System and method for multi-source multicasting in content-centric networks
First Claim
1. A computer-executable method for updating routing information associated with a multicast group in an information-centric network (ICN), the method comprising:
- receiving, by a first node in the ICN, an update message for the multicast group from a neighbor node;
wherein the multicast group is associated with a prefix of a Hierarchically Structured Variable Length Identifier (HSVLI), which comprises a variable number of name components ordered from a most general name component to a most specific name component;
wherein the multicast group includes a number of anchor nodes associated with the HSVLI prefix, including a root anchor node having a name with a smallest lexicographical value among the anchor nodes; and
wherein the update message specifies the HSVLI prefix;
selecting, based on topology information stored on the first node, from neighbors of the first node one or more next-hop neighbors that meet a notification condition, wherein the one or more neighbors meeting the notification condition provide a minimal sum of distance and link cost to the first node; and
forwarding the update message to the one or more next-hop neighbors.
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Abstract
One embodiment of the present invention provides a system for updating routing information associated with a multicast group in an information-centric network (ICN). During operation, a first node in the ICN receives an update message for the multicast group from a neighbor node. The multicast group includes a root anchor node and a number of anchor nodes with the root anchor node having a smaller name than the anchor nodes. The update message specifies a prefix associated with the multicast group and the root anchor node of the multicast group. The system selects, based on topology information stored on the first node, from neighbors of the first node one or more next-hop neighbors that meet a notification condition, and forwards the update message to the one or more next-hop neighbors.
608 Citations
21 Claims
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1. A computer-executable method for updating routing information associated with a multicast group in an information-centric network (ICN), the method comprising:
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receiving, by a first node in the ICN, an update message for the multicast group from a neighbor node; wherein the multicast group is associated with a prefix of a Hierarchically Structured Variable Length Identifier (HSVLI), which comprises a variable number of name components ordered from a most general name component to a most specific name component; wherein the multicast group includes a number of anchor nodes associated with the HSVLI prefix, including a root anchor node having a name with a smallest lexicographical value among the anchor nodes; and wherein the update message specifies the HSVLI prefix; selecting, based on topology information stored on the first node, from neighbors of the first node one or more next-hop neighbors that meet a notification condition, wherein the one or more neighbors meeting the notification condition provide a minimal sum of distance and link cost to the first node; and forwarding the update message to the one or more next-hop neighbors. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A non-transitory computer-readable storage medium storing instructions that when executed by a computing device cause the computing device to perform a method for updating routing information associated with a multicast group in an information-centric network (ICN), the method comprising:
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receiving, by a first node in the ICN, an update message for the multicast group from a neighbor node; wherein the multicast group is associated with a prefix of a Hierarchically Structured Variable Length Identifier (HSVLI), which comprises a variable number of name components ordered from a most general name component to a most specific name component; wherein the multicast group includes a number of anchor nodes associated with the HSVLI prefix, including a root anchor node having a name with a smallest lexicographical value among the anchor nodes; and wherein the update message specifies the HSVLI prefix; selecting, based on topology information stored on the first node, from neighbors of the first node one or more next-hop neighbors that meet a notification condition, wherein the one or more neighbors meeting the notification condition provide a minimal sum of distance and link cost to the first node; and forwarding the update message to the one or more next-hop neighbors. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer system for updating routing information associated with a multicast group in an information-centric network (ICN), the system comprising:
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a processor; and a storage device coupled to the processor and storing instructions which when executed by the processor cause the processor to perform a method, the method comprising; receiving, by a first node in the ICN, an update message for the multicast group from a neighbor node; wherein the multicast group is associated with a prefix of a Hierarchically Structured Variable Length Identifier (HSVLI), which comprises a variable number of name components ordered from a most general name component to a most specific name component; wherein the multicast group includes a number of anchor nodes associated with the HSVLI prefix, including a root anchor node having a name with a smallest lexicographical value among the anchor nodes; and wherein the update message specifies the HSVLI prefix; selecting, based on topology information stored on the first node, from neighbors of the first node one or more next-hop neighbors that meet a notification condition, wherein the one or more neighbors meeting the notification condition provide a minimal sum of distance and link cost to the first node; and forwarding the update message to the one or more next-hop neighbors. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification