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US 2021/0344598 A1Published application
Path signatures for data flows
AssigneeCisco Technology, Inc.
InventorsAtri Indiresan, Frank Brockners, Shwetha Subray Bhandari
Life of this patent
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Abstract
This disclosure describes various methods, systems, and devices related to identifying path changes of data flows in a network. An example method includes receiving, at a node, a packet including a first value. The method further includes generating a second value by inputting the first value and one or more node details into a hash function. The method includes replacing the first value with the second value in the packet. The packet including the second value is forwarded by the node.
Claims20
A method, comprising:
- receiving, at a node, a packet comprising a first value;
- generating a second value by inputting the first value and data associated with the node into a hash function;
- replacing the first value with the second value in the packet;
- and
- forwarding, by the node, the packet comprising the second value.
2 more elements
A system, comprising
- at least one processor;
- and
- memory storing instructions that, when executed by the at least one processor, cause the at least one processor to perform operations comprising:
- receiving, at a node, a packet comprising a first value;
- generating a second value by inputting the first value and data associated with the node into a hash function;
- replacing the first value with the second value in the packet;
- and
- forwarding, by the node, the packet comprising the second value.
5 more elements
A system, comprising:
- a first node comprising:
- at least one first processor;
- and
- first memory storing instructions that, when executed by the at least one first processor, cause the at least one first processor to perform operations comprising:
- receiving a packet;
- identifying a first value in an In-situ OAM (IOAM) field of the packet;
- generating a second value by inputting the first value and data associated with the first node into a hash function, a size of the first value being equivalent to a size of the second value;
- replacing the first value with the second value in the IOAM field of the packet;
- and
- based on replacing the first value with the second value, forwarding the packet.
7 more elements
Dependencies are inferred from the claim text.