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Re: question about heartbeat

To: ??? <conan@xxxxxxxxxxxxxxxxxxx>
Subject: Re: question about heartbeat
Cc: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
From: Lars Marowsky-Bree <lmb@xxxxxxx>
Date: Tue, 11 Jul 2000 09:04:10 +0200
On 2000-07-11T15:49:07,
   ??? <conan@xxxxxxxxxxxxxxxxxxx> said:

> I wonder the mechanism of IP takeover.
> How the packets find secondary when primary is dead ?
> I know that secondary takes the IP (which may called VIP) of the primary.
> And what next ?
> Is ARP broadcasted by secondary ? Is it done automatically or done by 
> heartbeat ?

Yes. The system sends out an unsolicited ARP reply and the other hosts on the
same ethernet segment update their arp caches.

Sincerely,
    Lars Marowsky-Brée <lmb@xxxxxxx>
    Development HA

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Perfection is our goal, excellence will be tolerated. -- J. Yahl



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