Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2007011591) PROVISIONING AND REDUNDANCY FOR RFID MIDDLEWARE SERVERS
Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

I CLAIM:

1. A provisioning method, comprising:
receiving a DHCPDISCOVER request from a radio frequency identification ("RFID") middleware server;
determining, based at least in part upon the DHCPDISCOVER request, appropriate provisioning data for the RFID middleware server; and
providing the RFID middleware server with at least some of the appropriate provisioning data.

2. The method of claim 1 , wherein the determining step comprises determining at least one of (a) whether the RFID middleware server has been moved; (b) whether the RFID middleware server has been replaced; and (c) whether the RFID middleware server is requesting a complete configuration.

3. The method of claim 1, wherein the determining step comprises inspecting

DHCP Option data in the DHCPDISCOVER request.

4. The method of claim 1, wherein it is determined in the determining step that there has been a change in at least one of the RFID middleware server ID and the location information, and wherein the provisioning step comprises providing a complete set of provisioning data.

5. The method of claim 1, wherein the determining step comprises:
determining a first ID and first location information from the
DHCPDISCOVER request; and
comparing the first ID and first location information with stored second ID and second location information for a known RFID middleware server.

6. The method of claim 5, wherein the first and second ID comprise at least one of an EPC code and a MAC address.

7. The method of claim 5, wherein the first and second location information comprise at least one of a switch identifier, a switch port identifier, DHCP option information and DHCP header information.

8. A network management method, comprising:
• determining a failure of a first radio frequency identification ("RFID") middleware server;
disabling a first switch port of a switch in communication with the first RFID middleware server;
allocating RFID devices formerly associated with the first RFID middleware server to a second RFID middleware server;
enabling a second switch port in communication with the second RFID middleware server; and
automatically provisioning the second RFID middleware server.

9. The method of claim 8, wherein at least one of the determining, disabling, allocating and enabling steps are performed automatically.

10. The method of claim 8, wherein the determining step comprises at least one of receiving a change-of-state message from the switch and a failure determination by a monitor.

11. The method of claim 10, wherein the change-of-state message comprises at least one of an SNMP trap and an indication of a lack of heartbeat.

12. A central server, comprising:
at least one memory for storing middleware server configuration, ID and location information, and for storing associations of middleware servers and RFID devices;
a port configured for communication with an RFID network, the RFID network comprising an active middleware server in communication with a switch via a first switch port, a standby middleware server in communication with the switch via a second switch port and a plurality of RFID devices associated with and in communication with the active middleware server; and at least one logic device configured to:
determine a failure of the first middleware server;
instruct the switch to disable the first port;
re-assign at least a portion of the plurality of RFID devices to the standby middleware server;
instruct the switch to enable the second port; and
provision the standby middleware server.

13. A network management method, comprising:
inspecting a DHCPDISCOVER request of a radio frequency identification

("RFID") device;
provisioning the RFID device based, at least in part, upon location information in the DHCPDISCOVER request; and
determining whether a middleware server associated with the RFID device supports DHCP ForceRenew.

14. The method of claim 13, further comprising the step of reprovisioning the middleware server via DHCP ForceRenew when it is detennined that the middleware server supports DHCP ForceRenew.

J.5. The method of claim 13, further comprising the step of reprovisioning the middleware server during a next DHCP lease renewal when it is determined that the middleware server does not support DHCP ForceRenew.

16. A network device, comprising:
means for inspecting a DHCPDISCOVER request of a radio frequency identification ("RFID") device;
means for provisioning the RFID device based, at least in part, upon location information in the DHCPDISCOVER request; and
means for determining whether a middleware server associated with the RFID device supports DHCP ForceRenew.

17. The network device of claim 16, further comprising means for reprovisioning the middleware server via DHCP ForceRenew when the determining means determines that the middleware server supports DHCP ForceRenew.

18. A network device, comprising:
means for receiving a DHCPDISCOVER request from an RFID middleware server;
means for determining, based at least in part upon the DHCPDISCOVER request, appropriate provisioning data for the RFID middleware server; and
means for providing the RFID middleware server with at least some of the appropriate provisioning data.

19. The network device of claim 18, wherein the determining means comprises means for determining at least one of (a) whether the RFID middleware server has been moved; (b) whether the RFID middleware server has been replaced; and (c) whether the RFID middleware server is requesting a complete configuration.

20. The network device of claim 18, wherein the determining means comprises means for inspecting DHCP Option data in the DHCPDISCOVER request.

21. The network device of claim 18, wherein the determining means determines that there has been a change in at least one of the RFID middleware server ID and the location information, and wherein the provisioning means provides a complete set of provisioning data.