Smartap arrangement and methods thereof

• US 9,736,051 B2
• Filed: 04/30/2014
• Issued: 08/15/2017
• Est. Priority Date: 04/30/2014
• Status: Active Grant

• Current Assignee: Keysight Technologies Singapore Sales Pte Ltd (Keysight Technologies, Inc.)
• Original Assignee: Ixia (Keysight Technologies, Inc.)
• Inventors: Nachum, Youval
• Primary Examiner(s): Ghowrwal, Omar
• Assistant Examiner(s): BROCKMAN, ANGEL T
• Application Number:
  US14/266,665
• Publication Number:
  US 20150319030A1
• Time in Patent Office: 1,203 Days
• Field of Search: 370250
• CPC Class Codes: H04L 41/02 Standardisation; Integration
• CPC Class Codes: H04L 41/26 using dedicated tools for LAN [Local Area Network] management
• CPC Class Codes: H04L 43/00 Arrangements for monitoring or testing data switching networks
• CPC Class Codes: H04L 43/02 Capturing of monitoring data
• CPC Class Codes: H04L 43/106 using time related information in packets, e.g. by adding timestamps
• CPC Class Codes: H04L 43/12 Network monitoring probes

Abstract

Methods for enabling monitoring a network with a monitoring tool are disclosed. The method includes receiving data packets and adding metadata to the data packets, thereby forming metadata-enhanced data packets. The method also includes forwarding the metadata-enhanced data packets along a path toward the monitoring tool, wherein the metadata pertains to data employed by the monitoring tool to perform network monitoring tasks. Arrangements for performing the same are also disclosed.

Claims

1. An arrangement comprising a network tap, the network tap comprising:

a first port for receiving data packets from a network, wherein the data packets specify a destination address;

logic communicatively coupled to said first port, said logic adding first metadata to each data packet of a first plurality of data packets comprising a percentage of said data packets from the network, thereby forming a first plurality of metadata-enhanced data packets, wherein said first metadata includes data specifying a geographic location of said arrangement, and wherein said geographic location is also a location where said first metadata is added to said first plurality of data packets, and wherein the data specifying the geographic location is distinct from a respective network address in each data packet of the first plurality of data packets;

a second port for forwarding said first plurality of metadata-enhanced data packets from the network tap to a monitoring tool remote from the network tap, thereby enabling monitoring of the network by said monitoring tool remote from the

network tap, wherein said first metadata comprises data employed by said monitoring tool remote from the network tap to perform network monitoring tasks; and

a third port for forwarding the data packets on a path to the destination address.

2. The arrangement of claim 1 wherein said network is a virtual network environment.

3. The arrangement of claim 1 wherein said network is a mobile network environment.

4. The arrangement of claim 1 wherein said first metadata is generated in accordance with predefined requirements of said monitoring tool.

5. The arrangement of claim 1 wherein said first metadata includes a time-stamp reflecting a time said first data packet is received at said first port.

6. The arrangement of claim 1 wherein said first metadata includes a flow ID.

7. The arrangement of claim 1 wherein said first metadata-enhanced data packet represents a truncated version of said first data packet.

8. The arrangement of claim 1 wherein said first metadata is included in one or more fields of a header of said first data packet.

9. The arrangement of claim 1 wherein said logic is implemented as software in a network packet broker.

10. The arrangement of claim 1 wherein said first metadata is added to said first data packet only if a predefined threshold is met for a parameter of said data packets.

20. The arrangement of claim 1 wherein the network is implemented using a virtual environment and network data packets flow through abstract representations of physical hardware, and wherein the data specifying the geographic location of the arrangement comprises global positioning system (GPS) grid coordinates.

11. A method performed by a network tap, the method comprising:

receiving data packets from a network, wherein the data packets specify a destination address;

adding first metadata to a first data packet of said data packet and to each packet of a first plurality of data packets comprising a percentage of the data packets from the network, thereby forming a first plurality of metadata-enhanced data packets, wherein said first metadata includes data specifying a geographic location of said arrangement, and wherein said geographic location is also a location where said first metadata is added to said first data packet and a first plurality of packets, and wherein the data specifying the geographic location is distinct from a respective network address in the first data packet and each packet of the first plurality of data packets;

forwarding said first metadata-enhanced data packet from the network tap to a monitoring tool remote from the network tap, thereby enabling monitoring of the network by said monitoring tool remote from the network tap, wherein said first metadata comprises data employed by said monitoring tool remote from the network tap to perform said network monitoring tasks; and

forwarding the data packets on a path to the destination address.

12. The method of claim 11 wherein said network is a virtual network environment.

13. The method of claim 11 wherein said network is a mobile network environment.

14. The method of claim 11 wherein said first metadata includes a time-stamp reflecting a time said first data packet is received at said first port.

15. The method of claim 11 wherein said first metadata includes a flow ID.

16. The method of claim 11 wherein said first metadata is generated in accordance with predefined requirements of said monitoring tool.

17. The method of claim 11 wherein said first metadata-enhanced data packet represents a truncated version of said first data packet.

18. The method of claim 11 wherein said first metadata is included in one or more fields of a header of said first data packet.

19. The method of claim 11 wherein said receiving, adding, and forwarding are implemented by software in a network packet broker.