Systems and methods for server and switch failover in a black core network

Abstract

A black core network system and method, wherein the system includes a ciphertext network, a server having a bonding module and a plurality of network interfaces, a plurality of encryptor devices and one or more routers, wherein each router is connected through one or more of the server network interfaces to the server and through one or more encryptor devices to the ciphertext network. The server establishes, in the bonding module, a server gateway for each server network interface, selects a first network interface as primary link and a second server network interface as backup link, and sends routing metric information out through the primary link and the backup link, wherein sending includes sending metric information indicating that the cost of routing through the primary link is less than the cost of routing through the backup link. When the server receives, from one of the one or more routers, an indication that there is a link failure on the primary link, the server manipulates the server gateway for the second server network interface to direct traffic for the primary link out the second server network interface, wherein the second link becomes the new primary link and the server sends routing metric information out through the new primary link to the second router.