Abstract: One embodiment provides a system that facilitates a content requesting device to handle a potential timeout event. During operation, the system receives, by a content producing device, a packet that corresponds to a first Interest message from a content requesting device, where the first Interest includes a name. Responsive to determining that additional time is required to generate a matching Content Object for the first Interest, the system generates a notification message which indicates a time period after which a second Interest is to be sent out by the content requesting device. The name for the second Interest can be the same as the name for the first Interest or a new name as indicated in the notification message. The system transmits the notification message to the content requesting device, thereby facilitating the content requesting device to handle a potential timeout event.

Abstract: One embodiment provides a system that facilitates optimal forwarding decisions based on device-specific routing parameters. During operation, the system receives, from a transmitting device, an advertisement for a name prefix, wherein the advertisement includes route parameters specific to the transmitting device. The system stores the route parameters based on the name prefix and a first interface associated with the transmitting device. In response to receiving an interest with a name that includes the name prefix, the system obtains a matching entry in a forwarding information base based on the name prefix, wherein the matching entry indicates one or more outgoing interfaces and corresponding route parameters, which include the first interface and the corresponding stored route parameters. The system selects a second interface from the outgoing interfaces based on the route parameters for the outgoing interfaces, and forwards the interest via the selected second interface.

Abstract: An ad-marketplace system manages an exchange for advertisement opportunities from a plurality of content brokers. Each advertising opportunity can include one or more attributes that describe advertisement slots during a broadcast of a data stream. The ad-marketplace system can receive one or more bids for an advertising opportunity associated with a media stream, and can select a matching bid from an advertiser for the advertising opportunity. Each bid can specify one or more advertising requirements that are to be satisfied by the advertising opportunity. When the ad-marketplace system selects the matching bid, the ad-marketplace system establishes a contract between the media broker, and places an initial payment from the advertiser in escrow. The ad-marketplace system can provide a payment to the media broker after confirming that a set of consumers have consumed the advertisement.

Abstract: One embodiment provides a system that deletes cached content. During operation, the system generates, by a content producing device, a content object packet that includes a name for the content object and a deletion identifier that is used to verify a subsequent deletion command. The system receives a notification message that includes a routable prefix for a router and indicates that the router has cached the content object packet. The system stores in a data structure a mapping between the routable prefix, the name, and a previously generated deletion token which is used as a pre-image of the deletion identifier. In response to determining a condition to delete the cached content object packet, the system transmits a deletion command based on the routable prefix, wherein the deletion command includes the deletion token and the name for the cached copy of the content object packet to be deleted.

Abstract: One embodiment provides a system that facilitates dynamic adjustment of forwarding information in a CCN. During operation, the system receives, by forwarding circuitry, an interest with a name that is a hierarchically structured variable length identifier which comprises contiguous name components ordered from a most general level to a most specific level. The system identifies in a first data structure an entry for one or more name components of the name, wherein the entry includes a list of outgoing interfaces associated with the one or more name components. The system determines network properties in response to forwarding the interest to a first interface of the list. The system reorders the list in order of priority based on the network properties, thereby facilitating the forwarding circuitry to dynamically adjust a likelihood of using a respective interface for forwarding interests associated with the one or more name components.

Abstract: One embodiment provides a system that facilitates efficient communication based on a forwarding information base (FIB). The system receives, by an intermediate node, a first interest which includes a name and maximum interest information which indicates whether to forward a subsequent interest with a same name prefix as the first interest. In response to obtaining a first entry from a FIB based on the name for the first interest, the system adds to the first entry, for an outgoing interface corresponding to an arrival interface of the first interest, the maximum interest information included in the first interest as an interest limit for the first entry. In response to determining that the interest limit for the first entry is reached, the system refrains from forwarding the subsequent interest, thereby facilitating the intermediate node to manage traffic based on information in the forwarding information base provided by a content producer.

Abstract: One embodiment provides a system that facilitates efficient management of a forwarding information base (FIB). During operation, the system receives, by an intermediate node, a first interest which includes a name and a condition for removing a first entry from a FIB, wherein a name is a hierarchically structured variable length identifier that includes contiguous name components ordered from a most general level to a most specific level. In response to obtaining the first entry from the FIB based on the name for the first interest, the system adds to the first entry the condition included in the first interest as a lifetime value for the first entry. In response to determining that the lifetime value is satisfied, the system removes the first entry from the FIB, thereby facilitating the intermediate node to efficiently manage the FIB based on information provided by a content producing device.

Abstract: A computer-implemented method includes: receiving an interest of an object in a network; obtaining a stack requirement for a protocol stack, wherein the stack requirement specifies at least a functionality for a stack component; selecting the stack component, based on the functionality and at least a name prefix of the interest or the object; and instantiating the stack component in the protocol stack.

Abstract: One embodiment provides a system for facilitating efficient communication of a collection of interests. During operation, the system receives, by an intermediate node, a first packet which has a name and a first nonce, wherein the first packet indicates a set of member interests, wherein a member interest has a name. In response to not obtaining a matching entry in a pending interest table based on the name for the first packet, the system creates a new entry in the pending interest table, wherein an entry includes a second nonce, a reference count, and a set of arrival nonces and corresponding arrival interfaces. The system sets the new entry's second nonce to a new nonce, and sets the new entry's reference count to a number of member interests indicated in the first packet. The system forwards the first packet, wherein the first nonce is replaced with the new nonce.

