Method and apparatus for performing connection management with multiple stacks

• US 20040190533A1
• Filed: 03/27/2003
• Published: 09/30/2004
• Est. Priority Date: 03/27/2003
• Status: Active Grant

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Modi, Prashant, Hilland, Jeffrey R., Barron, Dwight L., Biswas, Ambitabha, Hampton, Kathryn, Yip, Yiu
• Granted Patent: US 7,554,993 B2
• Time in Patent Office: Days
• US Class Current: 370/400
• CPC Class Codes: H04L 2101/60 Types of network addresses
• CPC Class Codes: H04L 2101/686 using dual-stack hosts, e.g. in Internet protocol version 4 [IPv4]/Internet protocol version 6 [IPv6] networks
• CPC Class Codes: H04L 49/90 Buffering arrangements
• CPC Class Codes: H04L 49/9063 Intermediate storage in different physical parts of a node or terminal
• CPC Class Codes: H04L 61/2514 between local and global IP addresses
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level

Abstract

The disclosed embodiments relate to a communication device for use in a node of a system having a plurality of nodes. Each of the plurality of nodes may include network interface controllers (“NICs”) and each of the NICs may have a public identifier and a private identifier associated therewith. A first protocol stack may operate according to a first protocol that is associated with the public identifier and a second protocol stack may operate according to a second protocol that is associated with the private identifier. A storage device may associate the public identifier of one or more of the NICs with the first protocol stack and the private identifier of one or more of the NICs with the second protocol stack. Received messages that incorporate the public identifier may be directed to the first protocol stack and messages that incorporate the private identifier may be directed to the second protocol stack.

Claims

1. A communication device for use in a node of a system having a plurality of nodes, each of the plurality of nodes having a network interface controller (“

NIC”

), each of the NICs being associated with a public identifier and a private identifier, the communication device comprising;

a first protocol stack that is adapted to operate according to a first protocol, the first protocol being associated with the public identifier;

a second protocol stack that is adapted to operate according to a second protocol, the second protocol being associated with the private identifier;

a storage device that associates the public identifier of at least one NIC with the first protocol stack;

a storage device that associates the private identifier of at least one NIC with the second protocol stack; and

wherein messages that incorporate the public identifier are directed to the first protocol stack and messages that incorporate the private identifier are directed to the second protocol stack.

2. The communication device set forth in claim 1, wherein the public identifier and private identifier associated with each of the NICs are both associated with a single communication port of the NIC.

3. The communication device set forth in claim 1, wherein the first protocol is the transmission control protocol (“

TCP”

).

4. The communication device set forth in claim 1, wherein the second protocol is the WinSock Direct (“

WSD”

) protocol.

5. The communication device set forth in claim 1, wherein the public identifier and the private identifier are media access control (“

MAC”

) addresses.

6. The communication device set forth in claim 1, wherein the public identifier and the private identifier are Internet Protocol (“

IP”

) addresses.

7. The communication device set forth in claim 1, wherein the storage device that associates the public identifier of at least one NIC with the first protocol stack and the storage device that associates the private identifier of at least one NIC with the second protocol stack are the same storage device.

8. A computer network, comprising:

a plurality of computer systems;

at least one input/output device;

a switch network that connects the plurality of computer systems and the at least one input/output device for communication; and

wherein the plurality of computer systems and the at least one input/output device comprise a network interface controller (“

NIC”

), each of the NICs having associated therewith a public identifier and a private identifier;

a first protocol stack that is adapted to operate according to a first protocol, the first protocol being associated with the public identifier;

a second protocol stack that is adapted to operate according to a second protocol, the second protocol being associated with the private identifier;

a storage device that associates the public identifier of at least one NIC with the first protocol stack;

a storage device that associates the private identifier of at least one NIC with the second protocol stack; and

wherein messages that incorporate the public identifier are directed to the first protocol stack and messages that incorporate the private identifier are directed to the second protocol stack.

9. The computer network set forth in claim 8, wherein the public identifier and private identifier associated with each of the NICs are both associated with a single communication port of the NIC.

10. The computer network set forth in claim 8, wherein the first protocol is the transmission control protocol (“

TCP”

).

11. The computer network set forth in claim 8, wherein the second protocol is the WinSock Direct (“

WSD”

) protocol.

12. The computer network set forth in claim 8, wherein the public identifier and the private identifier are media access control (“

MAC”

) addresses.

13. The computer network set forth in claim 8, wherein the public identifier and the private identifier are Internet Protocol (“

IP”

) addresses.

14. The computer network set forth in claim 8, wherein the storage device that associates the public identifier of at least one NIC with the first protocol stack and the storage device that associates the private identifier of at least one NIC with the second protocol stack are the same storage device.

15. A method of communicating in a computer network having a plurality of nodes, each of the plurality of nodes having a plurality of network interface controllers (“

NICs”

), each of the NICs having associated therewith a public identifier and a private identifier, the method comprising;

defining a first protocol stack to operate according to a first protocol, the first protocol being associated with the public identifier;

defining a second protocol stack to operate according to a second protocol, the second protocol being associated with the private identifier;

storing the public identifier of at least one NIC in association with the first protocol stack;

storing the private identifier of at least one NIC in association with the second protocol stack; and

directing messages that incorporate the public identifier to the first protocol stack and messages that incorporate the private identifier to the second protocol stack.

16. The method set forth in claim 15, comprising associating the public identifier and private identifier for each of the NICs with a single communication port of the NIC.

17. The method set forth in claim 15, comprising defining the first protocol to be the transmission control protocol (“

TCP”

).

18. The method set forth in claim 15, comprising defining the second protocol to be the WinSock Direct (“

WSD”

) protocol.

19. The method set forth in claim 15, comprising defining the public identifier and the private identifier to be media access control (“

MAC”

) addresses.

20. The method set forth in claim 15, comprising defining the public identifier and the private identifier to be Internet Protocol (“

IP”

) addresses.

21. A communication device for use in a first node of a system having a plurality of nodes, each of the plurality of nodes having a network interface controller (“

NIC”

), each of the NICs being associated with a public identifier and a private identifier, the communication device comprising;

a first protocol stack that is adapted to operate according to a first protocol, the first protocol being associated with the public identifier;

a second protocol stack that is adapted to operate according to a second protocol, the second protocol being associated with the private identifier,

a storage device that associates the public identifier of at least one NIC with the first protocol stack;

a storage device that associates the private identifier of at least one NIC with the second protocol stack; and

wherein a message is directed to the second protocol stack if the public identifier indicates that the second protocol stack is adapted to receive the message and the message is directed to the first protocol stack if the public identifier indicates that the second protocol stack is not adapted to receive the message.

22. The communication device set forth in claim 21, wherein the public identifier and private identifier associated with each of the NICs are both associated with a single communication port of the NIC.

23. The communication device set forth in claim 21, wherein the first protocol is the transmission control protocol (“

TCP”

).

24. The communication device set forth in claim 21, wherein the second protocol is the WinSock Direct (“

WSD”

) protocol.

25. The communication device set forth in claim 21, wherein the public identifier and the private identifier are media access control (“

MAC”

) addresses.

26. The communication device set forth in claim 21, wherein the public identifier and the private identifier are Internet Protocol (“

IP”

) addresses.

27. The communication device set forth in claim 21, wherein the storage device that associates the public identifier of at least one NIC with the first protocol stack and the storage device that associates the private identifier of at least one NIC with the second protocol stack are the same storage device.