Intelligent network management platform for IKVM servers

• US 8,862,697 B2
• Filed: 12/31/2009
• Issued: 10/14/2014
• Est. Priority Date: 12/31/2009
• Status: Active Grant

• Current Assignee: ATEN International Company Limited
• Original Assignee: ATEN International Company Limited
• Inventors: He, Xu
• Primary Examiner(s): Woolcock, Madhu
• Application Number:
  US12/651,429
• Publication Number:
  US 20110161405A1
• Time in Patent Office: 1,748 Days
• Field of Search: 709/201, 709/217, 709/219, 709223-225, 709/227, 709/238, 709/243, 709/249, 709/218, 709/229, 709/241
• US Class Current: 709/218
• CPC Class Codes: H04L 41/042 comprising distributed management centres cooperatively managing the network
• CPC Class Codes: H04L 41/0803 Configuration setting

Abstract

An IP-based KVM (IKVM) switch system includes a plurality of control centers connected by a network via respective routers. A group of IKVM switches is connected to each router. Each IKVM switch is connected to a plurality of remote computers. Each control center stores system configuration information regarding all other control centers, including their IP addresses, port information, information about the IKVM switches managed by them, and (optionally) the remote computers connected to each IKVM switch. The control centers use a master-slave scheme to share the configuration information among them. When a client logs on to any control center, all IKVM in the system are displayed on a UI so that the client can select any IKVM or (optionally) remote computer for access. The control centers perform necessary functions to facilitate the access to the select IKVM or remote computer by the client.

Claims

1. A method for establishing connections between a client and a plurality of IP-based switching devices, the method comprising:

(a) obtaining and storing system configuration information on each of a first control computer and one or more second control computers, the system configuration information including, for each of the first control computer and the one or more second control computers connected to the first control computer over a communication network, address and port information, and identification information of all of the plurality of IP-based switching devices managed by each respective control computer, wherein each of the plurality of IP-based switching devices are connected to either the first control computer or one of the one or more second control computers, each IP-based switching device connecting multiple computers to one or more user consoles, wherein each control computer and its managed IP-based switching devices form a sub-network connected to the communication network via a router;

(b) in response to a user of the client choosing and logging on to the first control computer to access an IP-based switching device, the first control computer communicating with the client using a user interface (UI), wherein the UI displays all of the plurality of IP-based switching devices;

(c) receiving, by the first control computer from the client, an input indicating a selected one of the displayed IP-based switching devices;

(c1) determining, by the first control computer, whether the selected IP-based switching device and the first control computer are on a same sub-network;

(c2) if the selected IP-based switching device and the first control computer are determined to be on the same sub-network, then the first control computer enabling communication between the client and the selected IP-based switching device via the first control computer, wherein enabling communication includes performing managing functions by transmitting data between the client and the selected IP-based switching device;

(c3) if the selected IP-based switching device and the first control computer are determined to not be on the same sub-network, then the first control computer identifying one of the one or more second control computers that manages the selected IP-based switching device; and

(d) determining, by the first control computer, whether the client and the identified one of the one or more second control computers are on a same sub-network based on the system configuration information stored on the first control computer;

(d1) if the client and the identified one of the one or more second control computers are determined to not be on the a same sub-network, then enabling communication between the client and the selected IP-based switching device via the first control computer and the identified one of the one or more second control computers, wherein enabling communication comprises the first control computer transmitting a request containing an identity of the selected IP-based switching device to the identified one of the one or more second control computers, the identified one of the one or more second control computers performing managing functions with respect to the selected IP-based switching device, and wherein data communicated between the client and the selected IP-based switching device is communicated via the first control computer and the identified one of the one or more second control computers;

(d2) if the client and the identified one of the one or more second control computers are determined to be on the a same sub-network, then enabling direct communication between the client and the identified one of the one or more second control computers, wherein enabling direct communication comprises the first control computer transmitting a request to the identified one of the one or more second control computers identifying the client'"'"'s IP address and an identity of the selected IP-based switching device, the identified one of the one or more second control computers performing managing functions with respect to the selected IP-based switching device and based on automatically established network communication directly between the client and the identified one of the one or more second control computers, thereafter transferring data between the selected IP-based switching device and the client via the identified one of the one or more second control computers without going through the first control computer.

2. The method of claim 1, where step (d2) further comprises:

transmitting the request to the identified one of the one or more second control computers;

receiving data from the identified one of the one or more second control computers;

transmitting the data received from the identified one of the one or more second control computers in step (d2-2) to the client;

receiving data from the client; and

transmitting the data received from the client in step (d2-4) to the identified one of the one or more second control computers.

3. The method of claim 1, wherein step (d2) comprises:

the request further requesting the identified one of the one or more second control computers to directly communicate with the client.

4. The method of claim 1, further comprising:

receiving a request from another of the one or more second control computers, the request from the another of the one or more second control computers identifying a selected IP-based switching device managed by the first control computer;

communicating with the selected IP-based switching device managed by the first control computer; and

transmitting data between the selected IP-based switching device managed by the first control computer and the another of the one or more second control computers.

5. The method of claim 1, wherein step (a) comprises:

(a1) determining whether the first control computer is a master control computer or a slave control computer;

if the first control computer is determined to be the master control computer,

(a2) receiving, from each second control computer, address and port information for that second control computer and identification information of all IP-based switching devices managed by that second control computer, and generating the system configuration information based on the received information; and

(a3) transmitting the system configuration to each second control computer; and

if the first control computer is determined to be a slave control computer,

(a4) transmitting, to a second control computers of the one or more second control computers which acts as a master control computer, address and port information for the first control computer and identification information of all IP-based switching devices managed by the first control computer; and

(a5) receiving the system configuration information from the master control computer, and storing the received system configuration information.

