From: Nicolas Dichtel <nicolas.dichtel@6wind•com>
To: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6•org>
Cc: bernat@luffy•cx, netdev@vger•kernel.org, davem@davemloft•net
Subject: Re: [RFC PATCH net-next 1/1] ipv6: add support of ECMP
Date: Wed, 12 Sep 2012 11:53:51 +0200 [thread overview]
Message-ID: <50505BAF.6080507@6wind.com> (raw)
In-Reply-To: <505058F5.9020707@linux-ipv6.org>
Le 12/09/2012 11:42, YOSHIFUJI Hideaki a écrit :
> Hello.
>
> YOSHIFUJI Hideaki wrote:
>> Hello.
>>
>> Nicolas Dichtel wrote:
>>> This patch adds the support of equal cost multipath for IPv6.
>>>
>>> The patch is based on a previous work from
>>> Luc Saillard <luc.saillard@6wind•com>.
>>>
>>> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind•com>
>> :
>>> +config IPV6_MULTIPATH
>>> + bool "IPv6: equal cost multipath for IPv6 routing"
>>> + depends on IPV6
>>> + default y
>>> + ---help---
>>> + Enable this option to support ECMP for IPv6.
>>> + If unsure, say N.
>>> +
>>> +choice
>>> + prompt "IPv6: choose Multipath algorithm"
>>> + depends on IPV6_MULTIPATH
>>> + default IPV6_MULTIPATH_ROUTE
>>> + ---help---
>>> + Define the method to select route between each possible path.
>>> +
>>> + config IPV6_MULTIPATH_ROUTE
>>> + bool "IPv6: MULTIPATH flow algorithm"
>>> + ---help---
>>> + Multipath routes are chosen according to hash of packet header to
>>> + ensure a flow keeps the same route.
>>> +
>>> + config IPV6_MULTIPATH_RR
>>> + bool "IPv6: MULTIPATH round robin algorithm"
>>> + ---help---
>>> + Multipath routes are chosen according to Round Robin.
>>> +
>>> + config IPV6_MULTIPATH_RANDOM
>>> + bool "IPv6: MULTIPATH random algorithm"
>>> + ---help---
>>> + Multipath routes are chosen in a random fashion.
>>> +endchoice
>>
>> We should use hash-based algorithm by default,
>> according to RFC4311. See also RFC6438.
>
> Sorry, I missed something and misunderstood.
>
>
> I prefer "HASH" of "FLOW" instead of "ROUTE"
> because it select route by "hash" or "flow"
> (as other options mean; by "round-robin"(RR) or by "random"(RANDOM)).
Ok.
>
> And, please clearly specify that it is the recommended
> the default and recommended algorithm.
> (We may have references to RFCs.)
Ok.
>
> Default is "y" but description says "if unsure, say N."
> This is not good.
Yes, good catch.
>
>
> Of course, we may want to take "flow label" into account
> when calculating hash (RFC6438).
Ok, I will add it. I wait for others comments.
Regards,
Nicolas
next prev parent reply other threads:[~2012-09-12 9:53 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-06 17:30 IPv6 multipath routes Vincent Bernat
2012-09-06 17:30 ` [PATCH] Fix "ip -6 route add ... nexthop" Vincent Bernat
2012-09-06 17:53 ` Vincent Bernat
2012-09-12 8:29 ` [RFC PATCH net-next 0/1] Add support of ECMPv6 Nicolas Dichtel
2012-09-12 8:29 ` [RFC PATCH net-next 1/1] ipv6: add support of ECMP Nicolas Dichtel
2012-09-12 8:48 ` YOSHIFUJI Hideaki
2012-09-12 9:42 ` YOSHIFUJI Hideaki
2012-09-12 9:53 ` Nicolas Dichtel [this message]
2012-09-14 7:59 ` [RFC PATCH net-next v2 0/1] Add support of ECMPv6 Nicolas Dichtel
2012-09-14 7:59 ` [RFC PATCH net-next v2 1/1] ipv6: add support of ECMP Nicolas Dichtel
2012-09-14 9:40 ` [RFC PATCH net-next v2 0/1] Add support of ECMPv6 Vincent Bernat
2012-09-14 13:35 ` Nicolas Dichtel
2012-09-14 13:37 ` Nicolas Dichtel
2012-10-15 12:36 ` Vincent Bernat
2012-10-15 19:54 ` Vincent Bernat
2012-09-19 9:18 ` [PATCH net-next v3 " Nicolas Dichtel
2012-09-19 9:18 ` [PATCH net-next v3 1/1] ipv6: add support of ECMP Nicolas Dichtel
2012-09-20 21:15 ` David Miller
2012-09-21 9:59 ` [PATCH net-next v4 0/1] Add support of ECMPv6 Nicolas Dichtel
2012-09-21 9:59 ` [PATCH net-next v4 1/1] ipv6: add support of ECMP Nicolas Dichtel
2012-09-21 17:48 ` [PATCH net-next v4 0/1] Add support of ECMPv6 David Miller
2012-09-24 12:28 ` Nicolas Dichtel
2012-10-01 13:56 ` [PATCH net-next v5 " Nicolas Dichtel
2012-10-01 13:56 ` [PATCH net-next v5 1/1] ipv6: add support of ECMP Nicolas Dichtel
2012-10-01 16:47 ` Joe Perches
2012-10-02 16:02 ` [PATCH net-next v6 0/1] Add support of ECMPv6 Nicolas Dichtel
2012-10-02 16:02 ` [PATCH net-next v6 1/1] ipv6: add support of equal cost multipath (ECMP) Nicolas Dichtel
2012-10-02 16:06 ` Nicolas Dichtel
2012-10-02 16:14 ` Eric Dumazet
2012-10-19 9:13 ` [PATCH net-next v7 0/1] Add support of ECMPv6 nicolas.dichtel
2012-10-19 9:13 ` [PATCH net-next v7 1/1] ipv6: add support of equal cost multipath (ECMP) nicolas.dichtel
2012-10-22 0:41 ` David Miller
2012-10-22 13:42 ` [PATCH net-next v8 0/1] Add support of ECMPv6 nicolas.dichtel
2012-10-22 13:42 ` [PATCH net-next v8 1/1] ipv6: add support of equal cost multipath (ECMP) nicolas.dichtel
2012-10-23 6:39 ` David Miller
2012-10-23 12:42 ` [PATCH iproute2 1/2] ip: fix "ip -6 route add ... nexthop" Nicolas Dichtel
2012-10-23 12:42 ` [PATCH iproute2 2/2] ip: remove NLM_F_EXCL in case of ECMPv6 routes Nicolas Dichtel
2012-10-25 16:06 ` Stephen Hemminger
2012-10-25 16:20 ` Nicolas Dichtel
2012-10-25 16:25 ` Stephen Hemminger
2012-10-25 16:48 ` Nicolas Dichtel
2012-11-02 8:58 ` [RESEND PATCH net-next] ipv6/multipath: remove flag NLM_F_EXCL after the first nexthop Nicolas Dichtel
2012-11-03 1:38 ` David Miller
2012-11-05 8:30 ` Nicolas Dichtel
2012-10-25 16:08 ` [PATCH iproute2 1/2] ip: fix "ip -6 route add ... nexthop" Stephen Hemminger
2012-10-02 18:43 ` [PATCH net-next v6 1/1] ipv6: add support of equal cost multipath (ECMP) David Miller
2012-09-11 12:57 ` IPv6 multipath routes Ulrich Weber
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