Skip to content
Snippets Groups Projects
index.html 39.7 KiB
Newer Older
1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308
      
        <li class="md-nav__item">
  <a href="#examine-if-the-rules-are-executed-successfully" class="md-nav__link">
    <span class="md-ellipsis">
      Examine if the rules are executed successfully
    </span>
  </a>
  
</li>
      
        <li class="md-nav__item">
  <a href="#lcm-rules-and-osom-service-orchestration" class="md-nav__link">
    <span class="md-ellipsis">
      LCM Rules and OSOM Service Orchestration
    </span>
  </a>
  
</li>
      
        <li class="md-nav__item">
  <a href="#define-rules" class="md-nav__link">
    <span class="md-ellipsis">
      Define rules
    </span>
  </a>
  
    <nav class="md-nav" aria-label="Define rules">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#definition-language" class="md-nav__link">
    <span class="md-ellipsis">
      Definition language
    </span>
  </a>
  
</li>
        
      </ul>
    </nav>
  
</li>
      
        <li class="md-nav__item">
  <a href="#the-blocks-library" class="md-nav__link">
    <span class="md-ellipsis">
      The blocks library
    </span>
  </a>
  
</li>
      
        <li class="md-nav__item">
  <a href="#examples-of-rules" class="md-nav__link">
    <span class="md-ellipsis">
      Examples of Rules
    </span>
  </a>
  
    <nav class="md-nav" aria-label="Examples of Rules">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#define-variables-according-to-cases" class="md-nav__link">
    <span class="md-ellipsis">
      define variables according to cases
    </span>
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#define-complex-osm-configs-for-day-0" class="md-nav__link">
    <span class="md-ellipsis">
      Define complex OSM configs for DAY 0
    </span>
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#define-and-instantiate-different-services-according-to-service-order-request" class="md-nav__link">
    <span class="md-ellipsis">
      Define and instantiate different services according to Service Order request
    </span>
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#call-an-external-restful-service" class="md-nav__link">
    <span class="md-ellipsis">
      Call an external RESTful service
    </span>
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#create-new-service-orders" class="md-nav__link">
    <span class="md-ellipsis">
      Create New Service Orders
    </span>
  </a>
  
</li>
        
      </ul>
    </nav>
  
</li>
      
    </ul>
  
</nav>
                  </div>
                </div>
              </div>
            
          
          
            <div class="md-content" data-md-component="content">
              <article class="md-content__inner md-typeset">
                
                  


