Cisco IOS XE| ncclient.operations.rpc.RPCError:'tag': 'unknown-element

[amandes4]

Hello Everyone,

I am doing a simple config push to Cisco Sandbox and hitting an issue. Any help to know what's wrong is very appreciated.

from ncclient import manager
import xmltodict
if __name__ == '__main__':

    ios_xe={'address' : 'sandbox-iosxe-latest-1.cisco.com' , 'port' : '830' , 'username' : 'developer' , 'password': 'C1sco12345' }
   
    netconf_filter=open('filterconfigusername-iosxe.xml').read()
    print(netconf_filter)

    with manager.connect(host=ios_xe['address'], port=ios_xe['port'],
                            username=ios_xe['username'],
                            password=ios_xe['password'],
                            hostkey_verify=False, look_for_keys=False) as m:

        result = m.edit_config(target = 'running' ,  config =netconf_filter)
        print(result)
        reply = m.commit()
        print(reply)

Execution of it fails as below:

 /usr/local/bin/python3 /Users/amandes4/Documents/Python/Devnet-Study/NetConf/NetConf-IOS-XE/5.edit_user_config.py
!!!!!This is the Configuration push!!!!!!
<config>
  <native xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-native">
    <username>
                <name>restconf</name>
                <privilege>15</privilege>
                <secret>
                        <encryption>0</encryption>
                        <secret>restconf</secret>
                </secret>
    </username>
  </native>
</config>

Traceback (most recent call last):
  File "/Users/user/Documents/Python/NetConf/NetConf-IOS-XE/5.edit_user_config.py", line 18, in <module>
    result = m.edit_config(target = 'running' ,  config =netconf_filter)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/ncclient/manager.py", line 226, in execute
    return cls(self._session,
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/ncclient/operations/edit.py", line 69, in request
    return self._request(node)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/ncclient/operations/rpc.py", line 360, in _request
    raise self._reply.error
ncclient.operations.rpc.RPCError: {'type': 'protocol', 'tag': 'unknown-element', 'app_tag': None, 'severity': 'error', 'info': '<?xml version="1.0" encoding="UTF-8"?><error-info xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0"><bad-element>config</bad-element>\n</error-info>\n', 'path': '\n    /rpc/edit-config\n  ', 'message': None}

Could be due to some code changes that also affect 'edit-config' operation like 'get-config' operation discussed in "https://community.cisco.com/t5/yang-tools/netconf-error-in-ios-xe-on-csr-latest-code-always-on-devnet/m-p/4451438"

csr1000v-1#show version

Cisco IOS XE Software, Version 17.03.01a

Regards

Aman

[Alex Stevenson]

Hi @amandes4,

I would try reformatting the code based on the examples on page 26, 49 and 51 of Introduction to Model Driven Programmability:  Breaking down YANG, NETCONF, and RESTCONF.

Best,

      Alex S.

[abduljwad.higaig]

Hi @amandes4 ,

the problem you are facing is at the tag <config>, so you suhld replace it with <config xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">

The new XML should be :

<config xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
  <native xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-native">
    <username>
                <name>restconf</name>
                <privilege>15</privilege>
                <secret>
                        <encryption>0</encryption>
                        <secret>restconf</secret>
                </secret>
    </username>
  </native>
</config>

This should solve your problem, also keep in mind different IOS XE Software, Version has different YANG structures

Best of luck