Directory-enabled device management

• US 7,024,476 B1
• Filed: 09/13/2000
• Issued: 04/04/2006
• Est. Priority Date: 09/13/2000
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Page, Martin, Wilson, Richard Alexander Jr.
• Primary Examiner(s): Cardone, Jason
• Assistant Examiner(s): Duong, Thomas
• Application Number:
  US09/661,030
• Time in Patent Office: 2,029 Days
• Field of Search: 709223-225, 709/230, 370465-469
• US Class Current: 709/224
• CPC Class Codes: H04L 41/0809 Plug-and-play configuration
• CPC Class Codes: H04L 41/0856 by backing up or archiving configuration information
• CPC Class Codes: H04N 1/00236 using an image reading or reproducing device, e.g. a facsimile reader or printer, as a local input to or local output from a computer image input to or image output from a computer via a network H04N1/00209
• CPC Class Codes: H04N 1/32529 of different type, e.g. internal and external devices
• CPC Class Codes: H04N 1/32539 Detecting or indicating the status of the output devices

Abstract

Managing a plurality of network devices on a network by detecting the presence of at least one of the plurality of network devices on the network by using a first communication protocol, obtaining, by using the first communication protocol, an information block from each of the detected network devices, wherein the information block contains information related to the corresponding network device, formatting each information block into a directory entry, and sending each directory entry to a directory server via a second communication protocol.

Claims

1. A method for managing a plurality of network devices on a network, said method comprising the steps of:

detecting the presence of at least one of the plurality of network devices on the network by using a first communication protocol;

obtaining, by using the first communication protocol, from the detected network device, information related to the corresponding network device;

formatting the obtained information into a directory entry;

sending the directory entry to a directory server by using a second communication protocol;

monitoring for issuance of an update message from the directory server indicating that a directory entry has been updated in the directory server;

obtaining, in the case that an update message is issued, the updated directory entry from the directory server by using the second communication protocol;

extracting updated data from the updated directory entry; and

sending the updated data to the network device which corresponds to the updated directory entry for placement into the information of the corresponding network device,

wherein the directory entry is formatted according to a standardized schema, and wherein the standardized schema of the directory entry includes a source-flag to indicate the source of the directory entry,

wherein the source-flag in each directory entry is utilized by a directory plug-in module which interfaces with the directory server and which monitors the directory server for detecting when a directory entry is updated,

wherein, in the case that an updated directory entry is detected and the corresponding source-flag of the updated directory entry is set to a low state, the directory plug-in module sends a multicast message over the network which indicates that an updated directory entry has been detected,

wherein, in the case that an updated directory entry is detected and the corresponding source-flag of the updated directory entry is set to a high state, the directory plug-in module resets the source-flag of the updated directory entry to the low state,

wherein the network includes an embedded-LDAP network device which contains an LDAP client, wherein the embedded-LDAP network device utilizes LDAP to send a directory entry to the directory server, the directory entry including a source-flag which is set to a high state, and

wherein, in the case that an updated directory entry corresponding to the embedded-LDAP network device is detected by the directory plug-in module and the corresponding source-flag of the updated directory entry is set to a low state, the directory plug-in module sends a unicast message over the network to the embedded-LDAP network device to indicate that an updated directory entry has been detected.

2. A method according to claim 1, wherein the embedded-LDAP network device obtains, in response to the unicast message from the directory plug-in module, the updated directory entry from the directory server.

3. A directory-enabled network device for managing a plurality of network devices on a network, comprising:

a program memory for storing executable process steps, the executable process steps comprising, (a) detecting the presence of at least one of the plurality of network devices on the network by using a first communication protocol, (b) obtaining, by using the first communication protocol, from the detected network device, information related to the corresponding network device, (c) formatting the obtained information into a directory entry, (d) sending the directory entry to a directory server by using a second communication protocol, (e) monitoring, for issuance of an update message from the directory server indicating that a directory entry has been updated in the directory server, (f) obtaining, in the case that an update message is issued, the updated directory entry from the directory server by using the second communication protocol, (g) extracting updated data from the updated directory entry, and (h) sending the updated data to the network device which corresponds to the updated directory entry for placement into the information of the corresponding network device,

wherein the directory entry is formatted according to a standardized schema, and wherein the standardized schema of the directory entry includes a source-flag to indicate the source of the directory entry; and

a processor for executing the process steps stored in said program memory,

wherein the source-flag in each directory entry is utilized by a directory plug-in module which interfaces with the directory server and which monitors the directory server for detecting when a directory entry is updated,

wherein, in the case that an updated directory entry is detected and the corresponding source-flag of the updated directory entry is set to a low state, the directory plug-in module sends a multicast message over the network which indicates that an updated directory entry has been detected, and

wherein, in the case that an updated directory entry is detected and the corresponding source-flag of the updated directory entry is set to a high state, the directory plug-in module resets the source-flag of the updated directory entry to the low state,

wherein the network includes an embedded-LDAP network device which contains an LDAP client, wherein the embedded-LDAP network device utilizes LDAP to send a directory entry to the directory server, the directory entry including a source-flag which is set to a high state, and

wherein, in the case that an updated directory entry corresponding to the embedded-LDAP network device is detected by the directory plug-in module and the corresponding source-flag of the updated directory entry is set to a low state, the directory plug-in module sends a unicast message over the network to the embedded-LDAP network device to indicate that an updated directory entry has been detected.