<h1 id="lifecycle-management-lcm-rules">Lifecycle Management (LCM) Rules</h1>
<ul>
<li>NOTE: This is a prototype/experimental feature. So issues might raise during operation</li>
</ul>
<p>LCM Rules are used for defining complex conditions and actions during the lifecycle of a service. In Openslice there are four types of rules defined:</p>
<ul>
<li>PRE_PROVISION</li>
<li>CREATION</li>
<li>AFTER_ACTIVATION </li>
<li>SUPERVISION </li>
<li>AFTER_DEACTIVATION </li>
</ul>
<p>The following figure displays the different phases that the rules are performed, during the lifecycle of a Network Slice Instance.</p>
<p><a href="../images/lcm/lcmfig1.png"><img alt="Rules in NSI" src="../images/lcm/lcmfig1.png" /></a></p>
<ul>
<li>PRE_PROVISION rules: Run only once just before creating a service with a given priority. </li>
<li>CREATION rules: Run while the referenced service dependencies of a service are created</li>
<li>AFTER_ACTIVATION rules: Run only once just after a service get the ACTIVE state</li>
<li>SUPERVISION rules: Run when a characteristic of a service is changed and the service is in the ACTIVE state </li>
<li>AFTER_DEACTIVATION rules: Run only once just after a service get the INACTIVE/TERMINATED state </li>
</ul>
<p>In general the rules allow to perform many actions during service LCM. Thes are some examples:</p>
<ul>
<li>Modify service specification parameters before the instantiation of a service (or during operation) based on other dependencies. These parameters might be part of other services already included in Service order</li>
<li>Translate GST/NEST parameter values to other values passed later to NFVO for instantiation or control</li>
<li>Define complex OSM Configs based on other dependencies and passing variables</li>
<li>Define any dependencies when creating the referenced services</li>
<li>Dynamically include new service dependencies</li>
<li>Create new service orders so include dynamically other services</li>
<li>Call external (RESTful) services (via http(s), define payload, examine response)</li>
</ul>
<h2 id="examine-if-the-rules-are-executed-successfully">Examine if the rules are executed successfully</h2>
<p>Rules are transformed automatically to executable code (currently is Java). If a rule is performed successfully  or has any issues (e.g. unexpected syntax errors or exceptions) appear in OSOM logfiles and also tey are attached as Notes to the running Service.</p>
<h2 id="lcm-rules-and-osom-service-orchestration">LCM Rules and OSOM Service Orchestration</h2>
<p>OSOM is the responsible service for executing the rules on a specific phase. The following image explains the design in the BPMN phases:</p>
<p><a href="../images/lcm/lcmfig1_osom.png"><img alt="Rules" src="../images/lcm/lcmfig1_osom.png" /></a></p>
<h2 id="define-rules">Define rules</h2>
<p>Rules are defined when designing a Service Spec. Here is an example of a list of rules:</p>
<p><a href="../images/lcm/lcmfig2.png"><img alt="lcmrules" src="../images/lcm/lcmfig2.png" /></a></p>
<p>Execution order of rules on a specific phase is random</p>
<ul>
<li>NOTE: There is a priority field. The lower the number the highest the priority of rule execution. For example Rule with priority 0 will run before rule with priority 1.</li>
</ul>
<h3 id="definition-language">Definition language</h3>
<ul>
<li>The visual language that Openslice used is based on Google's Blockly (see https://developers.google.com/blockly)</li>
<li>The blockly graph is automatically translated to Java internally and then dynamically executed during orchestration phases.</li>
</ul>
<p>The following figure is an example of such a rule design. The rule for example will run in PRE_PROVISION phase:</p>
<p><a href="../images/lcm/lcmfig3.png"><img alt="lcmrules" src="../images/lcm/lcmfig3.png" /></a></p>
<ul>
<li>The goal of the above rule is to properly define a variable AreaCodes given the chosen AreaOfService from a Service Order.</li>
<li>On the right side the user can define some rule properties or observe the underlying generated java code.</li>
</ul>
<h2 id="the-blocks-library">The blocks library</h2>
<p>The following images describe some blocks found in the library.</p>
<p>Blockly has syntax rules. It helps with colours to define them. </p>
<p>So for example a parameter that is a Number cannot be "glued" with a String. Will need some conversion first</p>
<p><a href="../images/lcm/lcmfig4.png"><img alt="lcmrules" src="../images/lcm/lcmfig4.png" /></a>
<a href="../images/lcm/lcmfig5.png"><img alt="lcmrules" src="../images/lcm/lcmfig5.png" /></a>
<a href="../images/lcm/lcmfig6.png"><img alt="lcmrules" src="../images/lcm/lcmfig6.png" /></a>
<a href="../images/lcm/lcmfig7.png"><img alt="lcmrules" src="../images/lcm/lcmfig7.png" /></a>
<a href="../images/lcm/lcmfig8.png"><img alt="lcmrules" src="../images/lcm/lcmfig8.png" /></a></p>
<h2 id="examples-of-rules">Examples of Rules</h2>
<p>The following images provide some examples of rules.</p>
<h3 id="define-variables-according-to-cases">define variables according to cases</h3>
<p>In the following example we :</p>
<ul>
<li>define a String variable. </li>
<li>Then according to the Area of Service selected from the Service Order of the Service Specification we need to define it properly.</li>
<li>We output the value to the OSOM Log</li>
<li>Define dynamically the value of another parameter (This is fictional) and then do some other condition check</li>
</ul>
<p>The strAreaCodes could be passed then e.g. to NFVO for instantiation of services to these cells.</p>
<p><a href="../images/lcm/lcmfig9.png"><img alt="lcmrules" src="../images/lcm/lcmfig9.png" /></a></p>
<h3 id="define-complex-osm-configs-for-day-0">Define complex OSM configs for DAY 0</h3>
<p>The following displays some complex examples for defining the parameters to pass to the NFV. In this case is OSM.</p>
<ul>
<li>
<p>NOTE: The OSM_CONFIG characteristic of a service is the one that it is used in orchestration to instantiate NS from OSM</p>
</li>
<li>
<p>check the variable strTargetsParam. It is passed to the variable strOsmConfig3 which is executed if the Number of Cameras is more than 100. </p>
</li>
<li>if the Video quality requested is 3, then the Maximum Namber of camers will be 8. Check the OSM detailed configuration block and its syntax.</li>
<li>if the Video quality requested is 2, we use a simpler OSM Config block to configure the parameter OSM_CONFIG. We just injected a json text ( watch the Escape of the string for the Quotes!)</li>
<li>if the Video quality requested is 1, again we use a simpler OSM Config block to configure the parameter OSM_CONFIG. We use as injected json text a variable constructed later</li>
</ul>
<p><a href="../images/lcm/lcmfig10.png"><img alt="lcmrules" src="../images/lcm/lcmfig10.png" /></a></p>
<h3 id="define-and-instantiate-different-services-according-to-service-order-request">Define and instantiate different services according to Service Order request</h3>
<p>In the following example we would like to offer a service either as Platinum, Gold or Silver. Depending on the selection we need to instantiate different services.</p>
<p>There are different ways to accomplish this:</p>
<ul>
<li>create dynamically New Service Orders of RFSs with equivalent quality of Services</li>
<li>change for example the VIMs that you deploy the NS</li>
<li>change the NSD (that is use different VNFs)</li>
</ul>
<p>The following image displays for example the latter case.</p>
<p><a href="../images/lcm/lcmfig11.png"><img alt="lcmrules" src="../images/lcm/lcmfig11.png" /></a></p>
<h3 id="call-an-external-restful-service">Call an external RESTful service</h3>
<p>This is useful in cases for example of alarms , external logging, calling other services e.g. email or even a complex algorithm written in other language e.g. call an external service and get a result. (service e.g. a Python service)</p>
<p><a href="../images/lcm/lcmfig12.png"><img alt="lcmrules" src="../images/lcm/lcmfig12.png" /></a></p>
<p><a href="../images/lcm/lcmfig13.png"><img alt="lcmrules" src="../images/lcm/lcmfig13.png" /></a></p>
<h3 id="create-new-service-orders">Create New Service Orders</h3>
<p>The following example calls to Order a New Service Specification with specific Parameter Values</p>
<p><a href="../images/lcm/lcmfig14.png"><img alt="lcmrules" src="../images/lcm/lcmfig14.png" /></a></p>












