oper.Bgp.Instances.Instance()

instance.instance_name = 'default'

vrf = Cisco_IOS_XR_ipv4_bgp_oper.Bgp.Instances.Instance.InstanceActive.Vrfs.Vrf()

vrf.vrf_name = 'default'

af = Cisco_IOS_XR_ipv4_bgp_oper.Bgp.Instances.Instance.InstanceActive.Vrfs.Vrf.Afs.Af()

af.af_name = Cisco_IOS_XR_ipv4_bgp_datatypes.BgpAddressFamilyEnum.ipv4_unicast

network = Cisco_IOS_XR_ipv4_bgp_oper.Bgp.Instances.Instance.InstanceActive.Vrfs.Vrf.Afs.Af.Networks.Network()

af.networks.network.append(network)

vrf.afs.af.append(af)

instance.instance_active.vrfs.vrf.append(vrf)

bgp.instances.instance.append(instance)

bgp_networks = crud.read(provider, network)

[michal.plesko@gmail.com]

hi,

same error also with network object for vrf default. I think it's due to common_attributes was part of network object too.

Traceback (most recent call last):

  File "CAD/bgp_oper.py", line 42, in <module>

    bgp_routes = crud.read(provider, network)

  File "/usr/local/lib/python3.5/dist-packages/ydk/services/crud_service.py", line 150, in read

    payload = self._execute_crud_operation_on_provider(provider, read_filter, 'READ', only_config)

  File "/usr/local/lib/python3.5/dist-packages/ydk/services/crud_service.py", line 167, in _execute_crud_operation_on_provider

    operation

  File "/usr/local/lib/python3.5/dist-packages/ydk/services/service.py", line 36, in execute_payload

    reply = provider.execute(payload, operation)

  File "/usr/local/lib/python3.5/dist-packages/ydk/providers/netconf_provider.py", line 94, in execute

    return self.sp_instance.execute_operation(payload, operation)

  File "/usr/local/lib/python3.5/dist-packages/ydk/providers/_provider_plugin.py", line 224, in execute_operation

    return self._handle_rpc_reply(operation, payload, reply.xml)

  File "/usr/local/lib/python3.5/dist-packages/ydk/providers/_provider_plugin.py", line 246, in _handle_rpc_reply

    self._handle_rpc_error(payload, reply_str, pathlist)

  File "/usr/local/lib/python3.5/dist-packages/ydk/providers/_provider_plugin.py", line 259, in _handle_rpc_error

    raise YPYServiceProviderError(error_code=YPYErrorCode.SERVER_REJ, error_msg=reply_str)

ydk.errors.YPYServiceProviderError: Server rejected request.

error-type: application

error-tag: operation-failed

error-severity: error

error-path: ns1:bgp/ns1:instances/ns1:instance[instance-name = 'default']/ns1:instance-active/ns1:vrfs/ns1:vrf[vrf-name = 'default']/ns1:afs/ns1:af[af-name = 'ipv4-unicast']/ns1:networks/ns1:network

error-message: 'YANG framework' detected the 'fatal' condition 'Operation failed'

[abhirame]

OK. Are you able to run a <get> RPC for the same data using netconf? If so do you have the XML snippet for this?

[michal.plesko@gmail.com]

Hi, not sure if doing it right with ncclient, as I am not very familiar with it and also not with rpc, but I am able to get list of vrfs, but list of networks is empty, details in attachment. thanks a lot

[einarnn]

Michal,

You're using ncclient correctly (BTW, I can also suggest that you may want to take a look at GitHub - CiscoDevNet/ncc: ncclient scripts and helpers; the script ncc.py provides a way to work with "snippets" of lower-level XML config)

However, the request may not be quite correct. The form you have used only asks the platform to return the element <vrf-name>. Can you instead try something like:

                    <bgp xmlns="http://cisco.com/ns/yang/Cisco-IOS-XR-ipv4-bgp-oper">

                        <instances>

                            <instance>

                                <instance-active>

                                    <vrfs>

                                        <vrf>

                                            <afs>

                                              <af>

                                                <networks>

                                                  <network>

                                                    <network/>

                                                  </network>

                                                </networks>

                                              </af>

                                            </afs>

                                        </vrf>

                                    </vrfs>

                                </instance-active>

                            </instance>

                        </instances>

                    </bgp>

This should return the inet:ip-prefix for all AFs and networks under all VRFs.

