公开(公告)号：US11425022B1

公开(公告)日：2022-08-23

申请号：US16779426

申请日：2020-01-31

Applicant: Juniper Networks, Inc.

Inventor： Ravi Singh ,  Yimin Shen ,  Junan Chen ,  Shraddha Hegde ,  Ahmed R. Darwish

IPC: H04L45/00 ,  H04L45/02 ,  H04L12/46 ,  H04L69/00 ,  H04L41/12 ,  H04L61/251

Abstract: Techniques are disclosed for service-based tunnel selection for forwarding network traffic. In one example, a network device obtains, based on service parameters associated with a network service, a service-specific tunnel selection scheme. The tunnel selection scheme identifies a primary mapping mode for mapping the network service to a primary transport tunnel and fallback mapping modes for mapping the network service to fallback transport tunnels. The primary mapping mode is categorized according to a first type comprising tunnel colorization, while the fallback mapping modes are categorized according to types other than tunnel colorization. In response to determining that the network service cannot be mapped to the primary transport tunnel according to the primary mapping mode, the network device, maps, based on the fallback mapping modes, the network service to the fallback transport tunnels. The network device forwards network traffic associated with the network service via the fallback transport tunnels.

公开(公告)号：US11190461B2

公开(公告)日：2021-11-30

申请号：US16588387

申请日：2019-09-30

Applicant: Juniper Networks, Inc.

Inventor： Ravi Singh ,  Junan Chen

IPC: H04L12/937 ,  H04L12/851 ,  H04L29/06

Abstract: This disclosure is related to devices, systems, and techniques for controlling a flow of network traffic between two or more devices. For example, a network device includes a control unit, a forwarding unit including a forwarding manager including a server configured to store a tunnel hierarchy structure, and a packet processor. The packet processor is configured to receive, via an interface card of a set of interface cards, a packet including a packet header. The forwarding manager is configured to parse the packet header in order to identify a service corresponding to the packet, wherein the service is associated with a service color, identify, based on the tunnel hierarchy structure, a set of tunnels, wherein each tunnel of the set of tunnels is associated with a tunnel color, and determine whether at least one tunnel of a set of tunnels associated with the tunnel color is in an online state.

公开(公告)号：US20210099401A1

公开(公告)日：2021-04-01

申请号：US16588387

申请日：2019-09-30

Applicant: Juniper Networks, Inc.

Inventor： Ravi Singh ,  Junan Chen

IPC: H04L12/937 ,  H04L12/851 ,  H04L29/06

Abstract: This disclosure is related to devices, systems, and techniques for controlling a flow of network traffic between two or more devices. For example, a network device includes a control unit, a forwarding unit including a forwarding manager including a server configured to store a tunnel hierarchy structure, and a packet processor. The packet processor is configured to receive, via an interface card of a set of interface cards, a packet including a packet header. The forwarding manager is configured to parse the packet header in order to identify a service corresponding to the packet, wherein the service is associated with a service color, identify, based on the tunnel hierarchy structure, a set of tunnels, wherein each tunnel of the set of tunnels is associated with a tunnel color, and determine whether at least one tunnel of a set of tunnels associated with the tunnel color is in an online state.