Multicast source in group address mapping
First Claim
1. A method comprising:
- receiving a join request from a receiving device, whereinthe join request comprises a group address partitioned into one or more octets;
determining whether the group address requires source address generation by comparing at least a portion of the group address with one or more entries in a prefix list;
in response to the at least a portion of the group address matching an entry in the prefix list, generating a source address, whereinthe group address is used to generate the source address by combining one or more pre-configured octet values with the one or more octets of the group address according to an octet assignment, andthe octet assignment assigns the one or more pre-configured octet values to a first portion of the source address, and the octet assignment assigns the one or more octets of the group address to a second portion of the source address; and
upon producing the source addressgenerating an outgoing loin message, wherein the outgoing join message comprises the source address and the group address, andperforming source specific multicast processing using the source address and the group address, whereina source corresponding to the source address is configured to provide a datastream to the group address on a channel,the source address and the group address together uniquely identify the channel, andthe performing the specific source multicast processing comprises transmitting the outgoing loin message to a network element.
1 Assignment
0 Petitions
Accused Products
Abstract
The present disclosure provides a source specific multicast service that maps multicast group addresses to corresponding source addresses. A boundary routing element can be configured to determine whether a received join request includes a mapped group address. If the join request does not include a mapped group address, boundary routing element can be configured to perform normal join request processing of the join request. If the join request includes a mapped group address, the boundary routing element can be configured to generate a corresponding source address using the mapped group address. The boundary routing element can also be configured to perform alternative join request processing as if the join request were an SSM join request that specified both a source address and a multicast group address.
60 Citations
18 Claims
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1. A method comprising:
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receiving a join request from a receiving device, wherein the join request comprises a group address partitioned into one or more octets; determining whether the group address requires source address generation by comparing at least a portion of the group address with one or more entries in a prefix list; in response to the at least a portion of the group address matching an entry in the prefix list, generating a source address, wherein the group address is used to generate the source address by combining one or more pre-configured octet values with the one or more octets of the group address according to an octet assignment, and the octet assignment assigns the one or more pre-configured octet values to a first portion of the source address, and the octet assignment assigns the one or more octets of the group address to a second portion of the source address; and upon producing the source address generating an outgoing loin message, wherein the outgoing join message comprises the source address and the group address, and performing source specific multicast processing using the source address and the group address, wherein a source corresponding to the source address is configured to provide a datastream to the group address on a channel, the source address and the group address together uniquely identify the channel, and the performing the specific source multicast processing comprises transmitting the outgoing loin message to a network element. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A boundary routing element comprising:
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a memory device configured to store program instructions; a processor coupled to the memory device configured to execute the program instructions; a port, wherein the port receives a join request from a receiving device, and the join request comprises a group address partitioned into one or more octets; a routing module, executable by the processor, wherein the routing module determines whether the group address requires source address generation by comparing at least a portion of the group address with one or more entries in a prefix list; and a source address generator, executable by the processor, and configured to, in response to the at least a portion of the group address matching an entry in the prefix list, generate a source address, wherein the group address is used to generate the source address by combining one or more pre-configured octet values with the one or more octets of the group address according to an octet assignment, the octet assignment assigns the one or more pre-configured octet values to a first portion of the source address, and the octet assignment assigns the one or more octets of the group address to a second portion of the source address, and generating the source address enables the routing module to; generate an outgoing join message, wherein the outgoing join message comprises the source address and the group address, and perform source specific multicast processing using the source address and the group address wherein a source corresponding to the source address is configured to provide a datastream to the group address on a channel, the source address and the group address together uniquely identify the channel, and performing the specific source multicast processing comprises transmitting the outgoing join message to a network element. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A non-transitory computer readable storage medium configured to store program instructions that, when executed on a processor, are configured to cause the processor to perform a method comprising:
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receiving a join request from a receiving device, wherein the join request comprises a group address partitioned into one or more octets; determining whether the group address requires source address generation by comparing at least a portion of the group address with one or more entries in a prefix list; and in response to the group address matching an entry in the prefix list, generating a source address, wherein the group address is used to generate the source address by combining one or more pre-configured octet values with the one or more octets of the group address according to an octet assignment, and the octet assignment assigns the one or more pre-configured octet values to a first portion of the source address, and the octet assignment assigns the one or more octets of the group address to a second portion of the source address; and upon producing the source address generating an outgoing join message, wherein the outgoing join message comprises the source address and the group address, and performing source specific multicast processing using the source address and the group address wherein a source corresponding to the source address is configured to provide a datastream to the group address on a channel, the source address and the group address together uniquely identify the channel, and the performing the specific source multicast processing comprises transmitting the outgoing join message to a network element. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification