1The following parameters should be tunable at compile time. Some of them 2exist as sysctls too. 3 4This is far from complete 5 6Item Description 7---------------------------------------------------------------------------- 8MAX_LINKS Maximum number of netlink minor devices. (1-32) 9RIF_TABLE_SIZE Token ring RIF cache size (tunable) 10AARP_HASH_SIZE Size of Appletalk hash table (tunable) 11AX25_DEF_T1 AX.25 parameters. These are all tunable via 12AX25_DEF_T2 SIOCAX25SETPARMS 13AX25_DEF_T3 T1-T3,N2 have the meanings in the specification 14AX25_DEF_N2 15AX25_DEF_AXDEFMODE 8 = normal 128 is PE1CHL extended 16AX25_DEF_IPDEFMODE 'D' - datagram 'V' - virtual connection 17AX25_DEF_BACKOFF 'E'xponential 'L'inear 18AX25_DEF_NETROM Allow netrom 1=Y 19AX25_DF_TEXT Allow PID=Text 1=Y 20AX25_DEF_WINDOW Window for normal mode 21AX25_DEF_EWINDOW Window for PE1CHL mode 22AX25_DEF_DIGI 1 for inband 2 for cross band 3 for both 23AX25_DEF_CONMODE Allow connected modes 1=Yes 24AX25_ROUTE_MAX AX.25 route cache size - no currently tunable 25Unnamed (16) Number of protocol hash slots (tunable) 26DEV_NUMBUFFS Number of priority levels (not easily tunable) 27Unnamed (300) Maximum packet backlog queue (tunable) 28MAX_IOVEC Maximum number of iovecs in a message (tunable) 29MIN_WINDOW Offered minimum window (tunable) 30MAX_WINDOW Offered maximum window (tunable) 31MAX_HEADER Largest physical header (tunable) 32MAX_ADDR_LEN Largest physical address (tunable) 33SOCK_ARRAY_SIZE IP socket array hash size (tunable) 34IP_MAX_MEMBERSHIPS Largest number of groups per socket (BSD style) (tunable) 3516 Hard coded constant for amount of room allowed for 36 cache align and faster forwarding (tunable) 37IP_FRAG_TIME Time we hold a fragment for. (tunable) 38PORT_MASQ_BEGIN First port reserved for masquerade (tunable) 39PORT_MASQ_END Last port used for masquerade (tunable) 40MASQUERADE_EXPIRE_TCP_FIN Time we keep a masquerade for after a FIN 41MASQUERADE_EXPIRE_UDP Time we keep a UDP masquerade for (tunable) 42MAXVIFS Maximum mrouted vifs (1-32) 43MFC_LINES Lines in the multicast router cache (tunable) 44 45NetROM parameters are tunable via an ioctl passing a struct 46 474000 Size a Unix domain socket malloc falls back to 48 (tunable) should be 8K - a bit for 8K machines like 49 the ALPHA 50 51