                
              </article>
            </div>
          
          
<script>var target=document.getElementById(location.hash.slice(1));target&&target.name&&(target.checked=target.name.startsWith("__tabbed_"))</script>
        </div>
        
          <button type="button" class="md-top md-icon" data-md-component="top" hidden>
  
  <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8v12Z"/></svg>
  Back to top
</button>
        
      </main>
      
        <footer class="md-footer">
  
    
      
      <nav class="md-footer__inner md-grid" aria-label="Footer" >
        
          
          <a href="../nfvcatalogs/" class="md-footer__link md-footer__link--prev" aria-label="Previous: NFV Catalogs">
            <div class="md-footer__button md-icon">
              
              <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z"/></svg>
            </div>
            <div class="md-footer__title">
              <span class="md-footer__direction">
                Previous
              </span>
              <div class="md-ellipsis">
                NFV Catalogs
              </div>
            </div>
          </a>
        
        
          
          <a href="../architecture/consumingServicesFromExternalPartners/" class="md-footer__link md-footer__link--next" aria-label="Next: Consuming Services From External OSS">
            <div class="md-footer__title">
              <span class="md-footer__direction">
                Next
              </span>
              <div class="md-ellipsis">
                Consuming Services From External OSS
              </div>
            </div>
            <div class="md-footer__button md-icon">
              
              <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M4 11v2h12l-5.5 5.5 1.42 1.42L19.84 12l-7.92-7.92L10.5 5.5 16 11H4Z"/></svg>
            </div>
          </a>
        
      </nav>
    
  
  <div class="md-footer-meta md-typeset">
    <div class="md-footer-meta__inner md-grid">
      <div class="md-copyright">
  
    <div class="md-copyright__highlight">
      Copyright &copy; 2019-2024 Openslice Project
    </div>
  
  
    Made with
    <a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener">
      Material for MkDocs
    </a>
  
</div>
      
        <div class="md-social">
  
    
    
    
    
      
      
    
    <a href="https://osl.etsi.org/" target="_blank" rel="noopener" title="osl.etsi.org" class="md-social__link">
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc.--><path d="M352 256c0 22.2-1.2 43.6-3.3 64H163.3c-2.2-20.4-3.3-41.8-3.3-64s1.2-43.6 3.3-64h185.4c2.2 20.4 3.3 41.8 3.3 64zm28.8-64h123.1c5.3 20.5 8.1 41.9 8.1 64s-2.8 43.5-8.1 64H380.8c2.1-20.6 3.2-42 3.2-64s-1.1-43.4-3.2-64zm112.6-32H376.7c-10-63.9-29.8-117.4-55.3-151.6 78.3 20.7 142 77.5 171.9 151.6zm-149.1 0H167.7c6.1-36.4 15.5-68.6 27-94.7 10.5-23.6 22.2-40.7 33.5-51.5C239.4 3.2 248.7 0 256 0s16.6 3.2 27.8 13.8c11.3 10.8 23 27.9 33.5 51.5 11.6 26 20.9 58.2 27 94.7zm-209 0H18.6c30-74.1 93.6-130.9 172-151.6-25.5 34.2-45.3 87.7-55.3 151.6zM8.1 192h123.1c-2.1 20.6-3.2 42-3.2 64s1.1 43.4 3.2 64H8.1C2.8 299.5 0 278.1 0 256s2.8-43.5 8.1-64zm186.6 254.6c-11.6-26-20.9-58.2-27-94.6h176.6c-6.1 36.4-15.5 68.6-27 94.6-10.5 23.6-22.2 40.7-33.5 51.5-11.2 10.7-20.5 13.9-27.8 13.9s-16.6-3.2-27.8-13.8c-11.3-10.8-23-27.9-33.5-51.5zM135.3 352c10 63.9 29.8 117.4 55.3 151.6-78.4-20.7-142-77.5-172-151.6h116.7zm358.1 0c-30 74.1-93.6 130.9-171.9 151.6 25.5-34.2 45.2-87.7 55.3-151.6h116.6z"/></svg>
    </a>
  
