IP_MAX_MEMBERSHIPS?
Andreas Jaeger
aj@suse.de
Mon Apr 23 22:57:00 GMT 2001
Craig Rodrigues <rodrigc@mediaone.net> writes:
> Hi,
>
> I am looking at /usr/include/bits/in.h in glibc 2.2.2, lines 59-61:
> #define IP_DEFAULT_MULTICAST_TTL 1
> #define IP_DEFAULT_MULTICAST_LOOP 1
> #define IP_MAX_MEMBERSHIPS 20
>
> How were these values chosen? Are they based on some kernel
> parameter limitations?
gromit:/usr/src/linux:[0]$ grep -r IP_MAX_MEMBERSHIP .
./net/ipv4/igmp.c:#define IP_MAX_MEMBERSHIPS 20
./net/ipv4/igmp.c:int sysctl_igmp_max_memberships = IP_MAX_MEMBERSHIPS;
./net/TUNABLE:IP_MAX_MEMBERSHIPS Largest number of groups per socket (BSD style) (tunable)
Andreas
--
Andreas Jaeger
SuSE Labs aj@suse.de
private aj@arthur.inka.de
http://www.suse.de/~aj
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