Unable to push configuration using NETCONF, YANG with XML

rdhavade — Mon, 18 Feb 2019 12:21:55 GMT

I'm trying to push a simple configuration of shutting down an interface on IOS XR 6.2.2 using YANG model xmlns="http://cisco.com/ns/yang/Cisco-IOS-XR-ifmgr-cfg.

Tried a lot with different options but unable to identify the reason why it isn't working. No luck in reading across many blogs/websites as well.

XML rpc-request data:

after sending above to IOS-XR node, the rpc-reply comes back as-

OrderedDict([('rpc-reply', OrderedDict([('@message-id', 'urn:uuid:19d93944-b71d-471b-a3e1-a8fbe09fde2c'), ('@xmlns:nc', 'urn:ietf:params:xml:ns:netconf:base:1.0'), ('@xmlns', 'urn:ietf:params:xml:ns:netconf:base:1.0'), ('ok', None)]))])

In the IOS XR debugs I see below:

RP/0/RSP0/CPU0:Feb 18 12:10:29.281 : netconf[1126]: TRC: NC: Hello message validation success
RP/0/RSP0/CPU0:Feb 18 12:10:30.660 : netconf_sshd_proxy[65798]: TRC: NC: SSH PIPE INPUT cond: 0x1, fd 26, ctx 420ab80
RP/0/RSP0/CPU0:Feb 18 12:10:30.660 : netconf_sshd_proxy[65798]: TRC: NC: CLIENT read: 513
RP/0/RSP0/CPU0:Feb 18 12:10:30.660 : netconf_sshd_proxy[65798]: TRC: NC: CLIENT->SERVER 513
RP/0/RSP0/CPU0:Feb 18 12:10:30.660 : netconf[1126]: TRC: NC: EOM received, data len: 503
RP/0/RSP0/CPU0:Feb 18 12:10:30.660 : netconf[1126]: DBG: NC: Trying to process RPC message internally
RP/0/RSP0/CPU0:Feb 18 12:10:30.660 : netconf[1126]: DBG: NC: Operation <edit-config> will be handled in normal parsing
RP/0/RSP0/CPU0:Feb 18 12:10:30.661 : netconf[1126]: TRC: NC: adding http://cisco.com/ns/yang/Cisco-IOS-XR-ifmgr-cfg to namespace hashmap
RP/0/RSP0/CPU0:Feb 18 12:10:30.661 : netconf[1126]: TRC: NC: Tag <active> data len: 3
RP/0/RSP0/CPU0:Feb 18 12:10:30.661 : netconf[1126]: TRC: NC: Element <active> is not outer-most element under <filter>, state is unchanged.
RP/0/RSP0/CPU0:Feb 18 12:10:30.661 : netconf[1126]: TRC: NC: Tag <interface-name> data len: 18
RP/0/RSP0/CPU0:Feb 18 12:10:30.661 : netconf[1126]: TRC: NC: Element <interface-name> is not outer-most element under <filter>, state is unchanged.
RP/0/RSP0/CPU0:Feb 18 12:10:30.661 : netconf[1126]: TRC: NC: Element <shutdown> is not outer-most element under <filter>, state is unchanged.
RP/0/RSP0/CPU0:Feb 18 12:10:30.661 : netconf[1126]: TRC: NC: Element <interface-configuration> is not outer-most element under <filter>, state is unchanged.
RP/0/RSP0/CPU0:Feb 18 12:10:30.661 : netconf[1126]: TRC: NC: Element <interface-configurations> is not outer-most element under <filter>, state is unchanged.
RP/0/RSP0/CPU0:Feb 18 12:10:30.661 : netconf[1126]: TRC: NC: Parsed the incoming message

The python code to do this is -

import os
import sys
import xmltodict
from ncclient import manager
from pprint import pprint

m = manager.connect(host = '172.18.120.144', username = 'root', password = 'root', hostkey_verify = False, port = 830)

print('NETCONF session is connected : '+ str(m.connected))

config_interface = """
<config>
<interface-configurations xmlns="http://cisco.com/ns/yang/Cisco-IOS-XR-ifmgr-cfg">
<interface-configuration>
<active>act</active>
<interface-name>TenGigE10633/0/0/1</interface-name>
<shutdown/>
</interface-configuration>
</interface-configurations>
</config>
"""
rpc_reply = m.edit_config(config_interface, target = 'candidate')
output_dictn = xmltodict.parse(rpc_reply.xml)
print(output_dictn)
m.close_session()
print('NETCONF session status : ' + str(m.connected))

rpc-reply is coming ok, but configuration is not getting applied on the router.
Can someone please guide as to what can be wrong here ?.

Just to give a glimpse of the YANG model-

module: Cisco-IOS-XR-ifmgr-cfg
+--rw global-interface-configuration
| +--rw link-status?   Link-status-enum
+--rw interface-configurations
     +--rw interface-configuration* [active interface-name]
        +--rw dampening
        | +--rw args?                 enumeration
        | +--rw half-life?            uint32
        | +--rw reuse-threshold?      uint32
        | +--rw suppress-threshold?   uint32
        | +--rw suppress-time?        uint32
        | +--rw restart-penalty?      uint32
        +--rw mtus
        | +--rw mtu* [owner]
        |     +--rw owner    xr:Cisco-ios-xr-string
        |     +--rw mtu      uint32
        +--rw encapsulation
        | +--rw encapsulation?         string
        | +--rw capsulation-options?   int32
        +--rw shutdown?                      empty
        +--rw interface-virtual?             empty
        +--rw secondary-admin-state?         Secondary-admin-state-enum
        +--rw interface-mode-non-physical?   Interface-mode-enum
        +--rw bandwidth?                     uint32
        +--rw link-status?                   empty
        +--rw description?                   string
        +--rw active                         Interface-active
        +--rw interface-name                 xr:Interface-name

Re: Unable to push configuration using NETCONF, YANG with XML

rdhavade — Wed, 20 Feb 2019 07:40:52 GMT

rpc-reply is coming ok, but configuration is not getting applied on the router.
Can someone please guide as to what can be wrong here ?.

Re: Unable to push configuration using NETCONF, YANG with XML

rdhavade — Tue, 05 Mar 2019 08:34:57 GMT

Finally got the solution to the issue.

In the end of the code I shared, after using the "edit_config" method for instance of class "manager", we have to call "commit" function using the instance of class "manager".

i.e.:

m = manager.connect(host = '172.18.120.144', username = 'root', password = 'root', hostkey_verify = False, port = 830)

m.edit_config(config-loopback, target = candidate)

m.commit()

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Unable to push configuration using NETCONF, YANG with XML

Re: Unable to push configuration using NETCONF, YANG with XML

Re: Unable to push configuration using NETCONF, YANG with XML