Proxy Scenario (abap client)- XI, ICM_CONNECTION_FAILED

Question

Hi Forum,
I have a problem with a Proxy Scenario (ABAP client proxy),
My scenario is R/3 (abap client proxy)--->XI   ,
the client proxy while sending message to XI throws an error, which is seen in SXMB_MONI as:
404 Resource not found
Partner not reached
Error: -20
Version: 6040
Component: ICM
Date/Time: Fri Jan 25 09:20:54 2008 
Module: icxxconn_mt.c
Line: 2124
Server: xxxap5_RP1_05
Detail: Connection request from (143/22024/0) to host: xxXP1.xxx.com, service: 8000 failed (NIEHOST_UNKNOWN) AP-T143, U22024, 500 xxUSER, , 09:20:54, M0, W0, , 1/0
I can see a stuck entry (LUW), for this in SMQ2, even on several re-execution of that LUW in SMQ2, it gives an error:
SYSFAIL
XI Error Client_Receive_Filaed

Answer 1

Hi
404 Resource not found
There might be the problem with the server having not to find anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.
*Possible Tips:- *
• 404 is an HTTP response code that indicates that the resource in question couldn't be found. Usually this is due to an incorrect URL, so it is better to cross check all URLs. Check pipeline URL in the SLD in the business system of the Integration Server For this go to SLD->Business System-><yourIntegrtaion Server>->Pipeline URL: It should be like this http://<host>:<port>/sap/xi/engine?type=entry Where host is the host name of the Integration Server and port is the HTTP(8xxx) port. To verify this in Integration Server you can do like this. Go to SXMB_ADM->Integration Engine Configuration->Choose Edit from Menu -> Change Global Configuration Data to switch to change mode. Then select System Landscape - Load Configuration. (This is not required always)
• Check that the port really is the ICM HTTP Port and not the J2EE port i.e SMICM then menu GOTO --> SERVICES and check the port number for HTTP. It should be HTTP port
• If the error is Page cannot be displayed, cannot find server in https configurations Check and correct the SSL configuration for the ABAP and the J2EE side of the system
• If the error is because of integration server when using Proxy communications then check these. i.e SXMB_ADM->Integration Engine Configuration->Corresponding Integration Server enrty should be dest://<Http Integration server-Destination> Where < Http Integration server -Destination > is the RFC destination (SM59) of type HTTP connection (type H) to the Integration Server. In this case, host name, port, and path prefix are saved in the RFC destination
Refer below link
/people/krishna.moorthyp/blog/2006/07/23/http-errors-in-xi
Thanks
Swarup