Hi,
I'm augmenting the ietf-network and ietf-network-topology from RFC 8345,
trying to add geolocation information to the network nodes. I found your
draft (thanks for it!), draft-ietf-netmod-geo-location-01. What I am
struggling with is adding the geolocation as an *optional* element.
When I try this YANG construct:
augment "/nw:networks/nw:network/nw:node" {
when "../nw:network-types/my-topo:topology-type";
description "Optical elements within a network";
uses geo:geo-location;
}
....then my YANG instance data validator, libyang, complains when the
location is missing:
err : Mandatory choice "location" missing a case branch.
(/ietf-network:networks/network[network-id='...']/node[node-id='...']/my-topo:location/geo-location)
I can do the augmentation with one more container (a presence one) like
this:
augment "/nw:networks/nw:network/nw:node" {
when "../nw:network-types/my-topo:topology-type";
description "Optical elements within a network";
container location {
presence true;
uses geo:geo-location;
}
}
The resulting data then contain an extra level of nesting. I think that
this is suboptimal.
I have two questions:
- Is that perhaps a bug in libyang?
- If libyang is correct, is there a way of making the location info
optional without that one more level of nesting?
Also, the example does not work as-is because it's importing the module
using a wrong name. Here's a tiny patch:
index 7bd8622c..088621a1 100644
---
a/experimental/ietf-extracted-YANG-modules/[email protected]
+++
b/experimental/ietf-extracted-YANG-modules/[email protected]
@@ -2,7 +2,7 @@ module ietf-uses-geo-location {
namespace
"urn:ietf:params:xml:ns:yang:ietf-uses-geo-location";
prefix ugeo;
- import geo-location { prefix geo; }
+ import ietf-geo-location { prefix geo; }
organization "Empty Org";
contact "Example Author <[email protected]>";
description "Example use of geo-location";
The -00 version was correct in this, BTW.
With kind regards,
Jan
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