no passive-interface <interface name> OSPF

[bjronmork]

Hi Expert,

I need your support; I am facing issue in generating "no passive-interface <interface name>" under the OSPF configuration.

NSO is able to generate below configurations XML code..

        <router xmlns="urn:ios">
          <ospf>
            <id>{process-id}</id>
            <vrf>{vrf-name)}</vrf>
            <passive-interface>
              <default />
             <interface tags="delete">
                <name>BDI{string(../vlan-id)}</name>
              </interface>
            </passive-interface>
            <redistribute>
              <connected>
                <subnets />
              </connected>
              <static>
                <subnets />
              </static>
              <bgp>
                <as-no>{bgp-as}</as-no>
                <metric-type>1</metric-type>
                <subnets />
              </bgp>
            </redistribute>
            <network>
              <ip>{ce-network}</ip>
              <mask>{ce-mask}</mask>
              <area>{area}</area>
            </network>
          </ospf>
        </router>
---------------------------------------
router ospf 7600 vrf VRF:IOSXE:9281:VRF
no log-adjacency-changes
passive-interface default
redistribute connected subnets
redistribute static subnets
redistribute bgp 5000 metric-type 1 subnets
network 18.18.18.0 0.0.0.3 area 2376
exit 

Target is to achieve below command set

router ospf 7600 vrf IOSXE:VRF
 no log-adjacency-changes
 no passive-interface BDI1234 (Required Command)
 passive-interface default
 redistribute connected subnets
 redistribute static subnets
 redistribute bgp 5000 metric-type 1 subnets
 network 18.18.18.0 0.0.0.3 area 2376
exit 

Please suggest. Thanks

[KJ Rossavik]

Are you using the latest NED version? If you are, and the command is missing, then you can request it

NSO and NED support process

[bjronmork]

Below is the version details;

admin@ncs# show packages package cisco-ios
packages package cisco-ios
package-version 6.15.1
description "NED package for the Cisco IOS"
ncs-min-version [ 3.4.11 4.2.2 4.3.0.2 4.4.2 ]

I have upgraded version to below version but still unable to get the required command.

admin@ncs# show packages package cisco-ios
packages package cisco-ios
 package-version 6.20.2
 description     "NED package for the Cisco IOS"
 ncs-min-version [ 4.2.2 4.3.0.2 4.4.5 4.5.2 ]

Is there any change required in XML tags or any thing? please suggest.

Regards,

[KJ Rossavik]

did you check if you can set this via the NSO CLI? I.e. do you know if the feature is supported by the NED? If not then you need to request a NED enhancement.

[lmanor · Accepted solution]

Hello,

In the NED YANG Model - tailf-ned-cisco-ios.yang, You'll find special modeling to handle this in 'grouping passive-interface-grouping':

// Fix to handle showing "no passive-interface <ifname>"
// Replace 'disable passive-interface <ifname> with
// "no passive-interface <ifname>"
container disable {
tailf:info "Use with 'disable passive-interface' for 'no passive-interface' config";
when "../passive-interface/default" {
tailf:dependency "../passive-interface/default";
}
tailf:cli-diff-dependency "../passive-interface/default";
list passive-interface {
tailf:cli-suppress-mode;
tailf:cli-delete-when-empty;
tailf:cli-compact-syntax;
key interface;
leaf interface {
tailf:cli-multi-word-key;
tailf:cli-diff-dependency "/ios:interface";
type string {
tailf:info "WORD;;Interface name";
}
}
}
}

as you can see there is a dependency on the passive-interface/default, so configuration would be something like this:

[edit]
admin@ncs% set devices device ios0 config ios:router ospf 1 passive-interface default
[ok][2019-07-11 11:34:43]

[edit]
admin@ncs% set devices device ios0 config ios:router ospf 1 disable passive-interface BDI1234
[ok][2019-07-11 11:34:51]

admin@ncs% show devices device ios0 config ios:router ospf 1 | display xml
<config xmlns="http://tail-f.com/ns/config/1.0">
<devices xmlns="http://tail-f.com/ns/ncs">
<device>
<name>ios0</name>
<config>
<router xmlns="urn:ios">
<ospf>
<id>1</id>
<passive-interface>
<default/>
</passive-interface>
<disable>
<passive-interface>
<interface>BDI1234</interface>
</passive-interface>
</disable>
</ospf>
</router>
</config>
</device>
</devices>
</config>

The 'disable' should get translated to 'no passive interface' on config generation to device:

From IOSNedCLU.java:

            //

            // disable passive-interface

            //

            else if (line.contains("no disable passive-interface ")) {

                output = line.replace("no disable passive-interface ", "passive-interface ");

            }

            else if (line.contains("disable passive-interface ")) {

                output = line.replace("disable passive-interface ", "no passive-interface ");

            }

This is from cisco-ios NED revision 6.24: