Algorithm 2 CoAP Request in sNAP

$request\_pkt\leftarrow [ICN\_message]$ $ICN\_ID\leftarrow [ICN\_message]$ $SToken\leftarrow ICN\_ID\_To\_SToken[ICN\_ID]$ if$SToken$ = = $NULL$ then  $SToken\leftarrow generateNewToken\left(\right)$  $ICN\_ID\_To\_SToken[ICN\_ID]\leftarrow SToken$  $request\_pkt\leftarrow SToken$ else  $request\_pkt\leftarrow SToken$ end if $SToken\_To\_ICN\_ID\_list\left[SToken\right]\leftarrow ICN\_ID$ $resourceURI\leftarrow [request\_pkt]$ $coap\_server\_list\leftarrow lookup\left(resourceURI\right)$ $/\ast groupcommunicationiflist>1\ast /$ for $coap\_server\_list$ do  $coap\_server\leftarrow enque(coap\_server\_list)$  $/\ast suppresssimilarrequestfromdifferentcNAP\ast /$  if $pending\_res\_list(res\_ICN\_ID,coap\_server).size$ == 1 then   $sendrequest\_pkttocoap\_server$  end if end for