Solved: Issue with delete in YDK

sihart · ‎10-08-2017

Hi,

I am running some scripts against the NETCONF-YANG and RESTCONF sandbox, and appear to be having a problem with deleting configuration. Instantiating a crud object with crud = CrudService() is fine, and works with crud.create(provider, native), however if I try crud.delete(provider, native) I recieve a bad cli error. To check the payload being sent I also have the CodecService instantiated and printing out the XML.

Here is the XML from CodecService

<description>CONNECTS TO R1 (gigabitethernet3)</description>

<load-interval>30</load-interval>

<ip>

</primary>

</address>

</ip>

</GigabitEthernet>

</interface>

</native>

And here is the error being returned when attempting crud.delete

ydk.errors.YPYServiceProviderError: <?xml version="1.0" encoding="UTF-8"?>

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1">

<rpc-error>

<error-type>application</error-type>

<error-tag>invalid-value</error-tag>

<error-severity>error</error-severity>

<error-message xml:lang="en">inconsistent value: Device refused one or more commands</error-message>

<error-info>

<severity xmlns="http://cisco.com/yang/cisco-ia">error_cli</severity>

<bad-cli>

<bad-command>no redundancy</bad-command>

<error-location>6</error-location>

</bad-cli>

</detail>

</error-info>

I get the same error with crud.delete, irrespective of the configuration generated.

Attached is a copy of the script

I am using the YDK 0.6.0 and have imported the native XE models.

Any advice appreciated

Simon

einarnn · ‎10-09-2017

Simon,

Apologies for taking so long to get back to you. I've got a working sample for you to use as a template. The code below will delete the primary and secondary addresses off of an interface, and you should be able to adapt it to other scenarios fairly easily:

#! /usr/bin/env python3

__author__ = 'einarnn'

'''

Working with YDK 0.6.1, XE models against IOS-XE

'''

from ydk.services import CRUDService

from ydk.providers import NetconfServiceProvider

from ydk.filters import YFilter

from ydk.models.cisco_ios_xe import Cisco_IOS_XE_native as xe

import logging

if __name__=='__main__':

logger = logging.getLogger("ydk")

logger.setLevel(logging.INFO)

handler = logging.StreamHandler()

formatter = logging.Formatter(("%(asctime)s - %(name)s - "

"%(levelname)s - %(message)s"))

handler.setFormatter(formatter)

logger.addHandler(handler)

crud = CRUDService()

# set up the thing we want to delete

del_native = xe.Native()

del_intf = xe.Native.Interface.GigabitEthernet()

del_intf.name = "4"

del_intf.ip.address.primary.yfilter = YFilter.remove

del_native.interface.gigabitethernet.append(del_intf)

# connect to the device

provider = NetconfServiceProvider(address='172.16.20.1',

port=2223,

username='vagrant',

password='vagrant',

protocol='ssh')

crud.update(provider, del_native)

And here's a sample log from running the test now:

$ python basic.py

2017-10-09 22:17:11,752 - ydk - INFO - Path where models are to be downloaded: /home/cisco/.ydk/172.16.20.1:2223

2017-10-09 22:17:11,758 - ydk - INFO - Connected to 172.16.20.1 on port 2223 using ssh with timeout of -1

2017-10-09 22:17:11,758 - ydk - INFO - Executing CRUD update operation

2017-10-09 22:17:11,868 - ydk - ERROR - Libyang ERROR: Schema node not found. Path: 'address'

2017-10-09 22:17:11,869 - ydk - ERROR - Libyang ERROR: Schema node not found. Path: 'primary'

2017-10-09 22:17:11,905 - ydk - INFO - =============Generating payload to send to device=============

2017-10-09 22:17:11,906 - ydk - INFO - <rpc xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"><edit-config xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">

</target>

<error-option>rollback-on-error</error-option>

<ip>

</address>

</ip>

</GigabitEthernet>

</interface>

</native>

</config>

</edit-config>

</rpc>

2017-10-09 22:17:11,906 - ydk - INFO -

2017-10-09 22:17:11,914 - ydk - INFO - =============Reply payload received from device=============

2017-10-09 22:17:11,915 - ydk - INFO - <?xml version="1.0" encoding="UTF-8"?>

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1">

<ok/>

</rpc-reply>

2017-10-09 22:17:11,915 - ydk - INFO -

2017-10-09 22:17:11,915 - ydk - INFO - Operation succeeded

2017-10-09 22:17:11,915 - ydk - INFO - Disconnected from device

Hope this helps!!

Cheers,

Einar

View solution in original post

einarnn · ‎10-08-2017

Simon,

What are you tying to delete? You can’t delete GigabitEthernet2, for example, and the error you see below is one which you would get if that’s what you’re trying to do.

