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

Hi Freek,

On 06/04/2012 12:29, D'Hooge Freek wrote:
> How can you assign a different vlan on network ports that are part of the 
> same bond?
> I would think this would break your bonding, meaning you tested on a bond 
> that has only 1 working network port to begin with.

Correct. It was exactly that - a totally miss-configured bonding.  It 
was due to a misunderstanding between
the sysadmin group and the dba group that provided the installation 
requirements.
We noticed that error during the HA tests ...

> The reason why you need to use separate subnets when using HAIP with multiple 
> nics is the os routing. When you have multiple ip addresses in the same 
> subnet on a server, it is the routing table which determines the interface to 
> be used for outgoing traffic.
> If that interface fails, the routing table will not be changed and thus all 
> communications break.
>
> This is also the reason why one should not use ifdown to test network 
> failures.
> It does things to cleanly, like removing the entry for that interface from 
> the routing table.

Thanks for the explanation!


Best regards
Dimitre
--
http://www.freelists.org/webpage/oracle-l

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