Enabling Segment Routing (SR) for OSPFv2

[jardel-lucca-venko]

Hi,

We can enable SR for IS-IS with:

.../network-instance/protocols/protocol/isis/global/segment-routing/config/enabled

This segment-routing container is defined in openconfig-segment-routing.yang ("oc-sr") sr-igp-top grouping.

It was added in commit 55573d7 (openconfig-isis.yang):

   grouping isis-global-base {
     description
       "This grouping describes ISIS Global router.";

     ...
+
+    uses oc-sr:sr-igp-top;
   }

However, it would be useful to have this for OSPFv2 as well.

I believe we could similarly include sr-igp-top in .../protocol/ospfv2/global container (openconfig-ospfv2-global.yang):

   grouping ospfv2-global-structural {
     description
       "Top level structural grouping for OSPFv2 global parameters";
             
     container global {
       description
         "Configuration and operational state parameters for settings
         that are global to the OSPFv2 instance";
               
       ...
+
+      uses oc-sr:sr-igp-top;
     }     
   }

Would such inclusion be acceptable?

Thanks.
Jardel Lucca

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[dplore]

Hi @jardel-lucca-venko, if you intend to use ospf with segment routing and are willing to create a PR with the yang model, find the implementation references confirming the support and a good reviewer with some OSPF/SR experience we would welcome the contribution!

I am not familiar with OSPF support for SR to know if your proposal is valid, but from a distance it sounds like a good approach. If you can provide sufficiently detailed implementation references/documentation I think you could demonstrate in a PR that what's being added is in fact supported by at least 2 implementations. Then the review has a good chance of going smoothly.