RE: RAC private network IP's - 169.254.x.x

From: D'Hooge Freek <Freek.DHooge_at_uptime.be>
Date: Fri, 6 Apr 2012 15:05:22 +0200
Message-ID: <4814386347E41145AAE79139EAA398981CBE5CD66B_at_ws03-exch07.iconos.be>

and to: http://docs.oracle.com/cd/E11882_01/relnotes.112/e23558/toc.htm#CJAFGABG  

Freek D'Hooge
Uptime
Oracle Database Administrator
email: freek.dhooge_at_uptime.be
tel +32(0)3 451 23 82
http://www.uptime.be
disclaimer: www.uptime.be/disclaimer

-----Original Message-----
From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of goran bogdanovic Sent: vrijdag 6 april 2012 11:25
To: cichomitiko_at_gmail.com
Cc: krishna.setwin_at_gmail.com; oracle-l Subject: Re: RAC private network IP's - 169.254.x.x

pay attention on

*
*
*Bug 10389682: HAIP INTERCONNECT DOES NOT WORK IF IP ADDRESSES ARE IN THE

SAME SUBNET*
if you use more than one NIC for interconnect ...

goran

On Fri, Apr 6, 2012 at 10:10 AM, Radoulov, Dimitre <cichomitiko_at_gmail.com>wrote:

> Hi Krishna,
> as already stated, the 169.254.*.* is used by GI automatically:
>
> 11gR2 Grid Infrastructure Redundant Interconnect and
> ora.cluster_interconnect.haip [ID 1210883.1]
>
> Grid automatically picks free link local addresses from reserved
> 169.254.*.* subnet for HAIP. According to RFC-3927, link local subnet
> 169.254.*.* should not be used for any other purpose. With HAIP, by
> default, interconnect traffic will be load balanced across all active
> interconnect interfaces, and corresponding HAIP address will be failed
> over transparently to other adapters if one fails or becomes
> non-communicative. .
>
>
> Dimitre
>
>
> On 06/04/2012 09:57, D'Hooge Freek wrote:
> > I think the 169.254.0.0/16 subnet is used for autoconfiguration ip
> addresses.
> > Which are addresses that are self assigned after verifying that no one
> else is using it by sending out an arp ping (for instance, in case when the
> dhcp server is not giving out an address).
> >
> > You should not use them when statistically assigning an ip address.
> >
> > Oracle is using ip addresses in this range for the private network as
> part of the high available ip address (HAIP) functionality (which is also
> the reason multicast's must be allowed between the different nodes).
> >
> [...]
> > Can we use 169.254.1.11& 169.254.1.12 as private IP's for RAC 2 node
> > cluster?
> > (basically any 169.254.x.x )
> >
> > we just have 1 private NIC for each node.
> >
> > version: 11.2.0.3 rac
> > RHEL 5.8
> >
>
>
> --
> http://www.freelists.org/webpage/oracle-l
>
>
>

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Received on Fri Apr 06 2012 - 08:05:22 CDT