Processing numeric addresses in a network router

• US 7,171,457 B1
• Filed: 09/25/2001
• Issued: 01/30/2007
• Est. Priority Date: 09/25/2001
• Status: Active Grant

• Current Assignee: Juniper Networks Incorporated
• Original Assignee: Juniper Networks Incorporated
• Inventors: Enns, Robert P, Wilson, Reid Evan, Shafer, Philip Austin
• Primary Examiner(s): Jaroenchonwanit; Bunjob
• Assistant Examiner(s): Chankong; Dohm
• Application Number:
  US09/963,806
• Time in Patent Office: 1,953 Days
• Field of Search: 709/245, 709/239, 709/246, 709/227, 709/223, 709/238, 707 1-100, 713/182, 715/515, 370/351, 370/352, 379/93.09, 379/219
• US Class Current: 709/219
• CPC Class Codes: H04L 41/0803 Configuration setting
• CPC Class Codes: H04L 45/60 Router architectures
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]

Abstract

Processing of numeric addresses is facilitated by using a user interface, rather than system modules, to handle name resolution. Processing the addresses at the user interface level avoids delays and packet blocking problems associated with using system modules to perform the task. Relieving the system modules from the responsibility of processing numeric addresses allows them to process other requests, improving overall system efficiency.

Claims

1. A method comprising:

receiving output in an XML-tagged format from a router system;

querying a server selected as a function of a type of the output; and

providing a response from the server to a user,

wherein querying a server selected as a function of the type of the output comprises invoking a command line interface (CLI) module to issue a query to the server.

2. The method of claim 1, wherein the output is a numeric address.

3. The method of claim 2, further comprising:

querying a name server selected as a function of the type of the output;

receiving from the name server a symbolic name associated with the numeric address; and

providing the symbolic name as the response to the user.

4. The method of claim 2, further comprising:

querying an owner database selected as a function of the type of the output;

receiving from the owner database an identification of an owner associated with the numeric address; and

providing the identification of the owner as the response to the user.

5. The method of claim 2, further comprising:

querying a router policy database selected as a function of the type of the output;

receiving from the router policy database an identification of one or more router policies associated with the numeric address; and

providing the identification of the one or more router policies as the response to the user.

6. The method of claim 1, further comprising rendering the output in a text format different from the format describing a type of the output before querying the server.

7. The method of claim 6, wherein the text format is selected from the group consisting of an ASCII format, a UTF-8 format, and a Unicode format.

8. The method of claim 1, wherein the output comprises a listing of network peers identified by numeric addresses.

9. A method for processing an address, the method comprising:

receiving a numeric address in an XML-tagged format from a router system module;

querying a name server to resolve the numeric address to a symbolic name;

providing the symbolic name from the server to a user; and

rendering the numeric address in a text format different from the XML-tagged format before querying the name server.

10. The method of claim 9, wherein the text format is selected from the group consisting of an ASCII format, a UTF-8 format, and a Unicode format.

11. The method of claim 9, wherein the numeric address identifies a network peer.

12. A method for processing an address, the method comprising:

receiving a command in a user interface module;

invoking a system module to process the command;

receiving an XML-tagged IP address from the system module;

querying a domain name server to resolve the IP address to a symbolic name, wherein the IP address identifies a network peer; and

providing the symbolic name from the server to a user.

13. The method of claim 12, further comprising rendering the IP address in a text format different from an XML-tagged format of the IP address before querying the domain name server.

14. The method of claim 13, wherein the text format is selected from the group consisting of an ASCII format, a UTF-8 format, and a Unicode format.

15. A processor-readable data storage medium comprising instructions for causing a programmable processor to:

receive output from a router system module in an XML-tagged format;

query a server selected as a function of a type of the output; and

provide a response from the server to a user,

wherein querying a server selected as a function of the type of the output comprises invoking a command line interface (CLI) module to issue a query to the server.

16. The processor-readable medium of claim 15, wherein the output is a numeric address.

17. The processor-readable medium of claim 16, further comprising instructions for causing the programmable processor to:

query a name server selected as a function of the type of the output;

receive from the name server a symbolic name associated with the numeric address; and

provide the symbolic name as the response to the user.

18. The processor-readable medium of claim 15, further comprising instructions for causing the programmable processor to:

query an owner database selected as a function of the type of the output;

receive from the owner database an identification of an owner associated with the numeric address; and

provide the identification of the owner as the response to the user.

19. The processor-readable medium of claim 15, further comprising instructions for causing the programmable processor to:

query a router policy database selected as a function of the type of the output;

receive from the router policy database an identification of one or more router policies associated with the numeric address; and

provide the identification of the one or more router policies as the response to the user.

20. The processor-readable medium of claim 15, further comprising instructions for causing the programmable processor to render the output in a text format different from the format describing a type of the output before querying the server.

21. The processor-readable medium of claim 20, wherein the text format is selected from the group consisting of an ASCII format, a UTF-8 format, and a Unicode format.

22. The processor-readable medium of claim 15, wherein the output comprises a listing of network peers identified by numeric addresses.

23. A processor-readable data storage medium comprising instructions for causing a programmable processor to:

receive a numeric address in an XML-tagged format from a router system module;

query a name server to resolve the numeric address to a symbolic name;

render the numeric address in a text format different from the XML-tagged format before querying the name server; and

provide the symbolic name from the server to a user.

24. The processor-readable medium of claim 23, wherein the text format is selected from the group consisting of an ASCII format, a UTF-8 format, and a Unicode format.

25. The processor-readable medium of claim 23, wherein the numeric address identifies a network peer.

26. A processor-readable data storage medium comprising instructions for causing a programmable processor to:

receive a command in a user interface module;

invoke a system module to process the command;

receive an XML-tagged IP address from the system module;

query a domain name server to resolve the IP address to a symbolic name, wherein the IP address identifies a network peer; and

provide the symbolic name from the server to a user.

