Commit b0ff506fc7 for frr

commit b0ff506fc773010cdcb9849fea0f21c08766872f
Author: Carmine Scarpitta <cscarpit@cisco.com>
Date:   Thu Sep 3 11:54:37 2026 +0200

    tests: Verify advertised uN and uA SID structures

    Check the SRv6 SID structures decoded from the IS-IS database.

    Verify that uN and uA SIDs advertise the expected locator, node,
    function, and argument lengths.

    Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>

diff --git a/tests/topotests/isis_srv6_topo1/rt2/step1/show_isis_database_detail.ref b/tests/topotests/isis_srv6_topo1/rt2/step1/show_isis_database_detail.ref
index 98b7d94ced..87011ada85 100644
--- a/tests/topotests/isis_srv6_topo1/rt2/step1/show_isis_database_detail.ref
+++ b/tests/topotests/isis_srv6_topo1/rt2/step1/show_isis_database_detail.ref
@@ -10,10 +10,33 @@
                 "subtlvs":{
                   "srv6EndSid":{
                     "sidValue":"fc00:0:1::",
-                    "endpointBehavior":"uN PSP"
+                    "endpointBehavior":"uN PSP",
+                    "subsubtlvs":{
+                      "srv6SidStructure":{
+                        "locBlockLen":32,
+                        "locNodeLen":16,
+                        "funcLen":0,
+                        "argLen":0
+                      }
+                    }
                   }
                 }
-              }
+              },
+              "extReach":[
+                {
+                  "srv6LanEndxSID":[
+                    {
+                      "behavior":"uA",
+                      "srv6SidStructure":{
+                        "locBlockLen":32,
+                        "locNodeLen":16,
+                        "funcLen":16,
+                        "argLen":0
+                      }
+                    }
+                  ]
+                }
+              ]
             }
           ]
         }