Connection Setup Errors

Connect fails because the server is not running (connection refused)

The log file contains the following entries:

The client issues the error message below:

          
*********************************************************************** * LOCATION SAProuter 39.1 (SP3) on 'ld8060' * ERROR partner '10.66.66.91:3299' not reached * * TIME Thu Jun 14 13:18:22 2007 * RELEASE 710 * COMPONENT NI (network interface) * VERSION 39 * RC -92 * MODULE nixxi.cpp * LINE 3068 * DETAIL NiPConnect2: 10.66.66.91:3299 * SYSTEM CALL connect * ERRNO 111 * ERRNO TEXT Connection refused * COUNTER 4 ***********************************************************************
            

Explanation:

On the server side there is no program running that listens to IP address 10.66.66.91 and port 3299 (LISTEN).

Solution approach:

• Check that the host name/IP address and server name/port number are correct.

• Check that the SAProuter and the system or corresponding program on the server is running and is using the correct port (OS command netstat -an).

TCP/IP connect takes too long (longer than the timeout -W value)

The log file contains the following entries:

The client issues the error message below:

          
*********************************************************************** * LOCATION SAProuter 39.1 (SP3) on 'ld8060' * ERROR connection to 1.1.1.1:3299 timed out * * TIME Thu Jun 14 13:22:06 2007 * RELEASE 710 * COMPONENT NI (network interface) * VERSION 39 * RC -5 * MODULE nirout.cpp * LINE 6548 * DETAIL RTPENDLIST::timeoutPend: could not establish connection within * 5s (ROUTED) * COUNTER 6 ***********************************************************************
             

Explanation:

In this example, the TCP/IP connection from the SAProuter to the next node (the next SAProuter, a system, or another network component) could not be established within a specified timeout period.

Solution approach:

This error can occur if the server host is down or the IP address of the host cannot be reached.

It can also be due to the network failing to establish the TCP/IP connection within 5 seconds (the timeout value defined in option -W).

You may be able to solve this problem by using a greater value for option -W.

Route setup takes too long

The log file contains the following entries:

The client issues the error message below:

          
*********************************************************************** * LOCATION SAProuter 39.1 (SP3) on 'ld8060' * ERROR connection to host3:3299 timed out * * TIME Thu Jun 14 13:34:24 2007 * RELEASE 710 * COMPONENT NI (network interface) * VERSION 39 * RC -5 * MODULE nirout.cpp * LINE 6537 * DETAIL RTPENDLIST::timeoutPend: no route completion within 5s * (ROUTED) * COUNTER 17 ***********************************************************************
            

Explanation:

The SAProuter is able to connect to the next host using TCP/IP, but the next host takes too long to establish the route to the destination. It receives no NI_PONG (confirmation that the route has been established) within the -W timeout period.

Solution approach:

• Find out why the subsequent SAProuter was unable to establish the connection within 5 seconds (in this example). It might be due to slow name resolution, for example. The log and trace files should provide further information on this.

• In the case of connections using multiple SAProuters in a WAN environment, increase option -W. If multiple SAProuters are involved in setting up a connection and the network response times are relatively high, the default value of 5 seconds is not sufficient to enable the connection to the target system to be established.

No route permission for the connection

The log file contains the following entries:

The client issues the error message below.

          
************************************************************************ * LOCATION SAProuter 39.1 (SP3) on 'ld8060' * ERROR ld8060: route permission denied (host2.company.corp to * host1, 3254) * * TIME Thu Jun 14 14:18:20 2007 * RELEASE 710 * COMPONENT NI (network interface) * VERSION 39 * RC -94 * COUNTER 5 ***********************************************************************
            

Explanation:

The SAProuter rejects the connection because the route permission table does not allow it.

Solution approach:

Check the route permission table.

Error on the subsequent host

This error does not occur on the local SAProuter. Instead, it occurs on a subsequent host. Messages of the following type appear in the log of the local SAProuter:

or

The client issues the error message below:

          
************************************************************************ LOCATION SAProuter 37.15 on hs0126 * ERROR partner not reached (host 10.66.66.91, service 3298) * * TIME Thu Jun 14 14:42:54 2007 * RELEASE 640 * COMPONENT NI (network interface) * VERSION 37 * RC -93 * MODULE nixxi.cpp * LINE 8724 * DETAIL NiPConnect2 * SYSTEM CALL SiPeekPendConn * ERRNO 239 * ERRNO TEXT Connection refused * COUNTER 5 ***********************************************************************
            

or

          
*********************************************************************** * LOCATION SAProuter 39.0 on 'host3' * ERROR host3: route permission denied (host2.company.corp to * host1, 3253) * * TIME Thu Jun 14 14:40:28 2007 * RELEASE 710 * COMPONENT NI (network interface) * VERSION 39 * RC -93 * COUNTER 3 **********************************************************************
            

Solution approach:

Check the log and trace files on the SAProuter where the error occurred if the information already provided is not sufficient. The SAProuter error message that is normally displayed on the client contains information on the error. The LOCATION line tells you where the error occurred.