Abstract:
Methods, systems and apparatus are provided which prevent frame mis-ordering in an explicitly routed network when switching from a first path to a second path. In a first embodiment, last frame and first frame markers are transmitted, and a receiver buffers all frames received between receipt of the last frame marker and the first frame marker. In a second embodiment, a last frame marker is sent to which an acknowledgement must be received before transmitting on the second path. In a third embodiment, only a first frame marker is sent. The receiver, upon receipt, signals a network card for the first path to stop forwarding frames, also buffers frames for some period. In a fourth embodiment, the merge point node forwards frames over different paths with unique markings so the outgoing card can distinguish them.
Abstract:
A method of transmitting/receiving a frame between a portable terminal and a base station in a wireless broadband Internet network are provided. More particularly, a method of transmitting/receiving frames can include activating a session between the portable terminal and the base station, removing at least one header information field included in an Internet protocol (IP) datagram after activating the session, adding a network header which sets a predetermined transport connection identifier (TCID) to the IP datagram, generating the frame, and transmitting the generated frame via the activated session. Preferably, the frame is generated in any one of the portable terminal and the base station, and transmitted to the other one of the portable terminal and the base station.
Abstract:
Cascaded policing methods and systems are provided which allow lower priority traffic to benefit from otherwise unused capacity allocated to higher priority traffic of a given customer/service with multiple classes of service. The method involves policing packets of a first class in accordance with at least one policing parameter associated with the first class, and policing packets of a second class in accordance with at least one policing parameter associated with the second class in a manner which gives to the second class at least a portion of a traffic throughput afforded to the first class by at least one of said at least one policing parameter, such as a rate guarantee or burst tolerance, associated with the first class of traffic which is not being used by the packets of the first class. The method is easily adapted to an arbitrary number of different traffic classes.
Abstract:
Provided are a content source node and a first content router and a second content router in a content centric network (CCN), and a communication method thereof. The technology described herein may reduce the updating of routing information due to a movement of a mobile source node and the corresponding overhead, thereby reducing a rate of using an overall network resource by adding routing information, that is, partially updating the routing information of the corresponding mobile source node for content routers on a route through which the mobile source node moves.
Abstract:
A content protection method includes generating content protection information regarding a content to be protected by a content producer, and generating a content name indicating a location of the content in content name based networks based on the content protection information. The content protection information may include at least one of marking information indicating whether the content is protected and policy information indicating a disclosure range of the content.
Abstract:
A Content-Centric Network and a method of performing routing between domains therefore are provided. The method includes identifying a route from an anchor hub in a first domain to one or more hubs in the first domain, the anchor hub being configured to store routing information between a first border hub of the hubs in the first domain and a second border hub in a second domain, detecting, by each of the hubs in the first domain, a neighboring hub based on a sync direction corresponding to the identified route, and sharing the routing information with the neighboring hub, the sharing of the routing information including performing a sync operation between the neighboring hub and each of the hubs in the first domain.
Abstract:
Provided is a scheme of transmitting sequential content (or data) in a content centric network (CCN). The scheme includes a push scheme which may reduce a load on a network and inefficiency of a transmission that results from a constant transmission of a content request message between devices.
Abstract:
A control message processing method and a control message processing apparatus using the method on a wireless mesh network are provided where a neighbor solicitation (NS) information is generated by extracting a part or an entire NS message, the NS message having been generated to request a medium access control (MAC) address of a destination node. A modified route request (RREQ) message, including the NS information, is generated to request the MAC address of the destination node and a routing path to the destination node, and is broadcasted.
Abstract:
Provided are communication devices and methods for requesting content in a network based on a hierarchical name structure. A content requester may search for content without the use of the entire content name in the network based on the hierarchical name structure.
Abstract:
An apparatus and method for receiving data over a network are provided. The data reception apparatus may include a receiver, a congestion decision unit and a suspension session selector. The receiver is configured to receive segments of data, using sessions corresponding to data transmissions apparatuses. The congestion detection unit is configured to determine whether a network to be utilized by a corresponding segment is congested, based on a status of each of the sessions. The suspension selector is configured to select a suspension session from the sessions where the network is determined to be congested.