Author: bjk (doc committer) Date: Mon Mar 19 04:46:11 2012 New Revision: 233160 URL: http://svn.freebsd.org/changeset/base/233160
Log: Expound a bit more about the system maximum number of FIBs, how it may be set, and current limitations on the value. Approved by: hrs (mentor) PR: docs/157453 MFC after: 1 week Modified: head/lib/libc/sys/setfib.2 Modified: head/lib/libc/sys/setfib.2 ============================================================================== --- head/lib/libc/sys/setfib.2 Mon Mar 19 03:27:08 2012 (r233159) +++ head/lib/libc/sys/setfib.2 Mon Mar 19 04:46:11 2012 (r233160) @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd August 8, 2008 +.Dd March 19, 2012 .Dt SETFIB 2 .Os .Sh NAME @@ -45,10 +45,28 @@ subsequent to the call, to be that of th The .Fa fib argument -may be between 0 and the current system maximum which +must be greater than or equal to 0 +and less than the current system maximum which may be retrieved by the .Va net.fibs sysctl. +The system maximum is set in the kernel configuration file with +.Pp +.Dl options ROUTETABLES= Ns Em N +.Pp +or in +.Pa /boot/loader.conf +with +.Pp +.Dl net.fibs= Ns Qq Em N +.Pp +where +.Em N +is an integer. +However, this maximum is capped at 16 due to the implementation storing +the fib number in a 4-bit field in +.Xr mbuf 9 +flags. The default fib of the process will be applied to all protocol families that support multiple fibs, and ignored by those that do not. The default fib for a process may be overridden for a socket with the use _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
