Server Name Indication, or SNI, is a method of virtual hosting multiple domain names for an SSL enabled virtual IP. A single VIP is advertised for multiple virtual services. When a client connects to the VIP, the Avi Load Balancer begins the SSL/ TLS negotiation, and chooses a virtual service or an SSL certificate, only when the client has requested the site by name through the domain field of the TLS hello packet. If the requested domain name is configured on the virtual IP, the appropriate certificate is returned to the client and the connection is bound to the proper virtual service.
For additional references on SNI, see:
