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etc/defaults/rc.conf: Add -i flag to rtsol/rtsold

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This disables the random (between zero and one seconds) delay before
rtsol and rtsold send a a Router Solicitation packet.  This delay is
specified as a SHOULD by RFC 4861 for avoidance of network congestion,
but network speeds have increased enough in the 25 years since this
first appeared (in RFC 1970) that it seems unnecessary as a default
at this point.

This speeds up the FreeBSD boot process by an average of 500 ms.

Reviewed by:	kp
Relnotes:	yes
Sponsored by:	https://www.patreon.com/cperciva
Differential Revision:	https://reviews.freebsd.org/D33089

(cherry picked from commit e29711da23)
This commit is contained in:
Colin Percival 2021-11-22 13:51:43 -08:00
parent d03a8d181c
commit 8056b73ea1
1 changed files with 2 additions and 2 deletions
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4
libexec/rc/rc.conf
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@ -522,10 +522,10 @@ route6d_flags="" # Flags to IPv6 routing daemon.
ipv6_default_interface="NO" # Default output interface for scoped addrs.
# This works only with
# ipv6_gateway_enable="NO".
rtsol_flags="" # Flags to IPv6 router solicitation.
rtsol_flags="-i" # Flags to IPv6 router solicitation.
rtsold_enable="NO" # Set to YES to enable an IPv6 router
# solicitation daemon.
rtsold_flags="-a" # Flags to an IPv6 router solicitation
rtsold_flags="-a -i" # Flags to an IPv6 router solicitation
# daemon.
rtadvd_enable="NO" # Set to YES to enable an IPv6 router
# advertisement daemon. If set to YES,