Session persistence for forwarders
Session persistence for forwarders:
Where Bind is configured to use forwarding extensively or exclusively and the environment in which it is located precludes the use of udp as a transport protocol.
It may enhance throughput and limit resources utilisation if tcp sessions could be made persistent to some configurable degree. Bind would need to be able to discover if there was an existing tcp session that could be (re)used when it needs to forward queries to some well known source.