Systems, methods, and devices that relate to reducing or minimizing session establishment delay with redundant deployment of policy control nodes are disclosed. In one example aspect, a method for wireless communication includes receiving, by a first communication node configured to provide policy control in a communication network, a request for establishing a communication session with a mobile device. The method also includes determining, by the first communication node, that a failure has occurred between the first communication node and a second communication node for establishing the communication session, and transmitting, by the first communication node, a notification to a third communication node indicating information about the failure.