6. The method of claim 5, wherein step (a) further comprises:

(a6) if the first control computer is a slave control computer, detecting whether the master control computer has failed;

(a7) if the master control computer has failed, determining whether the first control computer is a new master control computer;

(a8) if the first control computer is the new master control computer, repeating steps (a2) and (a3); and

(a9) if the first control computer is not the new master control computer, repeating steps (a4) and (a5).

7. The method of claim 1, wherein the communication network is the Internet or a WAN (wide area network), and wherein the address information is an IP address.

8. The method of claim 1, wherein the IP-based switching devices are IP-based KVM (keyboard, video, mouse) switches each connected to a plurality of remote computers.

9. A first control computer having a memory storing a computer readable program code, the computer readable program code being configured to cause the first control computer to execute a process for establishing connections between a client and a plurality of IP-based switching devices, wherein the process comprises:

(a) obtaining and storing system configuration information on each of the first control computer and one or more second control computers, the system configuration information including, for each of the first control computer and the one or more second control computers connected to the first control computer over a communication network, address and port information, and identification information of all of the plurality of IP-based switching devices managed by each respective control computer, wherein each of the plurality of IP-based switching devices are connected to either the first control computer or one of the one or more second control computers, each IP-based switching device connecting multiple computers to one or more user consoles, wherein each control computer and its managed IP-based switching devices form a sub-network connected to the communication network via a router;

(b) in response to a user of the client choosing and logging on to the first control computer to access an IP-based switching device, the first control computer communicating with the client using a user interface (UI), wherein the UI displays all of the plurality of IP-based switching devices;

(c) receiving, by the first control computer from the client, an input indicating a selected one of the displayed IP-based switching devices;

(c1) determining, by the first control computer, whether the selected IP-based switching device and the first control computer are on a same sub-network;

(c2) if the selected IP-based switching device and the first control computer are determined to be on the same sub-network, then the first control computer enabling communication between the client and the selected IP-based switching device via the first control computer, wherein enabling communication includes performing managing functions by transmitting data between the client and the selected IP-based switching device;

(c3) if the selected IP-based switching device and the first control computer are determined to not be on the same sub-network, then the first control computer identifying one of the one or more second control computers that manages the selected IP-based switching device; and

(d) determining, by the first control computer, whether the client and the identified one of the one or more second control computers are on a same sub-network based on the system configuration information stored on the first control computer;

(d1) if the client and the identified one of the one or more second control computers are determined to not be on the same sub-network, then enabling communication between the client and the selected IP-based switching device via the first control computer and the identified one of the one or more second control computers, wherein enabling communication comprises the first control computer transmitting a request containing an identity of the selected IP-based switching device to the identified one of the one or more second control computers, the identified one of the one or more second control computers performing managing functions with respect to the selected IP-based switching device, and wherein data communicated between the client and the selected IP-based switching device is communicated via the first control computer and the identified one of the one or more second control computers;

(d2) if the client and the identified one of the one or more second control computers are determined to be on the same sub-network, then enabling direct communication between the client and the identified one of the one or more second control computers, wherein enabling direct communication comprises the first control computer transmitting a request to the identified one of the one or more second control computers identifying the client'"'"'s IP address and an identity of the selected IP-based switching device, the identified one of the one or more second control computers performing managing functions with respect to the selected IP-based switching device and based on automatically established network communication directly between the client and the identified one of the one or more second control computers, thereafter transferring data between the selected IP-based switching device and the client via the identified one of the one or more second control computers without going through the first control computer.

10. The first control computer of claim 9, where step (d2) further comprises:

transmitting the request to the identified one of the one or more second control computers;

receiving data from the identified one of the one or more second control computers;

transmitting the data received from the identified one of the one or more second control computers in step (d2-2) to the client;

receiving data from the client; and

transmitting the data received from the client in step (d2-4) to the identified one of the one or more second control computers.

11. The first control computer of claim 9, wherein the process further comprises:

receiving a request from another of the one or more second control computers, the request from the another of the one or more second control computers identifying a selected IP-based switching device managed by the first control computer;

communicating with the selected IP-based switching device managed by the first control computer; and

transmitting data between the selected IP-based switching device managed by the first control computer and the another of the one or more second control computers.

12. The first control computer of claim 9, wherein step (a) comprises:

(a1) determining whether the first control computer is a master control computer or a slave control computer;

if the first control computer is determined to be the master control computer,

(a2) receiving, from each second control computer, address and port information for that second control computer and identification information of all IP-based switching devices managed by that second control computer, and generating the system configuration information based on the received information; and

(a3) transmitting the system configuration to each second control computer; and

if the first control computer is determined to be a slave control computer,

(a4) transmitting, to a second control computers of the one or more second control computers which acts as a master control computer, address and port information for the first control computer and identification information of all IP-based switching devices managed by the first control computer; and

(a5) receiving the system configuration information from the master control computer, and storing the received system configuration information.

13. The first control computer of claim 12, wherein step (a) further comprises:

(a6) if the first control computer is a slave control computer, detecting whether the master control computer has failed;

(a7) if the master control computer has failed, determining whether the first control computer is a new master control computer;

(a8) if the first control computer is the new master control computer, repeating steps (a2) and (a3); and

(a9) if the first control computer is not the new master control computer, repeating steps (a4) and (a5).