removing configuration with ncclient

[Ugur Ersoy]

hello guys,

somehow I couldn't figure out the way to remove existing configuration with netconf. I created xml template based on yang file static for xr 6.5.3 as follows:

sr_config  = '''
<config>
  <router-static xmlns="http://cisco.com/ns/yang/Cisco-IOS-XR-ip-static-cfg">
    <default-vrf>
      <address-family>
        <vrfipv4>
          <vrf-unicast>
            <vrf-prefixes>
              <vrf-prefix>
                <prefix>13.13.13.13</prefix>
                <prefix-length>32</prefix-length>
                <vrf-route>
                  <vrf-next-hop-table>
                    <vrf-next-hop-interface-name>
                      <interface-name>Null0</interface-name>
                      <tag>710</tag>
                      <description>test_netconf</description>
                    </vrf-next-hop-interface-name>
                  </vrf-next-hop-table>
                </vrf-route>
	      </vrf-prefix>
	     </vrf-prefixes>
          </vrf-unicast>
        </vrfipv4>
      </address-family>
    </default-vrf>
  </router-static>
 </config>
 '''

device_h.edit_config(target="candidate", config=sr_config)

I can filter it out too, but how I am supposed to delete this config? 

[Johnny Karms Pedersen]

Hi Ugur,

Basically all you need is to add the XML namespace to the config tag and a delete operation on the 'vrf-prefix' element in addition to leafs identifying the particular route object to be deleted:

sr_config = '''<config xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0">
                 <router-static xmlns="http://cisco.com/ns/yang/Cisco-IOS-XR-ip-static-cfg">
                   <default-vrf>
                     <address-family>
                       <vrfipv4>
                         <vrf-unicast>
                           <vrf-prefixes>
                             <vrf-prefix nc:operation="delete">
                               <prefix>13.13.13.13</prefix>
                               <prefix-length>32</prefix-length>
                             </vrf-prefix>
                           </vrf-prefixes>
                         </vrf-unicast>
                       </vrfipv4>
                     </address-family>
                   </default-vrf>
                 </router-static>
              </config>'''
resp = device_h.edit_config(target="candidate", config=sr_config)
print(resp)
device_h.commit()

- Johnny