IP Library Granted Patent US 10,819,612
Granted Patent B2
US 10,819,612 · App. 16/502,262 · Granted Oct 27, 2020

Automated load balancer discovery

Inventors: John O'Neil (Watertown, MA); Thomas Evan Keiser, Jr. (Boston, MA); Peter Smith (Acton, MA)
Assignee: Zscaler, Inc.
H04L43/106H04L41/046H04L41/0893H04L43/0876H04L67/1004H04L67/1031H04L67/22
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Quick Facts
Patent No.
US 10,819,612
App. No.
16/502,262
Granted
Oct 27, 2020
Kind
B2
Abstract

Computer-implemented systems and methods automatically identify computers that act as load balancers on a digital communications network, using data collected from one or more computers on that network. Once a load balancer has been identified, the communications between two hosts may be connected across the identified load balancer, thereby making it possible to better analyze the behavior of hosts and applications on that network.

Claims (35)

1. A non-transitory computer-readable medium having computer program instructions stored thereon, the computer program instructions being executable by at least one computer processor in a system communicatively coupled to a network to perform steps of:

responsive to collecting data to and from a plurality of hosts on the network, analyzing sizes of incoming data and sizes of outgoing data for the plurality of hosts, wherein the plurality of hosts include managed hosts having management software that communicates to a management server and unmanaged hosts without the management software;

determining one or more hosts of the unmanaged hosts are load balancers based on the analyzing; and

causing the plurality of hosts in the network to connect through the one or more hosts that are identified as the load balancers;

wherein the determining is based on the incoming data being equal in size to the outgoing data based on matching communications over time windows for a particular unmanaged host, when some of the data is between corresponding managed hosts and corresponding unmanaged hosts, each connected to the particular unmanaged host.

2. The non-transitory computer-readable medium of claim 1 , wherein the one or more hosts that are the load balances are one of the unmanaged hosts.

3. The non-transitory computer-readable medium of claim 1 , wherein the collecting the data to and from the plurality of hosts is performed any of the managed hosts, and wherein the steps further include

receiving the data from the any of the managed hosts.

4. The non-transitory computer-readable medium of claim 1 , wherein the analyzing is based on communications between managed hosts and unmanaged hosts.

5. The non-transitory computer-readable medium of claim 1 , wherein the one or more computers that are load balancer include load balancer software thereon.

6. The non-transitory computer-readable medium of claim 1 , wherein the determining is based on the incoming data being equal in size to the outgoing data for a particular unmanaged host, when all of the data is between corresponding managed hosts connected to the particular unmanaged host.

7. The non-transitory computer-readable medium of claim 1 , wherein the data includes a first set of data between corresponding managed hosts connected to a particular unmanaged host and a second set of data between corresponding managed hosts and corresponding unmanaged hosts, each connected to the particular unmanaged host.

8. The non-transitory computer-readable medium of claim 7 , wherein the determining is performed based on whether all of the data is from the first set or if the data includes part of the second set.

9. A load balance detector system comprising:

at least one computer processor communicatively coupled to a network; and

memory having computer program instructions stored thereon, the computer program instructions being executable by the at least one computer processor to perform steps of

responsive to collection of data to and from a plurality of hosts on the network, analyze sizes of incoming data and sizes of outgoing data for the plurality of hosts, wherein the plurality of hosts include managed hosts having management software that communicates to a management server and unmanaged hosts without the management software,

determine one or more hosts of the unmanaged hosts are load balancers based on the analyzed sizes, and

cause the plurality of hosts in the network to connect through the one or more hosts that are identified as the load balancers;

wherein the load balancers are determined based on the incoming data being equal in size to the outgoing data based on matching communications over time windows for a particular unmanaged host, when some of the data is between corresponding managed hosts and corresponding unmanaged hosts, each connected to the particular unmanaged host.

10. The load balance detector system of claim 9 , wherein the one or more hosts that are the load balances are one of the unmanaged hosts.

11. The load balance detector system of claim 9 , wherein the collection of data to and from the plurality of hosts is performed any of the managed hosts, and wherein the steps further include

receive the data from the any of the managed hosts.

12. The load balance detector system of claim 9 , wherein the analyzed sizes is based on communications between managed hosts and unmanaged hosts.

13. The load balance detector system of claim 9 , wherein the one or more computers that are load balancer include load balancer software thereon.

14. The load balance detector system of claim 9 , wherein the load balancers are determined based on the incoming data being equal in size to the outgoing data for a particular unmanaged host, when all of the data is between corresponding managed hosts connected to the particular unmanaged host.

15. The load balance detector system of claim 9 , wherein the data includes a first set of data between corresponding managed hosts connected to a particular unmanaged host and a second set of data between corresponding managed hosts and corresponding unmanaged hosts, each connected to the particular unmanaged host.

16. The load balance detector system of claim 15 , wherein the load balancers are determined based on whether all of the data is from the first set or if the data includes part of the second set.

17. A method comprising:

responsive to collecting data to and from a plurality of hosts on the network, analyzing sizes of incoming data and sizes of outgoing data for the plurality of hosts, wherein the plurality of hosts include managed hosts having management software that communicates to a management server and unmanaged hosts without the management software;

determining one or more hosts of the unmanaged hosts are load balancers based on the analyzing; and

causing the plurality of hosts in the network to connect through the one or more hosts that are identified as the load balancers;

wherein the determining is based on the incoming data being equal in size to the outgoing data based on matching communications over time windows for a particular unmanaged host, when some of the data is between corresponding managed hosts and corresponding unmanaged hosts, each connected to the particular unmanaged host.

18. The method of claim 17 , wherein the collecting the data to and from the plurality of hosts is performed any of the managed hosts, and the method further comprising:

receiving the data from the any of the managed hosts.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2020
From: EDGEWISE NETWORKS, INC.
To: ZSCALER, INC.
Reel/Frame 052959/0532 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 3, 2020
From: EDGEWISE NETWORKS, INC.
To: ZSCALER, INC.
Reel/Frame 052823/0390 →
Continuity (3)
Continuation 16185295 · Nov 9, 2018
Provisional Application 62584456 · Nov 10, 2017
Related Publication 20190349283A1 · Nov 14, 2019