RE: [Serusers] replication and rtpproxy

Very True. We use the same UAC for all of our clients and it has an option in the configuration to force a DNS lookup every time that it sends a packet to the proxy. This does add some overhead, especially to the DNS servers, but it adds this functionality as well. Also, Its worth mentioning that your method of testing SER via SipSak and modifying the DNS entries when SER fails to respond is more efficient in that the failover is based on SER availability. This DNS load balancing technique that I posted will only work for fault tolerance if the server itself dies. If SER crashes, but bind keeps running then it won't do the job. Regards, Darren Nay -----Original Message----- From: Arnd Vehling [mailto:av@nethead.de] Sent: Thursday, February 26, 2004 3:25 PM To: Darren Nay Cc: 'Klaus Darilion'; Andres; Nils Ohlmeier; serusers(a)lists.iptel.org Subject: Re: [Serusers] replication and rtpproxy Darren Nay wrote: Sounds nice but it makes you dependant on the dns resolver implementation in every UAC on the market. In addition it may happen that caching DNS servers will not honor your expire setting of 10 Seconds and the UAC will therefore continue to contact a dead proxy. best regards, Arnd