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Message-ID: <1438386734-1942188-5-git-send-email-tom@herbertland.com> Date: Fri, 31 Jul 2015 16:52:13 -0700 From: Tom Herbert <tom@...bertland.com> To: <davem@...emloft.net>, <netdev@...r.kernel.org> CC: <kernel-team@...com> Subject: [PATCH v2 net-next 4/5] ipv6: Disable flowlabel state ranges by default Per RFC6437 stateful flow labels (e.g. labels set by flow label manager) cannot "disturb" nodes taking part in stateless flow labels. While the ranges only reduce the flow label entropy by one bit, it is conceivable that this might bias the algorithm on some routers causing a load imbalance. For best results on the Internet we really need the full 20 bits. Signed-off-by: Tom Herbert <tom@...bertland.com> --- net/ipv6/af_inet6.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 3f0ae3a..44bb66b 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -771,7 +771,7 @@ static int __net_init inet6_net_init(struct net *net) net->ipv6.sysctl.auto_flowlabels = IP6_DEFAULT_AUTO_FLOW_LABELS; net->ipv6.sysctl.idgen_retries = 3; net->ipv6.sysctl.idgen_delay = 1 * HZ; - net->ipv6.sysctl.flowlabel_state_ranges = 1; + net->ipv6.sysctl.flowlabel_state_ranges = 0; atomic_set(&net->ipv6.fib6_sernum, 1); err = ipv6_init_mibs(net); -- 1.8.5.6 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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