Can you enable the YDK debuts that show what is getting sent to the device? And also post a copy of the code you are using?

Cheers,

Einar

sihart · ‎10-08-2017

Hi Einar,

The script is attached to the original post.

I do not want to delete GigabitEthernet 2, more the configuration assigned to it (ip address, description, mtu etc.)

Lastly, how do I enable YDK debuts?

Thanks

einarnn · ‎10-08-2017

Ahh, made the mistake of not looking at the actual port!

See here for how to enable YDK debuts:

https://github.com/CiscoDevNet/ydk-py-samples/blob/master/samples/basic/crud/models/cisco-ios-xe/Cisco-IOS-XE-native/native/router/ospf/nc-create-xe-native-router-ospf-20-ydk.py#L69

Cheers,

Einar

sihart · ‎10-08-2017

Debug, not debuts

The debug for crud.create and crud.delete below. Can you advise how would I delete just ip address and mask?

2017-10-08 22:17:19,924 - ydk - INFO - Executing CRUD create operation

2017-10-08 22:17:20,032 - ydk - ERROR - Libyang ERROR: Schema node not found. Path: 'address'

2017-10-08 22:17:20,032 - ydk - ERROR - Libyang ERROR: Schema node not found. Path: 'primary'

2017-10-08 22:17:20,065 - ydk - INFO - =============Generating payload to send to device=============

2017-10-08 22:17:20,065 - ydk - INFO - <rpc xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"><edit-config xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">

</target>

<error-option>rollback-on-error</error-option>

<description>CONNECTS TO R1 (gigabitethernet3)</description>

<load-interval>30</load-interval>

<ip>

</primary>

</address>

</ip>

</GigabitEthernet>

</interface>

</native>

</config>

</edit-config>

</rpc>

2017-10-08 22:17:20,065 - ydk - INFO -

2017-10-08 22:17:20,480 - ydk - INFO - =============Reply payload received from device=============

2017-10-08 22:17:20,481 - ydk - INFO - <?xml version="1.0" encoding="UTF-8"?>

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1">

<ok/>

</rpc-reply>

2017-10-08 22:17:20,481 - ydk - INFO -

2017-10-08 22:17:20,481 - ydk - INFO - Operation succeeded

2017-10-08 22:17:20,481 - ydk - INFO - Disconnected from device

And here is the debug for crud.delete

2017-10-08 22:20:19,042 - ydk - INFO - Executing CRUD delete operation

2017-10-08 22:20:19,151 - ydk - ERROR - Libyang ERROR: Schema node not found. Path: 'address'

2017-10-08 22:20:19,151 - ydk - ERROR - Libyang ERROR: Schema node not found. Path: 'primary'

2017-10-08 22:20:19,183 - ydk - INFO - =============Generating payload to send to device=============

2017-10-08 22:20:19,183 - ydk - INFO - <rpc xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"><edit-config xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">

</target>

<error-option>rollback-on-error</error-option>

<description>CONNECTS TO R1 (gigabitethernet3)</description>

<load-interval>30</load-interval>

<ip>

</primary>

</address>

</ip>

</GigabitEthernet>

</interface>

</native>

</config>

</edit-config>

</rpc>

2017-10-08 22:20:19,183 - ydk - INFO -

2017-10-08 22:20:27,698 - ydk - INFO - =============Reply payload received from device=============

2017-10-08 22:20:27,698 - ydk - INFO - <?xml version="1.0" encoding="UTF-8"?>

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1">

<rpc-error>

<error-type>application</error-type>

<error-tag>invalid-value</error-tag>

<error-severity>error</error-severity>

<error-message xml:lang="en">inconsistent value: Device refused one or more commands</error-message>

<error-info>

<severity xmlns="http://cisco.com/yang/cisco-ia">error_cli</severity>

<bad-cli>

<bad-command>no redundancy</bad-command>

<error-location>6</error-location>

</bad-cli>

</detail>

</error-info>

</rpc-error>

</rpc-reply>

2017-10-08 22:20:27,698 - ydk - INFO -

2017-10-08 22:20:27,698 - ydk - ERROR - No ok in reply received from device

Traceback (most recent call last):

File "/Users/sihart/PycharmProjects/ydk_6_0/acl_lists_loop.py", line 88, in <module>

crud.delete(provider, native)

File "/Users/sihart/mycode/ydk_py/venv/lib/python3.6/site-packages/ydk/errors/error_handler.py", line 112, in helper

return func(self, provider, entity, *args, **kwargs)

File "/Users/sihart/mycode/ydk_py/venv/lib/python3.6/site-packages/ydk/services/crud_service.py", line 50, in delete

return self._crud.delete(provider, entity)

