<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><br><div><div>On 28 Dec 2014, at 09:25, Mahmoud Ramadan Ali <<a href="mailto:cisco.and.more.blog@gmail.com">cisco.and.more.blog@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;">In addition, you can work with virtual IPs with Heartbeat/Pacemaker.</span><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"></blockquote></div><br><div>Carsten is completely right, the primary alternative is using DNS SRV records for load balancing</div><div>and failover.</div><div><br></div><div>The only issue is if you have NAT clients that lock to a single IP. In that case, you may want to</div><div>look into IP failover.</div><div><br></div><div>For more information about DNS SRV and NAPTR you can take a look at my presentation</div><div>about SIP and DNS on Slideshare:</div><div><a href="http://www.slideshare.net/oej/sip-and-dns">http://www.slideshare.net/oej/sip-and-dns</a></div><div><br></div><div>/O</div></body></html>