Abstract:
Aspects of the subject disclosure may include, for example, specification of network service functions (e.g., a firewall or network address translation appliance) to be included in a service function path. Routers in a communication network may publish information regarding reachable network service functions and an API may be exposed that provides the information regarding the reachable network service functions. Other embodiments are disclosed.
Abstract:
A system in which a mapping function specific to a given provider edge may provide value added services. Said provider edge already uses label distribution protocol, resource reservation protocol, or the like.
Abstract:
Aspects of the subject disclosure may include, for example, instantiating a virtual provider edge router (VPE) of a network operator on a layer 3 public cloud network operated by a cloud operator, establishing a virtual layer 2 bridging domain over the layer 3 public cloud network between a core network of the network operator and the VPE, wherein the virtual layer 2 bridging domain shields infrastructure addressing of the core network of the network operator, and establishing an Interior Gateway Protocol (IGP) of the network operator on top of the virtual layer 2 bridging domain for layer 2 communication between the core network of the network operator and the VPE over the layer 3 public cloud network. Other embodiments are disclosed.
Abstract:
Methods, apparatus, systems and articles of manufacture to reflect routes from a virtual route reflector are disclosed. An example method includes requesting, at a virtual route reflector remote from an autonomous system, topology information and external route information from the autonomous system. The external route information identifies a plurality of border routers through which a remote destination can be reached. The example method also includes selecting, using the topology information, a first path from among a plurality of paths emanating from a selected node in the autonomous system, the plurality of paths exiting the autonomous system at respective border routers of the plurality of border routers. The example method further includes advertising, from the virtual route reflector to a client router in the autonomous system, a route to the remote destination, the route including a first border router at which the first path exits the autonomous system.
Abstract:
Methods and systems may use a software-defined network (SDN) based approach for interworking different types of nodes. In an example, an SDN controller may include components that assist in building pseudowires across Ethernet virtual private network (EVPN) nodes and Border gateway protocol-virtual private local area network (LAN) service (BGP-VPLS) nodes.
Abstract:
Methods and systems associated with fabric tunnels may assist in traffic flow through a tunnel that aggregates a plurality of virtual local area networks across a core network.
Abstract:
A system includes a first regional network including a first network element; a second regional network including a virtualized control plane network element, the virtualized control plane network element supporting a routing protocol at the first regional network, the routing protocol employing a location-based cost model; and a network connection connecting the virtualized control plane network element to the first regional network, the network connection having a network connection cost, the network connection cost applied in the location-based cost model to support the routing protocol at the first regional network.
Abstract:
Methods and apparatus to utilize route parameter sets for exchanging routes in a communication network are disclosed. An example method to exchange routes in a communication network disclosed herein comprises receiving a route comprising a route identifier identifying the route and a plurality of route parameter values characterizing the route, and sending the route identifier and a pointer to forward the route to a recipient in the communication network, the pointer being associated with a route parameter set comprising the plurality of route parameter values.
Abstract:
Methods and apparatus to determine an alternate route in a network are disclosed. Example methods disclosed herein include processing a label stack of a data packet at a first node to determine whether the data packet is undergoing alternative routing to a destination. Such example methods also include, in response to determining that the data packet is undergoing alternative routing, processing the label stack to determine multiplicity values for neighbor nodes of the first node, respective ones of the multiplicity values representing respective numbers of times the data packet has been routed to respective ones of the neighbor nodes while undergoing alternative routing to the destination. Such example methods further include updating the label stack to increase a respective multiplicity value associated with the first node prior to routing the data packet from the first node to a first one of the neighbor nodes selected based on the multiplicity values.
Abstract:
Methods and apparatus to determine an alternate route in a network are disclosed. Example methods disclosed herein include processing a label stack of a data packet at a first node to determine whether the data packet is undergoing alternative routing to a destination. Such example methods also include, in response to determining that the data packet is undergoing alternative routing, processing the label stack to determine multiplicity values for neighbor nodes of the first node, respective ones of the multiplicity values representing respective numbers of times the data packet has been routed to respective ones of the neighbor nodes while undergoing alternative routing to the destination. Such example methods further include updating the label stack to increase a respective multiplicity value associated with the first node prior to routing the data packet from the first node to a first one of the neighbor nodes selected based on the multiplicity values.