Abstract: One embodiment provides a system for facilitating efficient communication of an interest group packet indicating a collection of interests. During operation, the system receives, by an intermediate node, a first packet which has a name and indicates a set of member interests, wherein a member interest has a name, wherein a name is a hierarchically structured variable length identifier that includes contiguous name components ordered from a most general level to a most specific level. In response to obtaining a content object which satisfies a member interest, the system removes the indicated member interest from the first packet. The system adds an entry in a pending interest table for the first packet, wherein the entry indicates the name for the first packet, the name for each member interest, and an indicator of whether each member interest is satisfied. The system transmits the first packet to another node.

Abstract: One embodiment provides a system that facilitates dynamic adjustment of forwarding information in a CCN. During operation, the system receives, by forwarding circuitry, an interest with a name that is a hierarchically structured variable length identifier which comprises contiguous name components ordered from a most general level to a most specific level. The system identifies in a first data structure an entry for one or more name components of the name, wherein the entry includes a list of outgoing interfaces associated with the one or more name components. The system determines network properties in response to forwarding the interest to a first interface of the list. The system reorders the list in order of priority based on the network properties, thereby facilitating the forwarding circuitry to dynamically adjust a likelihood of using a respective interface for forwarding interests associated with the one or more name components.

Abstract: A transport-framework system facilitates instantiating a custom transport stack. During operation, the system can obtain a stack requirement for a custom stack. The stack requirement can specify component attributes and a policy for one or more components to instantiate in the custom stack. The system can select a stack component that satisfies the stack requirement for the custom stack, and can instantiate the stack component in the custom stack. For example, the system can select a stack component by analyzing the stack requirement to determine a component requirement for a component that needs to be instantiated in the custom stack. The system determines, from a component repository, a set of matching components that satisfies the component requirement. If multiple matching components exist, the system selects a matching component which is most compatible with other components in the custom stack.

Abstract: One embodiment provides a transport stack updating system that facilitates updating a component of a transport stack of a computer system. During operation, the system sets, by a component of the transport stack, a state of the component as quiesced in response to receiving a pause message. A component in the quiesced state is precluded from processing an interest or a content object. The system determines whether the pause message triggers a rejection passes an acknowledgment message of the pause message up the transport stack. The acknowledgment message indicates that the pause message has been successfully processed by a respective component of the transport stack.

Abstract: One embodiment provides a system that facilitates schematized access control in a content centric network. During operation, the system generates, by a content producing device, a secret key for a user based on a schema, wherein the schema is a regular expression which corresponds to one or more names and allows a user access to content associated with the names, wherein a name is a hierarchically structured variable length identifier that includes contiguous name components ordered from a most general level to a most specific level. The system receives an interest with a name that corresponds to the schema. The system encrypts a payload of a responsive content object based on the interest name. The system transmits the responsive content object with the encrypted payload to the user, which allows the user to decrypt the encrypted payload with the secret key.

Abstract: One embodiment provides a system that facilitates schematized access control in a content centric network. During operation, the system generates, by a content producing device, a secret key for a user based on a schema, wherein the schema is a regular expression which corresponds to one or more names and allows a user access to content associated with the names, wherein a name is a hierarchically structured variable length identifier that includes contiguous name components ordered from a most general level to a most specific level. The system receives an interest with a name that corresponds to the schema. The system encrypts a payload of a responsive content object based on the interest name. The system transmits the responsive content object with the encrypted payload to the user, which allows the user to decrypt the encrypted payload with the secret key.

Abstract: One embodiment of the present invention provides a system for automatic configuration of a computing device in a content-centric network (CCN). During operation, the system sends, by the computing device on at least one of the computing device's faces, an interest in configuration information. The interest has a predetermined name prefix. The system then receives a content object in response to the interest. The content object includes at least a default name prefix, to which the computing device can send other interests. The system further configures the computing device based on the received content object.

Abstract: A CCN network node use reputation values for one or more interfaces to determine how to forward an Interest. During operation, the network node can receive an Interest or Content Object via a network interface, determines one or more candidate outbound faces for forwarding the Interest by performing a longest-prefix-matching lookup in a forwarding information base (FIB) using the Interest's name or name prefix as input. A respective FIB entry maps a name prefix to a forwarding rule that includes a corresponding outbound face for the name prefix. The node can determine a reputation value for each of the candidate outbound faces based on reputation information stored in association with the Interest's name or name prefix, and selects a candidate outbound face with a reputation value exceeding a first predetermined threshold. The node can then forward the received Interest via the selected outbound face.

Abstract: One embodiment provides a system that facilitates routing with minimum name disclosure in a CCN. During operation, the system adds a first entry to a local forwarding information base for a first name prefix and a corresponding first suffix encryption key indicated in a first advertisement. In response to receiving a first interest with a name that includes the first name prefix, the system performs a lookup in the forwarding information base for the first interest name to obtain the first entry. The system encrypts a suffix of the first interest name based on the first suffix encryption key, wherein the suffix begins from a name component following the first name prefix. The system forwards the first interest to one or more interfaces indicated in the first entry, thereby facilitating routing with minimum name disclosure in a content centric network.

Abstract: One embodiment of the present invention provides a system for retrieving a content collection over a network. During operation, the system determines additional information associated with the piece of content that is needed for consumption of the content collection; generates a plurality of Interests, which includes at least one Interest for a catalog of the content collection and at least one Interest for the additional information; and forwards, concurrently, the plurality of Interests, thereby facilitating parallel retrieval of the content collection and the additional information.

Abstract: One embodiment provides a pending interest table (PIT) sharing system that facilitates sharing of a PIT. During operation, the system receives, by a local interface, a first message comprising an interest from a node of origin. The hop count for the interest has not been decreased. The system creates an entry, which includes a name of the interest, in a PIT for the interest. If the system receives a content object associated with the name, the system retrieves and removes the entry from the PIT, and sends the content object to the node of origin in a second message.