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@xxxxxxxxx>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 > > > > > -- > //www.freelists.org/webpage/oracle-l > > > -- //www.freelists.org/webpage/oracle-l