File "/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/contextlib.py", line 99, in __exit__

self.gen.throw(type, value, traceback)

File "/Users/sihart/mycode/ydk_py/venv/lib/python3.6/site-packages/ydk/errors/error_handler.py", line 82, in handle_runtime_error

_raise(_exc)

File "/Users/sihart/mycode/ydk_py/venv/lib/python3.6/site-packages/ydk/errors/error_handler.py", line 54, in _raise

exec("raise exc from None")

File "<string>", line 1, in <module>

ydk.errors.YPYServiceProviderError: <?xml version="1.0" encoding="UTF-8"?>

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1">

<rpc-error>

<error-type>application</error-type>

<error-tag>invalid-value</error-tag>

<error-severity>error</error-severity>

<error-message xml:lang="en">inconsistent value: Device refused one or more commands</error-message>

<error-info>

<severity xmlns="http://cisco.com/yang/cisco-ia">error_cli</severity>

<bad-cli>

<bad-command>no redundancy</bad-command>

<error-location>6</error-location>

</bad-cli>

</detail>

</error-info>

</rpc-error>

</rpc-reply>

2017-10-08 22:20:28,061 - ydk - INFO - Disconnected from device

libc++abi.dylib: terminating with uncaught exception of type pybind11::error_already_set: NameError: name 'open' is not defined

At:

/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/logging/__init__.py(1059): _open

/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/logging/__init__.py(1069): emit

/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/logging/__init__.py(865): handle

/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/logging/__init__.py(1514): callHandlers

/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/logging/__init__.py(1452): handle

/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/logging/__init__.py(1442): _log

/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/logging/__init__.py(1306): info

sihart · ‎10-09-2017

To test this further I have tried deletion of a created access - LoACL. I am receiving a similar error when invoking and sending crud.delete, e.g. <bad-cli><bad-command>no redundancy</bad-command>

The script and logging posted below

from ydk.services import CRUDService

from ydk.providers import NetconfServiceProvider

from ydk.providers import CodecServiceProvider

from ydk.services.codec_service import CodecService

from ydk.models.cisco_ios_xe import Cisco_IOS_XE_native \

as xe_native

from ydk.types import Empty

import logging

provider = NetconfServiceProvider(address='',

port=830,

username='root',

password='',

protocol='ssh')

empty =Empty()

codec = CodecService()

crud = CRUDService()

codec_provider = CodecServiceProvider(type='xml')

def config_native(native):

standard = native.ip.access_list.Standard()

standard.name = 'LoACL'
native.ip.access_list.standard.append(standard)

logger = logging.getLogger("ydk")

logging.basicConfig(filename='access.log',level=logging.DEBUG)

logger.setLevel(logging.INFO)

handler = logging.StreamHandler()

formatter = logging.Formatter(("%(asctime)s - %(name)s - "
"%(levelname)s - %(message)s"))

handler.setFormatter(formatter)

logger.addHandler(handler)

native = xe_native.Native()# create object
config_native(native) # Call configuration function using object

crud.delete(provider, native)

Logging information below

2017-10-09 14:13:31,162 - ydk - INFO - Executing CRUD delete operation

<ip>

<access-list>

<name>LoACL</name>

</standard>

</access-list>

</ip>

</native>

2017-10-09 14:13:31,386 - ydk - INFO - =============Generating payload to send to device=============

2017-10-09 14:13:31,386 - ydk - INFO - <rpc xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"><edit-config xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">

</target>

<error-option>rollback-on-error</error-option>

<ip>

<access-list>

<name>LoACL</name>

</standard>

</access-list>

</ip>

</native>

</config>

</edit-config>

</rpc>

2017-10-09 14:13:31,386 - ydk - INFO -

2017-10-09 14:13:39,698 - ydk - INFO - =============Reply payload received from device=============

2017-10-09 14:13:39,698 - ydk - INFO - <?xml version="1.0" encoding="UTF-8"?>

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1">

<rpc-error>

<error-type>application</error-type>

<error-tag>invalid-value</error-tag>

<error-severity>error</error-severity>

<error-message xml:lang="en">inconsistent value: Device refused one or more commands</error-message>

<error-info>

<severity xmlns="http://cisco.com/yang/cisco-ia">error_cli</severity>

<bad-cli>

<bad-command>no redundancy</bad-command>

<error-location>6</error-location>

</bad-cli>

</detail>

</error-info>

</rpc-error>

</rpc-reply>

2017-10-09 14:13:39,698 - ydk - INFO -

2017-10-09 14:13:39,698 - ydk - ERROR - No ok in reply received from device

Traceback (most recent call last):