    
    
    
    
      
      
    
    <a href="https://labs.etsi.org/rep/osl" target="_blank" rel="noopener" title="labs.etsi.org" class="md-social__link">
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc.--><path d="m503.5 204.6-.7-1.8-69.7-181.78c-1.4-3.57-3.9-6.59-7.2-8.64-2.4-1.55-5.1-2.515-8-2.81-2.9-.295-5.7.083-8.4 1.11-2.7 1.02-5.1 2.66-7.1 4.78-1.9 2.12-3.3 4.67-4.1 7.44l-47 144H160.8l-47.1-144c-.8-2.77-2.2-5.31-4.1-7.43-2-2.12-4.4-3.75-7.1-4.77a18.1 18.1 0 0 0-8.38-1.113 18.4 18.4 0 0 0-8.04 2.793 18.09 18.09 0 0 0-7.16 8.64L9.267 202.8l-.724 1.8a129.57 129.57 0 0 0-3.52 82c7.747 26.9 24.047 50.7 46.447 67.6l.27.2.59.4 105.97 79.5 52.6 39.7 32 24.2c3.7 1.9 8.3 4.3 13 4.3 4.7 0 9.3-2.4 13-4.3l32-24.2 52.6-39.7 106.7-79.9.3-.3c22.4-16.9 38.7-40.6 45.6-67.5 8.6-27 7.4-55.8-2.6-82z"/></svg>
    </a>
  
    
    
    
    
      
      
    
    <a href="https://www.linkedin.com/company/openslice/" target="_blank" rel="noopener" title="www.linkedin.com" class="md-social__link">
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc.--><path d="M416 32H31.9C14.3 32 0 46.5 0 64.3v383.4C0 465.5 14.3 480 31.9 480H416c17.6 0 32-14.5 32-32.3V64.3c0-17.8-14.4-32.3-32-32.3zM135.4 416H69V202.2h66.5V416zm-33.2-243c-21.3 0-38.5-17.3-38.5-38.5S80.9 96 102.2 96c21.2 0 38.5 17.3 38.5 38.5 0 21.3-17.2 38.5-38.5 38.5zm282.1 243h-66.4V312c0-24.8-.5-56.7-34.5-56.7-34.6 0-39.9 27-39.9 54.9V416h-66.4V202.2h63.7v29.2h.9c8.9-16.8 30.6-34.5 62.9-34.5 67.2 0 79.7 44.3 79.7 101.9V416z"/></svg>
    </a>
  
    
    
    
    
      
      
    
    <a href="https://twitter.com/OpensliceOSS" target="_blank" rel="noopener" title="twitter.com" class="md-social__link">
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc.--><path d="M389.2 48h70.6L305.6 224.2 487 464H345L233.7 318.6 106.5 464H35.8l164.9-188.5L26.8 48h145.6l100.5 132.9L389.2 48zm-24.8 373.8h39.1L151.1 88h-42l255.3 333.8z"/></svg>
    </a>
  
</div>
      
    </div>
  </div>
</footer>
      
    </div>
    <div class="md-dialog" data-md-component="dialog">
      <div class="md-dialog__inner md-typeset"></div>
    </div>
    
      <div class="md-progress" data-md-component="progress" role="progressbar"></div>
    
    
    <script id="__config" type="application/json">{"base": "..", "features": ["navigation.instant", "navigation.instant.progress", "navigation.top", "navigation.footer", "navigation.path", "search", "search.highlight"], "search": "../assets/javascripts/workers/search.b8dbb3d2.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}, "version": {"provider": "mike"}}</script>
      <script src="../assets/javascripts/bundle.8fd75fb4.min.js"></script>