30 results about "Virtual routing and forwarding" patented technology

Methods and Systems are provided for a distributed Provider Edge (PE). A single Virtual Routing and Forwarding device (VRF) is associated with a single customer site. The VRF includes a single routing table (RIB) and a single forwarding table (FIB). The VRF also includes a plurality of Virtual Private Network (VPN) Protocol Instance Modules (VRP), where each VRP is associated with a different VPN from the customer site. Each VRP accesses the RIB directly and the FIB indirectly to acquiring addressing/routing information for a received data packet. Moreover, each VRP uses a data plane of the VRP to communicate the data packets to a PE backbone device. In turn, the PE backbone device uses the data plane to communicate with each of the VRPs, and the PE backbone device communicates with one or more tunnels.

An apparatus for monitoring network connectivity is disclosed. A system that incorporates teachings of the present disclosure may include, for example, a network device having a controller element to route packets to one or more locations of a virtual private network utilizing Virtual Routing and Forwarding (VRF) functionality, and route a connectivity message to a connectivity server in response to receiving a query for connectivity information. The query can be grouped with at least one other query for at least one among a border network device of a service provider and a customer network device of the virtual private network. Additional embodiments are disclosed.

The embodiment of the invention discloses a method and a device of accessing virtual private network, relates to the field of communication technologies, and is capable of enabling a single user to access a plurality of VPNs (Virtual Private Network), and satisfying requirements of route isolation and information isolation among the VPNs. The method comprises the following steps of determining the virtual private network VPN to be accessed through user equipment according to account information of the user; transmitting a configuration message to a provider edge router PE, wherein the configuration message comprises an extension field, and the extension field comprises a virtual routing and forwarding instance VRF attribute value corresponding to the VPN; receiving acknowledgement information transmitted by the PE after configuration of the PE is completed; transmitting a service message to the VPN. The invention is suitable for the virtual private network VPN.

An information handling system is provided. The information handling system includes a customer edge device coupled to a provider edge device. The customer edge device provides a default virtual routing and forwarding (VRF) instance that receives a multicast stream from the provider edge device. The information handling system also includes a plurality of host devices and a plurality of virtual local area networks (VLANs). Each of the VLANs includes at least one of the host devices and is assigned to a subscribing VRF instance, with each of the subscribing VRF instances subscribing to the default VRF instance in order to receive a copy of the multicast stream from the provider edge device. The single copy of the multicast stream is transmitted over the PE-CE link regardless of the number of subscribing VRFs.

The problem of processing an egress packet by a data forwarding device having (1) a first routing stack associated with a first namespace and a first interface, (2) a second routing stack associated with a second namespace and a second interface, wherein at least some forwarding information included in the second namespace is incompatible with the first routing stack, (3) a virtual routing and forwarding instance (VRF), and (4) a shared session layer socket associated with both the first and second routing stack, and bound to the VRF, where the VRF is associated with the second interface via the second routing stack, is solved by: adding the first interface to the VRF whereby the VRF is associated with both the first and second interfaces; and responsive to the adding of the first interface to the VRF, (1) adding routes from the second namespace to the first namespace such that network address prefixes of the second namespace are associated with a “special” next hop, and (2) flagging the shared session layer socket bound to the VRF. When an egress packet on the flagged shared session layer socket is received, the data forwarding device (1) sends the egress packet to the first routing stack for processing, (2) looks up next hop information using the first namespace of the first routing stack, and (3) determines whether or not the next hop information is a “special” next hop. Responsive to a determination that the next hop information is a “special” next hop, the data forwarding device injects the egress packet into the second routing stack for processing.

Described herein are systems, methods, and software to manage virtual routing and forwarding (VRF) in a computing environments. In one example, a management service identifies a registration or import of a route target (RT) to communicate in a VRF and identifies a first unique identifier associated with the RT. The management service further identifies a second unique identifier associated with the VRF and compares the first unique identifier to the second unique identifier. When the unique identifiers match, the management service determines that intra-VRF encryption is required for the communication. In contrast, when the unique identifiers do not match, then the management service determine that inter-VRF encryption is required for the communication.

The invention belongs to the field of data processing, and discloses a virtual routing and forwarding method, device and system. The method is used to process a virtual routing and forwarding request of an industrial edge cloud of a third-party industrial application, including: obtaining multiple industrial edges of a third-party industrial application The cloud virtual routing forwarding request, each of the industrial edge cloud virtual routing forwarding requests includes evaluation indicators; in-depth analysis and in-depth analysis and evaluation are performed on the evaluation indicators in the multiple industrial edge cloud virtual routing forwarding requests to generate industrial edge cloud virtual routing requests. The forwarding analysis result of the routing forwarding request; sending the forwarding analysis result to the local industrial edge cloud, so that the local industrial edge cloud performs virtual routing forwarding according to the forwarding analysis result and feeds back the execution result to the third-party industrial application. The present invention can reduce the forwarding delay, traffic cost and routing cost of industrial edge cloud virtual routing and forwarding for third-party industrial applications.