Method and system for collecting topology information
First Claim
1. A method comprising:
- receiving, by a first sensor of a network, a stream of packets,identifying, by the first sensor, a topology trace packet in the stream of packets,the topology trace packet including;
a destination address, anda second sensor ID, of a second sensor of the network, in a payload of the topology trace packet,modifying, by the first sensor, the topology trace packet to include a first sensor ID, of the first sensor, in the payload,sending, by the first sensor and after modifying the topology trace packet, the topology trace packet to the destination address,forming, by the first sensor, a report that includes the first sensor ID, the second sensor ID, and Time-To-Live (TTL) data, andsending, by the first sensor, the report to a topology manager to provide the topology manager with information about spatial relation between the first sensor and the second sensor.
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Accused Products
Abstract
A method of providing topology information about a network to a topology manager is disclosed. The network includes a plurality of sensors each having a sensor ID, and the method includes performing the following steps at each of the plurality of sensors: receiving a stream of packets and identifying a topology trace packet in the stream of packets, wherein the topology trace packet has a destination address and an ID of a previous sensor, including the sensor ID in the topology trace packet, sending the topology trace packet to the destination address, forming a report message so as to include the sensor ID, the previous sensor ID, sending the report to the topology manager; and, providing network addresses of adjacent nodes to the topology manager.
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Citations
20 Claims
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1. A method comprising:
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receiving, by a first sensor of a network, a stream of packets, identifying, by the first sensor, a topology trace packet in the stream of packets, the topology trace packet including; a destination address, and a second sensor ID, of a second sensor of the network, in a payload of the topology trace packet, modifying, by the first sensor, the topology trace packet to include a first sensor ID, of the first sensor, in the payload, sending, by the first sensor and after modifying the topology trace packet, the topology trace packet to the destination address, forming, by the first sensor, a report that includes the first sensor ID, the second sensor ID, and Time-To-Live (TTL) data, and sending, by the first sensor, the report to a topology manager to provide the topology manager with information about spatial relation between the first sensor and the second sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A non-transitory computer-readable medium storing instructions, the instructions comprising:
one or more instructions that, when executed by a first sensor of a network, cause the first sensor to; receive a stream of packets, identify a topology trace packet in the stream of packets, the topology trace packet including; a destination address, and a second sensor ID, of a second sensor of the network, in a payload of the topology trace packet, modify the topology trace packet to include a first sensor ID, of the first sensor, in the payload, send, after modifying the topology trace packet, the modified topology trace packet to the destination address, form a report that includes the first sensor ID, the second sensor ID, and Time-To-Live (TTL) data, and send the report to a topology manager to provide the topology manager with information about spatial relation between the first sensor and the second sensor. - View Dependent Claims (19, 20)
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16. A system comprising:
a first sensor being associated with a first sensor ID and configured to; receive a stream of packets; identifying a topology trace packet in the stream of packets, the topology trace packet including; a destination IP address, and a second sensor ID, of a second sensor, in a payload of the topology trace packet, modify the topology trace packet to include the first sensor ID in the topology trace packet, send, after modifying the topology trace packet, the topology trace packet to the destination IP address, form a repot message that includes the first sensor ID, the second sensor ID, and Time-To-Live (TTL) data, and send the report message to a topology manager. - View Dependent Claims (17, 18)
Specification