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2344643 - ICM " SiBind failed (sirc=7;99-Cannot assign requested address <IP address>)" in dev_icm


An SAP ABAP sender system sends many outbound connections in a short period of time.

There could be different scenarios:

  1. The destination system is a PI and in the SXI Monitor (transaction SXI_MONITOR) of the sender system it appears:

    HTTP Error :Receiving message
    "ClIENT_RECEIVE_FAILED Error while receiving by HTTP (error code: 411, error text : Connect to <destination hostname>:<port nr> failed: NIECONN_REFUSED (-10)"

      <SAP:Category>XIServer </SAP:Category>
      <SAP:P1>411 </SAP:P1>
      <SAP:P2>Connect to  <destination hostname>:<port nr > failed: NIECONN_REFUSED (-10)</SAP:P2>
      <SAP:P3 />>(See attachment HTMLError for details)</SAP:P3>
      <SAP:P4 />
      <SAP:AdditionalText />
      <SAP:Stack>Error while receiving by HTTP (error code: 114 error text:  Connect to <destination hostname>:<port nr > failed: NIECONN_REFUSED (-10)">
      <SAP:Retry>N </SAP:Retry>
  2. The server is a Web Service in the destination system.

In both cases the following applies:

  • In the dev_icm trace file (level 2) appears:

after the  Icm Worker Thread starts to establish the connection
[Thr <nr>] NiILocalCheck: SiBind failed (sirc=7;99-Cannot assign requested address <IP address>)

meaning  the connection can not be initialed as the address is not available.
then it will be trying for 5 seconds... (that corresponds with the default value of parameter "icm/conn_timeout")
[Thr <nr>] NiICheckPendConnection: connection of hdl <nr> to <IP address>:<port nr> still in progress (5000)
[Thr <nr>] NiIConnect: state of hdl <nr> NI_CONN_WAIT
[Thr <nr>] *** ERROR => NiBufIConnect: non-buffered connect pending after 5000ms (hdl <IP address>:<port nr>) [nibuf.cpp    4524]
[Thr <nr>] NiICloseHandle: called for hdl <nr> while waiting for connection
[Thr <nr>] NiICloseHandle: shutdown and close hdl <nr>/sock <nr>
[Thr <nr>] IcmIConnConnect: Connect to host: <destination hostname>:<port nr>, NIECONN_REFUSED(-10)
[Thr <nr>] *** WARNING => Connect to <destination hostname>:<port nr> failed: NIECONN_REFUSED(-10) {00080aa9} [icxxconn.c 2356]

after 5 seconds, the connection still in progress, shutdown and close is due to the timeout

  • Running a WireShark trace we observed reuse of ports in the Sender system. 

Read )" in dev_icm">more...


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CLIENT_RECEIVE_FAILED, non-buffered connect, NIECONN_REFUSED, SI_ECONN_BROKEN , KBA , BC-CST-IC , Internet Communication Manager , BC-XI-CON , Connectivity , Problem

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