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Text File  |  1994-12-07  |  3KB  |  63 lines
  1. Calculate the Link Stations required fot 4/05/94..
  2.  
  3. +-------------------------------------------------------------+
  4. | II06558
  5. |                                                             |
  6. |          COMMUNICATIONS MANAGER INFORMATION APAR            |
  7. |                       EE 1.3                                |
  8. |                                                             |
  9. |        CALCULATE THE LINK STATIONS REQUIRED FOR CM          |
  10. |        RDS USING THE SQLLOO TRANSMISSION MODE               |
  11. |                                                             |
  12. |LAST UPDATE:  12/17/92                          BY: ATD      |
  13. |                                                             |
  14. |PURPOSE:  THIS INFORMATION APAR PROVIDES INFORMATION ON      |
  15. |          RDS USING SQLLOO.                                  |
  16. +-------------------------------------------------------------+
  17. |
  18. |  OVERVIEW
  19. |
  20. |    1. FREQUENT PROBLEMS AND SOLUTIONS.
  21. |
  22. +-------------------------------------------------------------+
  23. |    1. FREQUENT PROBLEMS AND SOLUTIONS.                      |
  24. +-------------------------------------------------------------+
  25. |  12/17/92
  26. |  PROBLEM:  ERROR QRW2272 0003 00000005 IS RECEIVED WHEN
  27. |            ATTEMPTING TO ACCESS A REMOTE DATA SERVICES
  28. |            ENVIRONMENT USING SQLLOO AS THE TRANSMISSION
  29. |            MODE. THIS IS CAUSED BY AN INSUFFICENT NUMBER
  30. |            OF LINK STATIONS BEING DEFINED.
  31. |  SOLUTION: CALCULATE THE CORRECT NUMBER OF NETBIOS,
  32. |            APPC (SNA), AND IEEE 802.2 LINK STATIONS
  33. |            USING THE FORMULA BELOW.
  34. |
  35. |  FORMULA:  SUBTRACT NETBIOS AND APPC (SNA) LINK STATIONS
  36. |            FROM IEEE 802.2 TOTAL. MULTIPLY BY 80%. THAT IS
  37. |            HOW MANY SQLLOO CAN USE. IF THAT NUMBER IS ZERO
  38. |            OR SMALLER, SQLLOO WILL NOT FUNCTION.
  39. |
  40. |            THERE IS AN ENTITY ON YOUR DLC CARD WHICH CONTROLS
  41. |            THE ACTUAL CONNECTION TO ANOTHER WORKSTATION (LINK
  42. |            STATIONS). WHEN A REQUESTER CONNECTS WITH A SERVER
  43. |            THERE IS A PHYSICAL PATHWAY ESTABLISHED BETWEEN
  44. |            THEM, AND EACH WORKSTATION MUST USE A LINK STATION
  45. |            TO CONTROL THE CONNECTION. THE REQUESTER MAY
  46. |            THEN START UP MANY PROGRAMS TO QUERY DATABASES ON
  47. |            THE SERVER (EACH OF WHICH IS A SESSION), BUT ALL
  48. |            OF THE SESSIONS GO OVER THE SAME LINK.
  49. |
  50. |            THE ONE EXCEPTION TO THIS IS, IF YOU ARE USING
  51. |            DIFFERENT TRANSMISSION MODES (APPC,SQLLOO). IN
  52. |            THE CASE WHERE YOU HAVE MANY SESSIONS BETWEEN A
  53. |            REQUESTER AND A SERVER SOME APPC SESSIONS AND SOME
  54. |            SQLLOO SESSIONS, YOU WILL NEED TWO LINKS (AND TWO
  55. |            LINK STATIONS ON EACH WORKSTATION) - ONE FOR ALL
  56. |            THE APPC SESSIONS AND ONE FOR THE SQLLOO SESSIONS.
  57. |
  58. +-------------------------------------------------------------+
  59. |KEYWORDS: CMINFO 566933602 R130 CM RDS SQLLOO                |
  60. |          RDS SQLLOO QRW2272 0003 00000005 LINK STATIONS     |
  61. +-------------------------------------------------------------+
  62. 12/31/99
  63.