What are the various ports used by OLT?

Having recently had 'fun' getting a load agent working in our secure LAN, I was wondering if someone could clarify what the various ports are used by/for?
I am aware of the following:
9001 - Actually mentioned when setting up a load agent
1099 - Mentioned when setting up a data collector
1098 - ? necessary for load agent (I'd hazard a guess at this also being Data Collector related)
4444 - ? necessary for load agent
7071 - ? necessary for load agent
I have also had the following ports mentioned to me while looking at similar issues (but they did not need opening in my recent excercise):
7073
8083
8088
I have also suggested this information be added to the knowledgebase article (Doc ID: 787226.1) as they may need opening on any firewalls.

I tried to add a perfmon monitor on my local system.
Monitored system
HostName: localhost
username: windows user
password: windows password
Domain: windows domain name
Data Collector
Name: OLT server
Hostname: localhost
Port: 8088
Username: oats
Password: *****
I got this error.
An unhandled exception has occurred in the Application Service. Please retry the action you were performing. If you still experience the same problem, please try the following:
Error while calling discovery: Server returned error in response to request 1065: Discovery for request null failed: code=dis20: (message id=console.discoveryError): (message id=responseServerError)
Caused by: Discovery for request null failed: code=dis20: (message id=console.discoveryError)
Caused by: Server threw an exception in response to request 1066: (message id=responseServerException)
Caused by: Configuration error in workstation oats-am://LTRBHOJ.keste.com:8088/oats: (message id=Configuration error in workstation oats-am://LTRBHOJ.keste.com:8088/oats)
Caused by: Error starting data collector on oats-am://LTRBHOJ.keste.com:8088:{1}: (message id=ds.dcStartError)
Caused by: Remote host closed connection during handshake
Caused by: SSL peer shut down incorrectly
Did anyone face this issue ?

