PATENT CLAIM ANALYSIS

Application Number: 16021770
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["370", "392000"]

Abstract:
This application provides a packet transmission method, an apparatus, and a system in an overlay network. Network address translation and reverse network address translation are implemented at a demarcation point: an IP tunnel end point, between the logical network and the physical network, an IP option is expanded to carry a source-end network element identifier and a destination-end network element identifier, and a virtual machine in an upper-layer logical network is interconnected with a peer-end virtual machine through a lower-layer physical network by using an IP tunnel.

Claim (Index 17):
The system according to  claim 10 , wherein the first IP tunnel end point is further configured to receive a first flow table delivered by a software-defined networking (SDN) controller, wherein the first flow table comprises a mapping table and a network address translation (NAT) table, the mapping table comprises a correspondence between address information of the first virtual machine and the network element identifier of the first virtual machine, and a correspondence between address information of the second virtual machine and the network element identifier of the second virtual machine, the NAT table indicates a first packet forwarding rule, and the first packet forwarding rule comprises:\n replacing a source IP address and a source MAC address of the first virtual machine that are carried in the raw packet with the IP address and a MAC address of the first IP tunnel end point; replacing the destination IP address carried in the raw packet with the IP address of the second IP tunnel end point; and when the first virtual machine and the second virtual machine are in different network segments, replacing a destination MAC address carried in the raw packet with a MAC address of a first gateway connected to a first server, or when the first virtual machine and the second virtual machine are in a same network segment, replacing a destination MAC address of the raw packet with a MAC address of the second IP tunnel end point; and wherein the second IP tunnel end point is further configured to receive a second flow table delivered by the SDN controller, wherein the second flow table comprises a reverse network address translation (RNAT) table that indicates a second packet forwarding rule, and the second packet forwarding rule comprises: matching the network element identifier of the first virtual machine and the network element identifier of the second virtual machine that are carried in the received modified packet; replacing the source IP address and the source MAC address of the modified packet with an IP address and a MAC address that correspond to the network element identifier of the first virtual machine; and replacing the destination IP address and the destination MAC address of the modified packet with an IP address and a MAC address that correspond to the network element identifier of the second virtual machine.

Metadata:
- Claim Count in Document: 36.0
- Percentile: 94.0
- Lexical Diversity: 1.82692
- Patent Class: 370.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15086524', '15401269', '14738341', '13472410', '15243108']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5996518726352437
- 35 USC 102 Novelty (BERT): 0.5044702746928584
- Combined Prediction Score: 0.5901337128410051
- Mean Citation Score: 267.38509400000004
- Max Citation Score: 282.00317
- Similarity Product: 213.9949730585027

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test