Embodiments are directed towards overprovisioning IP addresses among a plurality of traffic management devices (TMDs). A plurality of IP addresses may be distributed among a plurality of available TMDs. A corresponding mirror TMD may be determined for each IP address. The corresponding mirror TMD for an IP address may be different than the available TMD currently associated with the IP address. In various embodiments, connections associated with each IP address may be mirrored at their corresponding mirror TMDs. The available TMDs may be employed to perform traffic management tasks on received packets based on at least a destination IP address of the received packets and the IP addresses associated with the available TMDs. If a TMD becomes unavailable, the IP addresses associated with the unavailable TMD may be redistributed to at least one remaining available TMD.