27. The processor-readable medium of claim 26, further comprising instructions for causing the programmable processor to render the IP address in a text format different from an XML-tagged format of the IP address before querying the domain name server.

28. The processor-readable medium of claim 27, wherein the text format is selected from the group consisting of an ASCII format, a UTF-8 format, and a Unicode format.

29. A routing device comprising:

a client interface to receive an operational request from a network router client; and

a router system module to process the operation request and to provide output to the client interface in an XML-tagged format, wherein the output is a numeric address,

wherein the client interface is configured to query a server selected as a function of a type of the output and to provide a response from the server to the network router client.

30. The routing device of claim 29, wherein the client interface is further configured to:

query a name server selected as a function of the type of the output;

receive from the name server a symbolic name associated with the numeric address; and

provide the symbolic name as the response to the network router client.

31. The routing device of claim 29, wherein the client interface is further configured to:

query an owner database selected as a function of the type of the output;

receive from the owner database an identification of an owner associated with the numeric address; and

provide the identification of the owner as the response to the user.

32. The routing device of claim 29, wherein the client interface is further configured to:

query a router policy database selected as a function of the type of the output;

receive from the router policy database an identification of one or more router policies associated with the numeric address; and

provide the identification of the one or more router policies as the response to the user.

33. A routing device comprising:

a client interface to receive an operational request from a network router client; and

a router system module to process the operational request and to provide output to the client interface in a format that describes a type of the output,

wherein the client interface is configured to query a server selected as a function of the type of the output and to provide a response from the server to the network router client,

wherein the output is provided from the server to the client interface in an XML-tagged format.

34. A routing device comprising:

a client interface to receive an operational request from a network router client; and

a router system module to process the operational request and to provide output to the client interface in an XML-tagged format,

wherein the client interface is configured to query a server selected as a function of a type of the output and to provide a response from the server to the network router client, and

wherein the client interface is further configured to render the output in a text format different from the XML-tagged format before querying the server.

35. The routing device of claim 34, wherein the text format is selected from the group consisting of an ASCII format, a UTF-8 format, and a Unicode format.

36. A routing device comprising:

a client interface to receive an operation request from a network router client; and

a router system module to process the operational request and to provide output to the client interface in an XML-tagged format,

wherein the client interface is configured to query a server selected as a function of a type of the output and to provide a response from the server to the network router client, and

wherein the output comprises a listing of network peers identified by numeric addresses.

37. A routing device comprising:

a client interface to receive an operation request from a network router client; and

a router system module to process the operational request and to provide output to the client interface in an XML-tagged format,

wherein the client interface is configured to query a server selected as a function of a type of the output and to provide a response from the server to the network router client, and

wherein the system module is a BGP protocol module, an OSPF module, or a firewall filter module.

38. A routing device comprising:

a client interface to receive an operational request from a network router client; and

a router system module to process the operational request and to provide output to the client interface in an XML-tagged format,

wherein the client interface is configured to query a server selected as a function of a type of the output and to provide a response from the server to the network router client, the routing device further comprising a management server module communicatively coupled to the client interface.

39. A routing device comprising:

a client interface to receive an operational request from a network router client; and

a router system module to process the operational request and to provide output to the client interface in an XML-tagged format,

wherein the client interface is configured to query a server selected as a function of a type of the output and to provide a response from the server to the network router client, the routing device further comprising at least one of a chassis module, a device configuration module, and a routing protocol module.

40. A routing device comprising:

a client interface to receive an operational request from a network router client; and

a system module to process the operational request and to provide a numeric address to the client interface in an XML-tagged format,

wherein the client interface is configured to query a name server to resolve the numeric address to a symbolic name and to provide the symbolic name to the network router client.

41. The routing device of claim 40, wherein the system module is a BGP protocol module.

42. The routing device of claim 40, wherein the system module is an OSPF protocol module.

43. The routing device of claim 40, wherein the system module is a firewall filter module.

44. The routing device of claim 40, further comprising a management server module communicatively coupled to the client interface.

45. The routing device of claim 40, further comprising at least one of a chassis module, a device configuration module, and a routing protocol module.

46. A routing device comprising:

a client interface to receive an operational request from a network router client; and

a system module to process the operational request and to provide an XML-tagged IP address to the client interface,

wherein the client interface is configured to query a domain name server to resolve the IP address to a symbolic name and to provide the symbolic name to the network router client.

47. The routing device of claim 46, wherein the system module is a BGP protocol module.

48. The routing device of claim 46, wherein the system module is an OSPF protocol module.

49. The routing device of claim 46, wherein the system module is a firewall filter module.

50. The routing device of claim 46, further comprising a management server module communicatively coupled to the client interface.

51. The routing device of claim 46, further comprising at least one of a chassis module, a device configuration module, and a routing protocol module.

52. A system comprising:

a client interface to receive an operational request from a network router client;

a router system module to process the operational request and to provide output to the client interface in an XML-tagged format; and

a server to provide a response to the client interface;

wherein the client interface is configured to query the server and to provide the response to the network router client.

53. A system comprising:

a client interface to receive an operational request from a network router client;

a system module to process the operational request and to provide a numeric address to the client interface in an XML-tagged format; and

a name server to resolve the numeric address to a symbolic name and to provide the symbolic name to the client interface,

wherein the client interface is configured to provide the response to the network router client.

54. A system comprising:

a client interface to receive an operational request from a network router client;

a system module to process the operational request and to provide an XML-tagged IP address to the client interface; and

a domain name server to resolve the IP address to a symbolic name and to provide the symbolic name to the client interface,

wherein the client interface is configured to provide the response to the network router client.