TUNABLE 2.2 KB

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  1. The following parameters should be tunable at compile time. Some of them
  2. exist as sysctls too.
  3. This is far from complete
  4. Item Description
  5. ----------------------------------------------------------------------------
  6. MAX_LINKS Maximum number of netlink minor devices. (1-32)
  7. RIF_TABLE_SIZE Token ring RIF cache size (tunable)
  8. AARP_HASH_SIZE Size of Appletalk hash table (tunable)
  9. AX25_DEF_T1 AX.25 parameters. These are all tunable via
  10. AX25_DEF_T2 SIOCAX25SETPARMS
  11. AX25_DEF_T3 T1-T3,N2 have the meanings in the specification
  12. AX25_DEF_N2
  13. AX25_DEF_AXDEFMODE 8 = normal 128 is PE1CHL extended
  14. AX25_DEF_IPDEFMODE 'D' - datagram 'V' - virtual connection
  15. AX25_DEF_BACKOFF 'E'xponential 'L'inear
  16. AX25_DEF_NETROM Allow netrom 1=Y
  17. AX25_DF_TEXT Allow PID=Text 1=Y
  18. AX25_DEF_WINDOW Window for normal mode
  19. AX25_DEF_EWINDOW Window for PE1CHL mode
  20. AX25_DEF_DIGI 1 for inband 2 for cross band 3 for both
  21. AX25_DEF_CONMODE Allow connected modes 1=Yes
  22. AX25_ROUTE_MAX AX.25 route cache size - no currently tunable
  23. Unnamed (16) Number of protocol hash slots (tunable)
  24. DEV_NUMBUFFS Number of priority levels (not easily tunable)
  25. Unnamed (300) Maximum packet backlog queue (tunable)
  26. MAX_IOVEC Maximum number of iovecs in a message (tunable)
  27. MIN_WINDOW Offered minimum window (tunable)
  28. MAX_WINDOW Offered maximum window (tunable)
  29. MAX_HEADER Largest physical header (tunable)
  30. MAX_ADDR_LEN Largest physical address (tunable)
  31. SOCK_ARRAY_SIZE IP socket array hash size (tunable)
  32. IP_MAX_MEMBERSHIPS Largest number of groups per socket (BSD style) (tunable)
  33. 16 Hard coded constant for amount of room allowed for
  34. cache align and faster forwarding (tunable)
  35. IP_FRAG_TIME Time we hold a fragment for. (tunable)
  36. PORT_MASQ_BEGIN First port reserved for masquerade (tunable)
  37. PORT_MASQ_END Last port used for masquerade (tunable)
  38. MASQUERADE_EXPIRE_TCP_FIN Time we keep a masquerade for after a FIN
  39. MASQUERADE_EXPIRE_UDP Time we keep a UDP masquerade for (tunable)
  40. MAXVIFS Maximum mrouted vifs (1-32)
  41. MFC_LINES Lines in the multicast router cache (tunable)
  42. NetROM parameters are tunable via an ioctl passing a struct
  43. 4000 Size a Unix domain socket malloc falls back to
  44. (tunable) should be 8K - a bit for 8K machines like
  45. the ALPHA