Re: RAC private network IP's - 169.254.x.x
Date: Fri, 06 Apr 2012 10:16:55 +0200
Message-ID: <4F7EA677.6060003_at_gmail.com>
Just to add that I noticed that the subnet 169.254.*.* will be used even if you define a single interface for the interconnect.
Dimitre
On 06/04/2012 10:10, Radoulov, Dimitre wrote:
>
> 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. .
>
>
> 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-lReceived on Fri Apr 06 2012 - 03:16:55 CDT