Hi

did you know this one 
http://www.exceliance.fr/sites/default/files/biblio/appnotes_0061_lync_2010_deployment_guide_en.pdf

cheers

Thomas Heil


Am 28.08.2013 um 21:29 schrieb Ozgur Tas <o...@morrisonhershfield.com>:

> We are just using to load balance a Front-End pool in Lync 2010.
> 
> Each local Lync branch servers have one failover pool assigned, which is the 
> load balanced pool at datacenter (2 servers at datacenter).  And these two 
> front end servers is load-balanced using haproxy ( ports 80, 443, 8080, 4443 
> ).
> 
> ~~~some info:
> The following settings should be configured on your hardware load balancer to 
> properly load balance requests for Lync Web Services:
> •For internal Web Services virtual IPs (VIPs), set source_addr persistence 
> (internal port 80, 443) on the hardware load balancer. For Lync Server 2010, 
> source_addr persistence indicates that multiple connections coming from a 
> single IP address are always sent to one server to maintain session state.
> •For external Web Services virtual IPs (VIPs), set cookie-based persistence 
> on a per port basis for external ports 4443, 8080 on the hardware load 
> balancer. For Lync Server 2010, cookie-based persistence indicates that 
> multiple connections from a single client are always sent to one server to 
> maintain session state. To configure cookie-based persistence, the load 
> balancer must decrypt and re-encrypt SSL traffic. Therefore, any certificate 
> assigned to the external web service FQDN must also be assigned the 4443 VIP 
> of the hard load balancer.
> ◦Cookies must not be set to HTTP only.
> ◦Cookies must not be configured with an expiration time.
> ◦Cookies must be configured to filter on ‘MS WSMAN’.
> ◦Cookies must be set in every HTTP response for which the incoming HTTP 
> request did not have a cookie, regardless of whether a previous HTTP response 
> on that same TCP connection had already obtained a cookie. If the Load 
> Balancer optimizes cookie insert to only occur once per TCP connection, that 
> optimization MUST NOT be used.
> •If a reverse proxy is used, set the Forward host header to True in the 
> reverse proxy publishing rule for port 4443. This will ensure that the 
> original URL is forwarded to the target web server.
> ~~~
> :  
> http://blogs.technet.com/b/nexthop/archive/2011/11/03/hardware-load-balancer-requirements-for-lync-server-2010.aspx
> 
> -----Original Message-----
> From: Lukas Tribus [mailto:luky...@hotmail.com] 
> Sent: Wednesday, August 28, 2013 1:41 PM
> To: Kevin C
> Cc: haproxy@formilux.org
> Subject: RE: Load Balance individual requests
> 
>> Yes, link use SIP and HTTPS.
> 
> HAProxy can't load balance UDP based SIP.
> 
> 
> 
>> The documentation says tha HAproxy must load balance individual 
>> requests within a TCP session and make persistence with a cookie.
> 
> This implies however that HAProxy has to offload SSL. So the certificate 
> needs to be installed on the HAProxy box.
> 
> 
> Lukas                         

Reply via email to