[OmniOS-discuss] igb0 'hangs'

[Frédéric Alix]

Perhaps iperf can help you for identify this problem.
When i have this sort of failure under Solaris, i use iperf for load
bandwidth and set different TCP window size. During the test, i use snoop
for see at what moment the problem appear come.


2014/1/20 Tobias Oetiker <tobi at oetiker.ch>

> Today Steffen Kram wrote:
>
> > Hi Tobi,
> >
> > I had a similar problem a while ago, when I was resetting the
> > maxbw property without taking the interface down.  The global
> > zone could not communicate over that interface anymore, while the
> > zones where all happy.  Taking the interface down and up again
> > solved my issue, too.
>
> hmmm ... I have not fiddled with the interface at all before ...
>
> I have now disabled HW flow-control ... maybe that helps
>
> cheers
> tobi
>
> >
> > Cheers,
> > Steffen
> >
> > Am 19.01.2014 um 17:26 schrieb Tobias Oetiker <tobi at oetiker.ch>:
> >
> > > I just had an odd thing happening to my r151008 server. It suddenly
> > > stopped communicating over its igb0 interface ...
> > >
> > > Upon further investigation I found:
> > >
> > > a) several KVM guests talking over the same physical interface were
> > >   still happily chatting
> > >
> > > b) logging into the guests and trying to reach the server over that
> > >   route did not work either.
> > >
> > > c) accessing the server via the hardware console revealed that it
> > >   was working and did not seem to realize that igb0 was having a
> > >   problem. At least dmesg did not show anyithing interesting.
> > >
> > >   once I did
> > >
> > >   # ipadm down-addr igb0/v4static
> > >   # ipadm up-addr igb0/v4static
> > >
> > >   the interface started working again ...
> > >
> > > any idea what has happened here ?
> > >
> > > cheers
> > > tobi
> > >
> > >
> > > --
> > > Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
> > > http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900
> > > _______________________________________________
> > > OmniOS-discuss mailing list
> > > OmniOS-discuss at lists.omniti.com
> > > http://lists.omniti.com/mailman/listinfo/omnios-discuss
> > >
> >
> >
>
> --
> Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
> http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900
> _______________________________________________
> OmniOS-discuss mailing list
> OmniOS-discuss at lists.omniti.com
> http://lists.omniti.com/mailman/listinfo/omnios-discuss
>
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