4. A device according to claim 3, wherein the embedded-LDAP network device obtains, in response to the unicast message from the directory plug-in module, the updated directory entry from the directory server.

5. Computer-executable process steps stored on a computer readable medium, said computer-executable process steps for managing a plurality of network devices on a network said computer-executable process steps comprising:

detecting the presence of at least one of the plurality of network devices on the network by using a first communication protocol;

obtaining by using the first communication protocol, from the detected network device, information related to the corresponding network device;

formatting the obtained information into a directory entry;

sending the directory entry to a directory server by using a second communication protocol;

monitoring, for issuance of an update message from the directory server indicating that a directory entry has been updated in the directory server;

obtaining, in the case that an update message is issued, the updated directory entry from the directory server by using the second communication protocol;

extracting updated data from the updated directory entry; and

sending the updated data to the network device which corresponds to the updated directory entry for placement into the information of the corresponding network device,

wherein the directory entry is formatted according to a standardized schema, and wherein the standardized schema of the directory entry includes a source-flag to indicate the source of the directory entry,

wherein the source-flag in each directory entry is utilized by a directory plug-in module which interfaces with the directory server and which monitors the directory server for detecting when a directory entry is updated,

wherein, in the case that an updated directory entry is detected and the corresponding source-flag of the updated directory entry is set to a low state, the directory plug-in module sends a multicast message over the network which indicates that an updated directory entry has been detected,

wherein, in the case that an updated directory entry is detected and the corresponding source-flag of the updated directory entry is set to a high state, the directory plug-in module resets the source-flag of the updated directory entry to the low state,

wherein the network includes an embedded-LDAP network device which contains an LDAP client, wherein the embedded-LDAP network device utilizes LDAP to send a directory entry to the directory server, the directory entry including a source-flag which is set to a high state, and

wherein, in the case that an updated directory entry corresponding to the embedded-LDAP network device is detected by the directory plug-in module and the corresponding source-flag of the updated directory entry is set to a low state, the directory plug-in module sends a unicast message over the network to the embedded-LDAP network device to indicate that an updated directory entry has been detected.

6. Computer-executable process steps according to claim 5, wherein the embedded-LDAP network device obtains, in response to the unicast message from the directory plug-in module, the updated directory entry from the directory server.

7. A computer-readable medium which stores computer-executable process steps, the computer-executable process steps to manage a plurality of network devices on a network, said computer-executable process steps comprising:

detecting the presence of at least one of the plurality of network devices on the network by using a first communication protocol;

obtaining, by using the first communication protocol, from the detected network device, information related to the corresponding network device;

formatting the obtained information into a directory entry;

sending the directory entry to a directory server by using a second communication protocol;

monitoring, by using a third communication protocol, for issuance of an update message from the directory server indicating that a directory entry has been updated in the directory server;

obtaining, in the case that an update message is issued, the updated directory entry from the directory server by using the second communication protocol;

extracting updated data from the updated director entry; and

sending the updated data to the network device which corresponds to the updated directory entry for placement into the information of the corresponding network device,

wherein the directory entry is formatted according to a standardized schema, and wherein the standardized schema of the directory entry includes a source-flag to indicate the source of the directory entry,

wherein the source-flag in each directory entry is utilized by a directory plug-in module which interfaces with the directory server and which monitors the directory server for detecting when a directory entry is updated,

wherein, in the case that an updated directory entry is detected and the corresponding source-flag of the updated directory entry is set to a low state, the directory plug-in module sends a multicast message over the network which indicates that an updated directory entry has been detected, and

wherein, in the case that an updated directory entry is detected and the corresponding source-flag of the updated directory entry is set to a high state, the directory plug-in module resets the source-flag of the updated directory entry to the low state,

wherein the network includes an embedded-LDAP network device which contains an LDAP client, wherein the embedded-LDAP network device utilizes LDAP to send a directory entry to the directory server, the directory entry including a source-flag which is set to a high state, and

wherein, in the case that an updated directory entry corresponding to the embedded-LDAP network device is detected by the directory plug-in module and the corresponding source-flag of the updated directory entry is set to a low state, the directory plug-in module sends a unicast message over the network to the embedded-LDAP network device to indicate that an updated directory entry has been detected.

8. A computer-readable medium according to claim 7, wherein the embedded-LDAP network device obtains, in response to the unicast message from the directory plug-in module, the updated directory entry from the directory server.