File "/Users/sihart/PycharmProjects/ydk_6_0/acl_lists_loop.py", line 110, in <module>

crud.delete(provider, native)

File "/Users/sihart/mycode/ydk_py/venv/lib/python3.6/site-packages/ydk/errors/error_handler.py", line 112, in helper

return func(self, provider, entity, *args, **kwargs)

File "/Users/sihart/mycode/ydk_py/venv/lib/python3.6/site-packages/ydk/services/crud_service.py", line 50, in delete

return self._crud.delete(provider, entity)

File "/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/contextlib.py", line 99, in __exit__

self.gen.throw(type, value, traceback)

File "/Users/sihart/mycode/ydk_py/venv/lib/python3.6/site-packages/ydk/errors/error_handler.py", line 82, in handle_runtime_error

_raise(_exc)

File "/Users/sihart/mycode/ydk_py/venv/lib/python3.6/site-packages/ydk/errors/error_handler.py", line 54, in _raise

exec("raise exc from None")

File "<string>", line 1, in <module>

ydk.errors.YPYServiceProviderError: <?xml version="1.0" encoding="UTF-8"?>

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1">

<rpc-error>

<error-type>application</error-type>

<error-tag>invalid-value</error-tag>

<error-severity>error</error-severity>

<error-message xml:lang="en">inconsistent value: Device refused one or more commands</error-message>

<error-info>

<severity xmlns="http://cisco.com/yang/cisco-ia">error_cli</severity>

<bad-cli>

<bad-command>no redundancy</bad-command>

<error-location>6</error-location>

</bad-cli>

</detail>

</error-info>

</rpc-error>

</rpc-reply>

einarnn · ‎10-09-2017

Simon,

Apologies for taking so long to get back to you. I've got a working sample for you to use as a template. The code below will delete the primary and secondary addresses off of an interface, and you should be able to adapt it to other scenarios fairly easily:

#! /usr/bin/env python3

__author__ = 'einarnn'

'''

Working with YDK 0.6.1, XE models against IOS-XE

'''

from ydk.services import CRUDService

from ydk.providers import NetconfServiceProvider

from ydk.filters import YFilter

from ydk.models.cisco_ios_xe import Cisco_IOS_XE_native as xe

import logging

if __name__=='__main__':

logger = logging.getLogger("ydk")

logger.setLevel(logging.INFO)

handler = logging.StreamHandler()

formatter = logging.Formatter(("%(asctime)s - %(name)s - "

"%(levelname)s - %(message)s"))

handler.setFormatter(formatter)

logger.addHandler(handler)

crud = CRUDService()

# set up the thing we want to delete

del_native = xe.Native()

del_intf = xe.Native.Interface.GigabitEthernet()

del_intf.name = "4"

del_intf.ip.address.primary.yfilter = YFilter.remove

del_native.interface.gigabitethernet.append(del_intf)

# connect to the device

provider = NetconfServiceProvider(address='172.16.20.1',

port=2223,

username='vagrant',

password='vagrant',

protocol='ssh')

crud.update(provider, del_native)

And here's a sample log from running the test now:

$ python basic.py

2017-10-09 22:17:11,752 - ydk - INFO - Path where models are to be downloaded: /home/cisco/.ydk/172.16.20.1:2223

2017-10-09 22:17:11,758 - ydk - INFO - Connected to 172.16.20.1 on port 2223 using ssh with timeout of -1

2017-10-09 22:17:11,758 - ydk - INFO - Executing CRUD update operation

2017-10-09 22:17:11,868 - ydk - ERROR - Libyang ERROR: Schema node not found. Path: 'address'

2017-10-09 22:17:11,869 - ydk - ERROR - Libyang ERROR: Schema node not found. Path: 'primary'

2017-10-09 22:17:11,905 - ydk - INFO - =============Generating payload to send to device=============

2017-10-09 22:17:11,906 - ydk - INFO - <rpc xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"><edit-config xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">

</target>

<error-option>rollback-on-error</error-option>

<ip>

</address>

</ip>

</GigabitEthernet>

</interface>

</native>

</config>

</edit-config>

</rpc>

2017-10-09 22:17:11,906 - ydk - INFO -

2017-10-09 22:17:11,914 - ydk - INFO - =============Reply payload received from device=============

2017-10-09 22:17:11,915 - ydk - INFO - <?xml version="1.0" encoding="UTF-8"?>

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1">

<ok/>

</rpc-reply>

2017-10-09 22:17:11,915 - ydk - INFO -

2017-10-09 22:17:11,915 - ydk - INFO - Operation succeeded

2017-10-09 22:17:11,915 - ydk - INFO - Disconnected from device

Hope this helps!!

Cheers,

Einar