Network apparatus with Java co-processor

• US 6,170,015 B1
• Filed: 05/15/1998
• Issued: 01/02/2001
• Est. Priority Date: 05/15/1998
• Status: Expired due to Term

• Current Assignee: Avaya Incorporated
• Original Assignee: Nortel Networks Limited (Nortel Networks Corporation)
• Inventors: Lavian, Tal I.
• Primary Examiner(s): VU, VIET DUY
• Application Number:
  US09/080,143
• Time in Patent Office: 963 Days
• Field of Search: 709/220, 709/221, 709/223, 709/224, 709/225, 709/230, 709/232, 709/233, 709/234, 709/235, 709/238, 709/242, 709/250
• US Class Current: 709/232
• CPC Class Codes: H04L 41/0213 Standardised network management protocols, e.g. simple network management protocol [SNMP]
• CPC Class Codes: H04L 41/0816 the condition being an adaptation, e.g. in response to network events
• CPC Class Codes: H04L 41/0886 Fully automatic configuration
• CPC Class Codes: H04L 43/00 Arrangements for monitoring or testing data switching networks
• CPC Class Codes: H04L 43/16 Threshold monitoring

Abstract

A method and apparatus for automatically configuring a network switch having external network data ports, a processor, memory, data bus, and coprocessor. Network data is monitored on the external network data port. Information about the network data traffic is compared to one or more threshold conditions. The network switch is automatically configured by the coprocessor if the network data meets one of the threshold conditions. The monitor and configuration functions can be performed by software running on the coprocessor which has been downloaded from an external network maintenance station through a maintenance data port. Information about the network data traffic can be uploaded to the external network maintenance station through a maintenance data port.

Claims

1. A network apparatus comprising:

an external network data port;

a processor coupled to external network data port;

a data bus coupled to the processor;

a memory coupled to the processor and the data bus to store data and program instructions;

a maintenance data port coupled to the data bus; and

a coprocessor coupled to the data bus to monitor a flow of network data through the external network data port, analyze information regarding the flow of network data, and automatically reconfigure the flow of network data supported by the network apparatus in response to the information indicating that a threshold condition, being data prestored within the memory, has been met.

2. The network apparatus of claim 1 wherein the data bus is a Peripheral Component Interconnect bus.

4. The network apparatus of claim 1 wherein the maintenance data port is coupled to an external network maintenance station.

5. The network apparatus of claim 1 further comprising a set of monitor program instructions stored in the memory and executed by the coprocessor.

6. The network apparatus of claim 5 wherein the set of monitor program instructions comprises program instructions transferred to the memory through the maintenance data port from an external network maintenance station.

7. The network apparatus of claim 1 further comprising a set of network configuator program instructions stored in the memory and executed by the coprocessor.

8. The network apparatus of claim 7 wherein the set of network configuator program instructions comprises program instructions transferred to the memory through the maintenance data port from an external network maintenance station.

9. The network apparatus of claim 1 wherein the processor transfers monitor information through the maintenance data port to an external network maintenance station.

3. A method comprising:

monitoring information related to network traffic data on the external network data port internally within a network switch;

comparing the information with at least one predefined threshold condition; and

automatically reconfiguring the network switch if the information meets or exceeds the at least one predefined threshold condition by transferring information into the internal memory through a maintenance data port.

16. The method of claim 3 wherein the reconfiguring of the network switch includes

transferring Java bytecode to a Java Virtual Machine loaded in the network switch; and

converting the Java bytecode into machine code executed by the network switch.

10. A method for configuring a network switch having an external network data port, a maintenance data port, processor, memory, data bus, and coprocessor, the method comprising:

loading software for use by the coprocessor to monitor network data traffic through the maintenance data port;

monitoring network data traffic on the external network data port by the coprocessor;

comparing the network data traffic to at least one predefined threshold condition; and

automatically configuring the network switch with the coprocessor if the network data traffic meets the at least one predefined threshold condition.

11. The method of claim 10, wherein the loading of the software further comprises transferring a set of monitor program instructions to the memory through a maintenance data port from an external network maintenance station.

12. The method of claim 10 further comprising transferring a set of network configuator program instructions to the memory through a maintenance data port from an external network maintenance station.

13. The method of claim 10 further comprising uploading monitor information about the network data to an external network maintenance station through a maintenance data port.

14. The method of claim 10 wherein the act of automatically configuring the network switch comprises configuring the network switch in response to instructions received from the coprocessor.

15. The method of claim 10 wherein the act of automatically configuring the network switch comprises configuring the network switch in response to instructions received from an external network maintenance station through a maintenance data port.