Update gnb.cpp

src/gnb.cpp

@@ -70,7 +70,7 @@ static nr::gnb::GnbConfig *ReadConfigYaml()
         SingleSlice s{};
         s.sst = yaml::GetInt32(nssai, "sst", 1, 0xFF);
         if (yaml::HasField(nssai, "sd"))
-            s.sd = octet3{yaml::GetInt32(nssai, "sd", 1, 0xFFFFFF)};
+            s.sd = octet3{yaml::GetInt32(nssai, "sd", 0, 0xFFFFFF)};
         result->nssai.slices.push_back(s);
     }