A packet processing method and a network device in a hybrid access network. The method comprises sending, by a first network device, a first data packet in a first sending window to a second network device by using a first tunnel. In response to receiving a first acknowledgement response sent by the second network device, increasing, by the first network device, a size of the first sending window based on a first proportion. In response to not receiving, within a first predetermined time, the first acknowledgement response, decreasing the size of the first sending window based on a second proportion; and in response to determining that the size of the first sending window is greater than or equal to a first threshold, sending a second data packet to a second receiving window of the second network device by using a second sending window.

Methods and apparatus for low latency operation in user space networking architectures. In one embodiment, an apparatus configured to enable low latency data transfer is disclosed. The exemplary embodiment provides a multiplexer that allocates a fixed portion of network bandwidth for low latency traffic. Low latency traffic is routed without the benefit of general-purpose packet processing. In one embodiment, network extensions for low latency operations are described. Specifically, an agent is described that enables low latency applications to negotiate for low latency access. In one embodiment, mechanisms for providing channel event notifications are described. Channel event notifications enable corrective action/packet processing by the low latency application. In one embodiment, mechanisms for providing interface advisory information are described. Interface advisory information may be provided asynchronously to assist in low latency operation.

Systems and methods described herein provide for assigning classifications to signals and corresponding messages for prioritization and transmission across a vehicle CAN bus. The assigned classifications are used to prioritize messages, signals, and nodes of the vehicle CAN bus. The classifications are used to prioritize critical messages and high priority messages that control operations of the vehicle system.

Systems and methods described herein provide for assigning classifications to signals and corresponding messages for prioritization and transmission across a vehicle CAN bus. The assigned classifications are used to prioritize messages, signals, and nodes of the vehicle CAN bus. The classifications are used to prioritize critical messages and high priority messages that control operations of the vehicle system.

Methods and apparatus for low latency operation in user space networking architectures. In one embodiment, an apparatus configured to enable low latency data transfer is disclosed. The exemplary embodiment provides a multiplexer that allocates a fixed portion of network bandwidth for low latency traffic. Low latency traffic is routed without the benefit of general-purpose packet processing. In one embodiment, network extensions for low latency operations are described. Specifically, an agent is described that enables low latency applications to negotiate for low latency access. In one embodiment, mechanisms for providing channel event notifications are described. Channel event notifications enable corrective action/packet processing by the low latency application. In one embodiment, mechanisms for providing interface advisory information are described. Interface advisory information may be provided asynchronously to assist in low latency operation.

A packet processing method and a network device in a hybrid access network. The method comprises sending, by a first network device, a first data packet in a first sending window to a second network device by using a first tunnel. In response to receiving a first acknowledgement response sent by the second network device, increasing, by the first network device, a size of the first sending window based on a first proportion. In response to not receiving, within a first predetermined time, the first acknowledgement response, decreasing the size of the first sending window based on a second proportion; and in response to determining that the size of the first sending window is greater than or equal to a first threshold, sending a second data packet to a second receiving window of the second network device by using a second sending window.

A packet processing method and a network device in a hybrid access network. The method comprises sending, by a first network device, a first data packet in a first sending window to a second network device by using a first tunnel. In response to receiving a first acknowledgement response sent by the second network device, increasing, by the first network device, a size of the first sending window based on a first proportion. In response to not receiving, within a first predetermined time, the first acknowledgement response, decreasing the size of the first sending window based on a second proportion; and in response to determining that the size of the first sending window is greater than or equal to a first threshold, sending a second data packet to a second receiving window of the second network device by using a second sending window.

A packet processing method and a network device in a hybrid access network. The method comprises sending, by a first network device, a first data packet in a first sending window to a second network device by using a first tunnel. In response to receiving a first acknowledgement response sent by the second network device, increasing, by the first network device, a size of the first sending window based on a first proportion. In response to not receiving, within a first predetermined time, the first acknowledgement response, decreasing the size of the first sending window based on a second proportion; and in response to determining that the size of the first sending window is greater than or equal to a first threshold, sending a second data packet to a second receiving window of the second network device by using a second sending window.

Priority of a route, which carries a virtual extensible local area network (VXLAN) tunneling end point (VTEP) Internet protocol (IP) address of a port of a VXLAN tunnel corresponding to a first VXLAN IP GW to be migrated, is lowered. The route is then released to a VTEP at peer end of the VXLAN tunnel. Priority of a static route destined for a virtual machine (VM) is also lowered. The static route is then released to a network device in a non-virtual network. At least two VXLAN IP GWs possess a same VTEP IP address of a port of a VXLAN tunnel. Before priority of route corresponding to first VXLAN IP GW is lowered, priority of route carrying the same VTEP IP address released by each of at least two VXLAN IP GWs is same. Priority of static route from each of at least two VXLAN IP GWs to the VM is same. When controller monitors no data flow between VM and network device in the non-virtual network passes the first VXLAN IP GW, migration actions may be executed.

Priority of a route, which carries a virtual extensible local area network (VXLAN) tunneling end point (VTEP) Internet protocol (IP) address of a port of a VXLAN tunnel corresponding to a first VXLAN IP GW to be migrated, is lowered. The route is then released to a VTEP at peer end of the VXLAN tunnel. Priority of a static route destined for a virtual machine (VM) is also lowered. The static route is then released to a network device in a non-virtual network. At least two VXLAN IP GWs possess a same VTEP IP address of a port of a VXLAN tunnel. Before priority of route corresponding to first VXLAN IP GW is lowered, priority of route carrying the same VTEP IP address released by each of at least two VXLAN IP GWs is same. Priority of static route from each of at least two VXLAN IP GWs to the VM is same. When controller monitors no data flow between VM and network device in the non-virtual network passes the first VXLAN IP GW, migration actions may be executed.