Abstract:
A source IPv6 mobile node is configured for forwarding an IPv6 packet via an IPv4 connection with a destination IPv6 router. The IPv4 packet includes IPv4 source and destination addresses, a UDP source port and UDP destination port, and a synthetic tag address in the IPv6 destination address field. The synthetic tag address, a valid (routable) IPv6 care of address, has an address prefix routed to the IPv6 router. The address prefix specifies a forwarding protocol, the IPv4 destination address for the IPv6 router, and a site-level aggregation identifier. An address suffix for the synthetic tag address specifies the IPv4 source address, the UDP source port and UDP destination port. Hence, the synthetic tag address enables the destination IPv6 router to send an IPv6 reply packet back to the source IPv6 mobile node via the IPv4 network.
Abstract:
This disclosure describes techniques for authenticating a user device for a session. For instance, an authentication entity may authenticate a user device using single sign-on authentication and/or multi-factor authentication. The authentication entity may then determine a duration for which the user device is authenticated for the session. For example, the authentication entity may receive information representing a state of an environment of the user device. The authentication entity may then use the information to identify one or more transitions associated with the environment between the session and a previous session. Using the one or more transitions, the authentication entity may determine the duration for the session by increasing or decreasing a previous duration associated with the previous session.
Abstract:
Disclosed are systems, methods, and computer-readable media for integrating deterministic packet transmissions scheduling of short range local area networks (e.g., 6TiSCH networks) with deterministic packet transmission scheduling for wireless networks such as LTE/4G/5G networks. In one aspect, a wireless communication network includes a plurality of first nodes configured to communicate using a first communication protocol; and a second node configured to communicate with the plurality of first nodes using the first communication protocol and configured to communicate with a third node using a second communication protocol, the second node being further configured to map corresponding transmission schedule of the first communication protocol to a second transmission schedule for the second communication protocol.
Abstract:
In one embodiment, a first node in a network receives one or more bitmaps from one or more child nodes of the first node according to a directed acyclic graph (DAG) as used by RPL, the IPv6 Routing Protocol for Low-power and lossy networks (LLNs). Each of the one or more child nodes is associated with a corresponding unique bit position in the one or more bitmaps. The first node stores, in a forwarding table, the one or more bitmaps received from the one or more child nodes of the first node. The first node receives a message that includes a destination bitmap that identifies one or more destinations of the message via one or more set bits at bit positions associated with the one or more child nodes. The first node forwards the message towards the identified one or more destinations based on the destination bitmap and the one or more bitmaps stored in the forwarding table of the first node. Aggregating node bitmaps by OR operation with the bitmaps of their children allows to spare resources in nodes of LLNs; forwarding to the destination can be easily performed via AND operation on bitmaps. Deciding unicast or broadcast forwarding based on the density of interested children saves energy by optimally avoiding awaking of nodes.
Abstract:
In one embodiment, a device determines that a latency between a receive timeslot of a channel hopping schedule of the device and a transmit timeslot of the channel hopping schedule is greater than a latency threshold for a particular traffic flow to be received during the receive timeslot. The device requests an additional transmit timeslot for the channel hopping schedule from a parent node of the device in the network. The device receives an indication of a newly allocated transmit timeslot for the channel hopping schedule from the parent node. The device maps the receive timeslot to one of the transmit timeslots of the channel hopping schedule, wherein the particular traffic flow is to be forwarded to a second device during the mapped transmit timeslot.
Abstract:
In one embodiment, a method comprises receiving, by an apparatus, a Media Access Control (MAC) frame destined for a destination device; dividing, by the apparatus, the MAC frame into frame fragments; coding the frame fragments into encoded cells; and causing, by the apparatus, transmission of selected subsets of the encoded cells, as distinct flows of the encoded cells, by respective optical physical layer transmitter devices reachable by the destination device.
Abstract:
In one embodiment, a device (e.g., path computation device) informs a network management device of a plurality of possible probing profiles, where nodes of a computer network receive the plurality of possible probing profiles from the network management device. Based on determining that particular information is desired from one or more particular nodes of the nodes of the computer network, the device may then select one or more particular probing profiles of the plurality of possible probing profiles based on the particular information, and instructs the one or more particular nodes to probe one or more particular destination nodes according to the one or more particular probing profiles.
Abstract:
In one embodiment, a method comprises identifying an age of payload data in a data packet by a wireless network node configured for transmitting the data packet to a multi-hop destination via a wireless mesh network; determining by the wireless network node a schedule for the data packet reaching the multi-hop destination; and the wireless network node prioritizing queuing of the data packet for Collision Sense with Multiple Access and Collision Avoidance (CSMA-CA) based wireless transmission in the wireless mesh network based on the corresponding age, relative to the schedule and respective ages of other data packets awaiting transmission by the wireless network node to the destination, where a higher-aged data packet relative to the schedule is granted have a higher priority than a lower-aged data packet relative to the schedule.
Abstract:
In one embodiment, a method comprises receiving, by a router in a network, a router advertisement message on a network link of the network; detecting within the router advertisement message, by the router, an advertised address prefix and an identified router having transmitted the router advertisement message within the network; determining, by the router, whether the identified router is authorized to at least one of advertise itself as a router, or advertise the advertised address prefix on the network link; and selecitvely initiating, by the router, a defensive operation against the identified router based on the router determining the identified router is not authorized to advertise itself as a router, or advertise the advertised address prefix on the network link.
Abstract:
In one embodiment, a mobile router receives a multicast-supported router advertisement message from an attachment mobile router in a mobile ad hoc network, the multicast-supported router advertisement message specifying an attachment prefix and a multicast-capable identifier. The mobile router attaches to the attachment mobile router in response to the multicast-supported router advertisement message and according to a protocol requiring establishment in the mobile ad hoc network of a tree topology having a single multicast clusterhead, and selects a default attachment address within an address space of the attachment prefix. The mobile router receives a multicast request, from an attached node, for receiving a multicast stream, and the mobile router outputs a neighbor advertisement message with multicast extension, to the attachment router, that specifies that access to the multicast stream is requested via the default attachment address.