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    The system field is set by the runtime environment. Its content can be changed in the ABAP program to influence the runtime environment.
    The system field must be set in the ABAP program. It can then be evaluated by the runtime environment or the program.
    The system field is only for internal use and must not be used in ABAP programs.
    The system field is obsolete and its content is not set. It cannot be used in ABAP programs.
                                                                                    Thematic Overview
    The following is a thematic summary of the system fields with notes on their use:
    System information
    ·        Information on the current R/3 System
    ·        Information on the user session
    ·        Date and time information
    ·        Information on the current ABAP program
    ·        Background processing
    ·        Batch input
    ABAP programming
    ·        Constants
    ·        Character strings
    ·        Loops
    ·        Internal Tables
    ·        Database accesses
    ·        Return value
    Screens
    ·        Screens
    ·        Selection screens
    ·        Lists
    ·        Messages
    Internal system fields
    Obsolete system fields
                                                                                    System Information
    Information on the Current R/3 System
    SY-DBSYS
    Central database system, for example INFORMIX, ORACLE
    SY-HOST
    Application server, for example HS0333, PAWDF087
    SY-OPSYS
    Operating system of application server, for example HP-UX, SINIX
    SY-SAPRL
    Release status of R/3 System, for example 30D, 46A
    SY-SYSID
    Name of R/3 System, for example B20, I47
    Information on the User Session
    SY-LANGU
    One-digit language key, for example D, E, F. Either logon language of user or set using the SET LOCALE LANGUAGE statement.
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    Client number the user logged on with, for example 000, 400.
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    Indexes external modes. Zero in first mode. In new modes, opened using the Create Mode function or by calling a transaction using /o, it is raised by 1. If previous modes were deleted, the free numbers are used first. Modes opened using  CALL TRANSACTION … STARTING NEW TASK start back at 0.
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    Logon name of user, for example KELLERH, BC400-01.
    Date and Time Information
    The following system fields are always set automatically. If necessary, the GET TIME statement synchronizes the application server time with that of the database server and writes it to the system field SY-UZEIT. SY-DATUM and the system fields for the local time zone, that is SY-TIMLO, SY-DATLO, and SY-ZONLO are also reset.
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    Local date of user, for example 19981129, 19990628.
    SY-DATUM
    Current (application server) date, for example 19981130, 19990627.
    SY-DAYST
    During daylight saving time X, otherwise empty.
    SY-FDAYW
    Factory calendar weekday, Sunday 0 … Saturday 6.
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    Local time of user, for example 154353, 225312.
    SY-TZONE
    Time difference to Greenwich Mean Time (UTC) in seconds, for example 3600, 10800.
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    Current (application server) time, for example 164353, 215312.
    SY-ZONLO
    Time zone of user, for example CET, UTC.
    Information on the Current ABAP Program
    SY-CALLD
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    ·        SY-CALLD is set to ‘X‘ in a program called using CALL TRANSACTION, CALL DIALOG, or SUBMIT … AND RETURN.
    ·        SY-CALLD is set to SPACE in a program called using LEAVE TO TRANSACTION, entering a transaction code on a screen, and processing batch input folders. 
    ·        With SUBMIT (without RETURN) SY-CALLD retains the previous value.
    SY-CPROG
    In externally called procedures, the name of the calling program, otherwise the name of the current program. If an externally called procedure calls another external procedure, SY-CPROG keeps the name of the first main program and is not given the name of the main program of the further caller.
    SY-DBNAM
    With executable programs this is the linked logical database.
    SY-DYNGR
    Screen group of current screen. You can assign several screens to a common screen group. You can use this, for example, to modify all of the screens in the group in a uniform way.
    SY-DYNNR
    Number of current screen During the selection screen processing, SY-DYNNR contains the screen number of the current selection screen. During list processing, SY-DYNNR contains the number of the container screen. While a subscreen is being processed, SY-DYNNR contains its screen number. This also applies to tabstrips.
    SY-LDBPG
    With executable programs, the database program of the linked logical database.
    SY-REPID
    Name of current ABAP program. With externally called procedures this is the name of the procedure’s main program.
    If SY-REPID was transferred to an external procedure as an actual parameter before Release 6.10, the formal parameter was not given the name of the caller, but the name of the procedure’s main program. SY-REID had to be transferred to an auxiliary variable before the call or you had to use SY-PROG.
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    SY-TCODE
    Name of current transaction code.
    Background Processing
    SY-BATCH
    SY-BATCH is set to X in an ABAP program running in the background. Otherwise it is empty.
    Batch Input
    SY-BINPT
    SY-BINPT is set to X during processing of batch input folders and in ABAP programs called with CALL TRANSACTION USING. Otherwise it is empty.
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                                                                                    ABAP Programming
    Constants
    SY-ABCDE
    Contains the Alphabet. Can be used to access individual letters independently of the codepage by specifying offset.
    SY-ULINE
    Contains a horizontal line with length 255. Can be used when creating the list.
    SY-VLINE
    Contains a vertical line (|). Can be used when creating the list
    Loops
    SY-INDEX
    SY-INDEX contains the number of loop passes in DO and WHILE loops, including the current loop pass.
    Character Strings
    SY-FDPOS
    Found location for operations with character-type fields.
    ·        If the operators CO, CN, CA, NA, CS, NS, CP, NP are used in comparisons, SY-FDPOS is assigned offset values depending on the comparison result.
    ·        SEARCH … FOR … sets SY-FDPOS to the offset of the found search string.
    Internal Tables
    SY-TABIX
    Current line in an internal table. With the following statements SY-TABIX is set for index tables. With hashed tables, SY-TABIX is not filled or it is set to 0.
    ·        APPEND sets SY-TABIX to the index of the last table row, that is the total number of entries in the target table.
    ·        COLLECT sets SY-TABIX to the index of the existing or appended table row. With hashed tables, SY-TABIX is set to 0.
    ·        LOOP AT sets SY-TABIX to the index of the current table row at the beginning of every loop pass. After leaving a loop, SY-TABIX is set to the value it had before entering the loop. With hashed tables, SY-TABIX is set to 0.
    ·        READ TABLE sets SY-TABIX to the index of the table row read. If no row is found with binary search while reading, SY-TABIX contains the index of the next-highest row or the total number of rows +1. If no row is found with linear search while reading, SY-TABIX is undefined.
    ·        SEARCH  0). Each time an interactive list event occurs, the system automatically increases SY-LSIND by 1. SY-LSIND can be changed in the ABAP program to navigate between detail lists. Changes to SY-LSIND are not taken into account until the end of the list event. Therefore, any manipulation of SY-LISND should be done using the last command of the processing block.
    SY-LSTAT
    ID for list levels within the program. SY-LSTAT can be filled with values during list creation in the ABAP program. The value valid when the list is completed is saved with the list. In the case of an interactive list event, SY-LSTAT is set to the value it was assigned during the creation of the list from which the event takes place. SY-LSTAT is no longer maintained and should therefore no longer be used.
    SY-STACO
    Number of the first displayed column of the list from which the event was triggered. Counting starts at 1.
    SY-STARO
    Number of the upper-most displayed row of the upper-most page of the list, from which the event was triggered. Counting begins at 1. This does not include the page header.
    Printing Lists
    When printing lists, the spool and runtime systems require certain internal information, which is available in the following system fields and is set during print activation.
    SY-CALLR
    Contains a value that displays where printing was started, for example NEW-PAGE for program-controlled printing or RSDBRUNT for printing from the selection screen.
    SY-PRDSN
    Contains the name of the spool file during printing.
    SY-SPONO
    Contains the name of the spool number during printing.
    SY-MAROW, SY-MACOL
    The SET MARGIN statement fills the system fields SY-MAROW and SY-MACOL, which determine the number of lines on the upper margin and the number of columns on the left margin when printing.
    Print Parameters
    The print parameters are transferred to the spool system by the runtime system in a structure of dictionary type PRI_PARAMS. Before this structure was used, its purpose was served by system fields. Today a subset of the PRI_PARAMS structure is still written to system fields with the same names when printing is activated. This information is redundant and should not be used.
    Messages
    If you execute the MESSAGE statement, the following system fields are set. If you execute the MESSAGE … RAISING statement in function modules and methods, these fields are also set in the calling program, if it handles the exception.
    SY-MSGID
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    SY-MSGNO
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    SY-MSGTY
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    SY-MSGV1,…,SY-MSGV4
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    Special Actions that Fill Message Fields
    ·        If you request database locks using the ENQUEUE function module, the field SY-MSGV1 contains the name of the user who holds the lock, in the case of the FOREIGN_LOCK exception.
    ·        IN the case of CALL TRANSACTION or CALL DIALOG with the USING addition, a message displayed during the called screen sequence is returned in the fields SY-MSGID, SY-MSGTY, SY-MSGNO, SY-MSGV1, ... , SY-MSGV4.
    ·        During Remote Function Call (RFC), error messages are transferred from the remote system to the calling system and SY-MSGID, SY-MSGTY, SY-MSGNO,SY-MSGV1, SY-MSGV2, SY-MSGV3, SY-MSGV4 are set. If short dumps or type X messages occur, the system also sets the fields.
                                                                                    Internal System Fields
    Internal system fields are only for internal use in the ABAP runtime environment and are defined in the kernel. Under no circumstances must they be overwritten in ABAP programs and they should also not be read (processed).
    SY-CFWAE
    Undocumented
    SY-CHWAE
    Undocumented
    SY-DEBUG
    Undocumented
    SY-DSNAM
    Name of spool output file.

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