<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On 21/06/2013, at 4:28 AM, Dan Williams wrote:</div><blockquote type="cite"><div><font class="Apple-style-span" color="#000000"><br></font>It's supported that for 4 or 5 years. You don't need aliases at all,<br></div></blockquote><br></div><div>Consider an anycast service where the alias interface reflects the availability of the service on the server. An OSPF or BGP daemon then advertises the address of the alias interface into the network.</div><div><br></div><div>You want to be able to up/down the alias interface independently of the other addressing on the physical interface. You don't want to remove the addressing -- from a the routing daemon's point of view there's a considerable difference between no addressing (an error) and down (a state).</div><div><br></div><div>And sure, this isn't a common desktop scenario. But as NetworkManager makes its way into servers...</div><br><div>-glen</div></body></html>