Refer to the sections below for settings when using a DNS only configuration.

Microsoft recommends that DNS load balancing is used for Session Initiation Protocol (SIP) traffic. Microsoft also recommend that web services are configured to override FQDN for internal web services.

Source-IP Persistence

Source IP persistence can be used but take care before enabling it because:

  • Clients from behind a NAT device show up as a single IP
  • It can result in uneven connection distribution

Cookies

If cookies are used, there is no negative impact. However, there are some requirements:

  • The cookie must be named MS-WSMAN
  • It must not expire
  • It must not be marked httpOnly
  • Cookie optimization should be turned off

To find out the recommended API parameter settings for the various Front-End Virtual Services, refer to the sections below.