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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