Abstract: For a communication channel having a first endpoint in a customer on-premise network and a second endpoint on a primary host machine in a cloud service provider infrastructure, the primary host machine determines a change in a state information of the communication channel and identifies a backup host machine for the communication channel. The primary host machine causes the change in the state information to be replicated to the backup host machine, wherein the replicated state information stored by the backup host machine is usable by the backup host machine after a failover causes the backup host machine to become the second endpoint of the communication channel.

Abstract: A redirector (RD) in a cloud hosted data center receives a packet originating from a source device in an on-premises data center. The packet is directed to a destination IP address associated with a router located in the cloud hosted data center. A destination address field in a header of the packet is set to the destination IP address. The RD determines whether the packet is to be forwarded to the router or to a host machine implementing a service host that implements a tunnel end-point in a VCN. Responsive to determining that the packet is to be forwarded to the host machine: the RD sets the destination address field to an address associated with the service host, and forwards the packet to the host machine. Responsive to determining that the packet is to be forwarded to the router, the RD forwards the packet to the router.

Abstract: A host machine implementing a service host that implements a set of one or more tunnel-endpoints (TEPs) is provided a first connection from a first customer premise equipment (CPE) in a first on-premises data center of a first customer, the first connection terminating at a first TEP of the set of one or more TEPs. The first TEP receives a first packet over the first connection, and adds a first label to the first packet. The first packet with the first label is forwarded to a direct-attached virtual network interface card (DAV) associated with the service host. The DAV modifies a header of the first packet, and responsive to the modifying, switches the first packet to a virtual cloud network (VCN) of the first customer.

Abstract: For a communication channel having a first endpoint in a customer on-premise network and a second endpoint on a primary host machine in a cloud service provider infrastructure, the primary host machine determines a change in a state information of the communication channel and identifies a backup host machine for the communication channel. The primary host machine causes the change in the state information to be replicated to the backup host machine, wherein the replicated state information stored by the backup host machine is usable by the backup host machine after a failover causes the backup host machine to become the second endpoint of the communication channel.