Dear Fujimoto,
I think the problem you mentioned occurred in my app indeed.
I will try to change my app or the topology to deal with this situation.
Thanks for your help, again.
I truly appreciate it.
Rex.
2017-07-13 10:21 GMT+08:00 Fujimoto Satoshi <satoshi.fujimo...@gmail.com>:
> Hi!
>
> I think fast-failover in s1 was succeeded.
> But, for the packet from h2 to h1,
> s4 may send it to s2, because s4 cannot notice the link between s1 and s2
> is down.
> So, the packet from h2 to h1 is dropped in s2, and ping failed.
>
> To avoid this, how about you have a link between s2 and s3?
> And put a fast-failover action to s2 so that s2 send packets to s3 if the
> link between s1 and s2 is down.
> It can be said for s5, too.
>
>
> Thanks,
> Fujimoto
>
>
> On 2017年07月13日 03:06, 陳家錡 wrote:
>
> Hi,
>
> I am trying to use mininet to test my fast failover app.
> (with Openflow 1.3, Open vSwitch 2.6.1)
>
> My testing topology is shown as follow.
>
> / 2 \ / 5 \
> h1 - 1 4 7 - h2
> \ 3 / \ 6 /
>
>
>
> It is fine when I using mininet to pingall.
> (The path is *s1-s2-s4-s5-s7*)
>
> But if I using mininet with command *link s1 s2 down*
> I think it should trigger the ff and reroute from s1-s2 to s1-s3
> However, it's not.
> (I pretty sure the rule is matched and go to the group table,
> dl_dst=00:00:00:00:00:02 actions=group:2)
>
> The following is my group table in s1.
> group_id=2,type=ff,
> bucket=watch_port:2,watch_group:2,actions=output:2,
> bucket=watch_port:3,watch_group:2,actions=output:3
>
> group_id=1,type=ff,
> bucket=watch_port:1,watch_group:1,actions=output:1
>
> How should I deal with it?
> Is mininet should set some options?
>
>
> Thanks for your help.
> I truly appreciate it.
>
> Rex.
>
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