Using segment routing to access chunks of content

Patent metadata

Field	Value
Publication number	US-10313415-B2
Application number	US-201514640634-A
Country	US
Kind code	B2
Filing date	Mar 6, 2015
Priority date	Jul 18, 2014
Publication date	Jun 4, 2019
Grant date	Jun 4, 2019

Abstract

According to one aspect, a method includes obtaining a packet at a network endpoint from a client via a first segment. The packet has a segment routing header that includes a list of addresses attached to a chunk entry, and is configured to identify at least a first chunk requested by the client. The method also includes identifying, at the network endpoint, the at least first chunk using the packet, and determining at the network endpoint if the network endpoint has the first chunk. If it is determined that the network endpoint has the first chunk, the first chunk is provided from the network endpoint to the client. Alternatively, if it is determined that the network endpoint does not have the first chunk, the packet is provided to a second segment.

First claim

What is claimed is:

1. A method comprising:
obtaining a packet at a network endpoint, the packet being obtained from a client via a first segment, the packet having a segment routing header, the segment routing header including a list of addresses attached to a chunk entry, wherein the packet is configured to identify at least a first chunk requested by the client, wherein the list of addresses includes a plurality of addresses, and wherein a first chunk address corresponding to the at least first chunk is a last address included in the list of addresses, the last address being a V6 content descriptor (v6CD) that identifies the first chunk, and wherein other addresses in the list of addresses identify endpoints that may be asked for the first chunk;
identifying, at the network endpoint, the at least first chunk using the packet;
determining at the network endpoint if the network endpoint has the first chunk;
providing the first chunk from the network endpoint to the client if it is determined that the network endpoint has the first chunk; and
providing the packet to at least a second segment if it is determined that the network endpoint does not have the first chunk.

2. The method of claim 1 wherein the first chunk is a chunk of video, and wherein the segment routing header is configured to identify at least the first chunk requested by the client.

3. The method of claim 1 wherein the first chunk is a chunk of audio.

4. The method of claim 1 wherein the packet is included in traffic, and wherein the method further includes:
terminating the traffic if it is determined that the network endpoint has the first chunk.

5. A tangible, non-transitory computer-readable medium comprising computer program code, the computer program code, when executed, configured to:
obtain a packet at a network endpoint, the packet being obtained from a client via a first segment, the packet having a segment routing header, the segment routing header including a list of addresses attached to a chunk entry, the list of addresses including a plurality of addresses, wherein the packet is configured to identify at least a first chunk requested by the client, wherein a first chunk address corresponding to the at least first chunk is a last address included in the list of addresses, the computer program code configured to identify the at least first chunk using the packet being further configured to obtain the first chunk address from the list of addresses, wherein the last address is a V6 content descriptor (v6CD) that identifies the first chunk, and wherein other addresses in the list of addresses identify endpoints that may be asked for the first chunk;
identify, at the network endpoint, the at least first chunk using the packet;
determine at the network endpoint if the network endpoint has the first chunk;
provide the first chunk from the network endpoint to the client if it is determined that the network endpoint has the first chunk; and
provide the packet to at least a second segment if it is determined that the network endpoint does not have the first chunk.

6. The tangible, non-transitory computer-readable medium of claim 5 wherein the first chunk is a chunk of video, and wherein the segment routing header is configured to identify at least the first chunk requested by the client.

7. The tangible, non-transitory computer-readable medium of claim 5 wherein the first chunk is a chunk of audio.

8. The tangible, non-transitory computer-readable medium of claim 5 wherein the packet is included in traffic, and wherein the computer program code is further configured to:
terminate the traffic if it is determined that the network endpoint has the first chunk.

9. An apparatus comprising:
a processor;
a data storage arrangement, the data storage arrangement configured to store a set of chunks;
an input/output (I/O) interface, the I/O interface arranged to obtain a packet from a client via a first network segment, the packet including a segment routing header having a list of addresses including a first chunk address arranged to identify a first chunk requested by the client; and
logic arranged to be executed by the processor, the logic being configured to identify the first chunk using the packet and to determine if the first chunk is included in the set of chunks, wherein the logic is further configured to provide the first chunk to the client if it is determined that the first chunk is included in the set of chunks and to cause the I/O interface to provide the packet to at least a second segment if it is determined that the first chunk is not included in the set of chunks, wherein the first chunk address is a last address included in the list of addresses, the list of addresses including a plurality of addresses, the last address being a V6 content descriptor (v6CD) that identifies the first chunk, and wherein other addresses in the list of addresses identify endpoints that may be asked for the first chunk.

10. A method comprising:
obtaining a packet at a network endpoint, the packet being obtained from a client via a first segment, the packet having a segment routing header, the segment routing header including a list of addresses attached to a chunk entry, wherein the packet is configured to identify at least a first chunk requested by the client, wherein the first chunk is a chunk of video, and wherein the segment routing header is configured to identify at least the first chunk requested by the client;
identifying, at the network endpoint, the at least first chunk using the packet;
determining at the network endpoint if the network endpoint has the first chunk;
providing the first chunk from the network endpoint to the client if it is determined that the network endpoint has the first chunk; and
providing the packet to at least a second segment if it is determined that the network endpoint does not have the first chunk, wherein the list of addresses includes a plurality of addresses, and wherein a last address in the list of addresses is a content identifier corresponding to the at least first chunk, the CID being an address in which content information is included, the content information including at least one selected from a group including a format, a resolution, a quality, and a time code.

Assignees

• Surcouf Andre
• Townsley William Mark
• Gruszka Thierry
• Cisco Tech Inc

Inventors

• Surcouf Andre
• Townsley William Mark
• Gruszka Thierry

Classifications

• G06F16/00

  Information retrieval; Database structures therefor; File system structures therefor · CPC title

• G06F16/955

  using information identifiers, e.g. uniform resource locators [URL] · CPC title

• H04N21/2393

  involving handling client requests (scheduling or organising the servicing of application requests H04L67/60) · CPC title

• H04N21/6581

  Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application · CPC title

• H04L45/74

  Address processing for routing · CPC title