Cheers,

Einar

[abhirame · Accepted solution]

Thanks. Currently, YDK does not support read filters for nested lists with no keys. We only support not providing the key for the deepest list in the nested hierarchy. We will be adding support for this in the future. This issue is tracking it.

[mufaddal.presswala]

Hello again,

I was trying to retrieve the networks from BGP in the default vrf table . I understand that because of the bug Need to support read filters for nested lists with no keys · Issue #399 · CiscoDevNet/ydk-gen · GitHub I cannot set the value in the last nested class. But even with this workaround I am unable to retrieve the list of networks.

This is the test code

#!/usr/bin/env python


from ydk.services import CRUDService, CodecService, NetconfService, Datastore
from ydk.providers import CodecServiceProvider, NetconfServiceProvider
from ydk.models.cisco_ios_xr import Cisco_IOS_XR_ipv4_bgp_oper \
    as xr_ipv4_bgp_oper
from ydk.models.cisco_ios_xr import Cisco_IOS_XR_ipv4_bgp_datatypes \
    as xr_ipv4_bgp_datatypes
from ydk.types import Empty, YList, YLeafList, DELETE, Decimal64, FixedBitsDict, READ
import logging




#get operational data for BGP -option 1
bgp1 = xr_ipv4_bgp_oper.Bgp()

instance = bgp1.instances.Instance()
instance.instance_name = "default"

default_vrf = instance.instance_active.default_vrf


af = default_vrf.afs.Af()
af.af_name = xr_ipv4_bgp_datatypes.BgpAddressFamilyEnum.ipv4_unicast


network1 = af.networks.Network()
#network1.network = "192.168.0.100/32"


af.networks.network.append(network1)
default_vrf.afs.af.append(af)
bgp1.instances.instance.append(instance)


# create NETCONF provider
provider = NetconfServiceProvider(address="172.16.1.1",
                                  port="830",
                                  username="cisco",
                                  password="cisco",
                                  protocol="ssh")


# create codec provider
codec_provider = CodecServiceProvider(type="xml")


#creating crud & codec service
crud = CRUDService()
codec = CodecService()


#read operational data
networks = crud.read(provider,network1)
print codec.encode(codec_provider,networks)


#close session
provider.close()
codec_provider.close()

[abhirame]

Hi Mufaddal,

Can you try the below?

from ydk.models.cisco_ios_xr import Cisco_IOS_XR_ipv4_bgp_oper as xr_ipv4_bgp_oper 
from ydk.models.cisco_ios_xr import Cisco_IOS_XR_ipv4_bgp_datatypes as xr_ipv4_bgp_datatypes 

bgp = xr_ipv4_bgp_oper.Bgp()

i = xr_ipv4_bgp_oper.Bgp.Instances.Instance()
i.instance_name='default'

af = xr_ipv4_bgp_oper.Bgp.Instances.Instance.InstanceActive.DefaultVrf.Afs.Af()
af.af_name = xr_ipv4_bgp_datatypes.BgpAddressFamilyEnum.ipv4_unicast

n = xr_ipv4_bgp_oper.Bgp.Instances.Instance.InstanceActive.DefaultVrf.Afs.Af.Networks.Network()

af.networks.network.append(n)
i.instance_active.default_vrf.afs.af.append(af)
bgp.instances.instance.append(i)

result=crud.read(provider,n)

Results in below RPC:

2017-07-25 15:11:02,575 - ydk.services.crud_service - INFO - READ operation initiated
2017-07-25 15:11:02,576 - ydk.providers._provider_plugin - DEBUG - 
<rpc xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:b177072e-68d9-442a-a9c7-1fe478a762ba">
  <get>
    <filter type="subtree">
      <bgp xmlns="http://cisco.com/ns/yang/Cisco-IOS-XR-ipv4-bgp-oper">
        <instances>
          <instance>
            <instance-name>default</instance-name>
            <instance-active>
              <default-vrf>
                <afs>
                  <af>
                    <af-name>ipv4-unicast</af-name>
                    <networks>
                      <network/>
                    </networks>
                  </af>
                </afs>
              </default-vrf>
            </instance-active>
          </instance>
        </instances>
      </bgp>
    </filter>
  </get>
</rpc>