From: David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
To: pch-chEQUL3jiZBWk0Htik3J/w@public.gmane.org
Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
kuznet-v/Mj1YrvjDBInbfyfbPRSQ@public.gmane.org,
jmorris-gx6/JNMH7DfYtjvyW6yDsg@public.gmane.org,
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tgraf-G/eBtMaohhA@public.gmane.org,
jbenc-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
Subject: Re: [PATCH v2 net-next 0/3] ipv4: Hash-based multipath routing
Date: Sat, 29 Aug 2015 13:14:29 -0700 (PDT) [thread overview]
Message-ID: <20150829.131429.360433621593751136.davem@davemloft.net> (raw)
In-Reply-To: <1440792050-2109-1-git-send-email-pch-chEQUL3jiZBWk0Htik3J/w@public.gmane.org>
From: pch-chEQUL3jiZBWk0Htik3J/w@public.gmane.org
Date: Fri, 28 Aug 2015 22:00:47 +0200
> When the routing cache was removed in 3.6, the IPv4 multipath algorithm changed
> from more or less being destination-based into being quasi-random per-packet
> scheduling. This increases the risk of out-of-order packets and makes it
> impossible to use multipath together with anycast services.
Don't even try to be fancy.
Simply kill the round-robin stuff off completely, and make hash based
routing the one and only mode, no special configuration stuff
necessary.
This puts ipv4 in line with ipv6, and nobody cares about the existing
round robin behavior at all.
Thanks.
next prev parent reply other threads:[~2015-08-29 20:14 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-28 20:00 [PATCH v2 net-next 0/3] ipv4: Hash-based multipath routing pch
[not found] ` <1440792050-2109-1-git-send-email-pch-chEQUL3jiZBWk0Htik3J/w@public.gmane.org>
2015-08-28 20:00 ` [PATCH v2 net-next 1/3] ipv4: Lock-less per-packet multipath pch-chEQUL3jiZBWk0Htik3J/w
2015-08-28 20:00 ` [PATCH v2 net-next 2/3] ipv4: L3 and L4 hash-based multipath routing pch-chEQUL3jiZBWk0Htik3J/w
2015-08-30 22:48 ` Tom Herbert
2015-08-29 20:14 ` David Miller [this message]
[not found] ` <20150829.131429.360433621593751136.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2015-08-29 20:31 ` [PATCH v2 net-next 0/3] ipv4: Hash-based " Peter Nørlund
2015-08-29 20:46 ` David Miller
[not found] ` <20150829.134628.1013990034021542524.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2015-08-29 20:55 ` Scott Feldman
2015-08-29 20:59 ` Tom Herbert
2015-08-30 21:28 ` Peter Nørlund
2015-08-30 22:29 ` Tom Herbert
2015-08-31 9:02 ` Thomas Graf
2015-08-28 20:00 ` [PATCH v2 net-next 3/3] ipv4: ICMP packet inspection for L3 multipath pch
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