公开(公告)号：DE60303026T2

公开(公告)日：2006-07-27

申请号：DE60303026

申请日：2003-04-01

Applicant: IBM

Inventor： BEUKEMA LEROY ,  GREGG ANTHONY ,  NEAL MARVIN ,  RECIO JOHN

IPC: G06F9/54 ,  G06F13/42 ,  G06F13/40 ,  H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08

Abstract: A method, system, and product in a data processing system are disclosed for managing data transmitted from a first end node to a second end node included in the data processing system. A logical connection is established between the first end node and the second end node prior to transmitting data between the end nodes. An instance number is associated with this particular logical connection. The instance number is included in each packet transmitted between the end nodes while this logical connection remains established. The instance number remains constant during this logical connection. The instance number is altered, such as by incrementing it, each time a logical connection between these end nodes is reestablished. Thus, each packet is associated with a particular instance of the logical connection. When a packet is received, the instance number included in the packet may be used to determine whether the packet is a stale packet transmitted during a previous logical connection between these end nodes.

公开(公告)号：DE60212626D1

公开(公告)日：2006-08-03

申请号：DE60212626

申请日：2002-03-18

Applicant: IBM

Inventor： CRADDOCK DAVID ,  ELKO ARLEN ,  GREGG ANTHONY ,  PFISTER FRANCIS ,  RECIO JOHN

IPC: G06F13/40 ,  H04L12/28 ,  G06F9/445

Abstract: A method and system for a distributed computing system having components like end nodes, switches, routers and links interconnecting packets over the interconnecting links. The switches and routers interconnect the end nodes and route the packets to the appropriate end node. The end nodes reassemble the packets into a message at a destination. A mechanism is provided to allow a single physical component to appear as multiple components each with unique control levels. These components may be host channel adapters (HCAs), target channel adapters (TCAs) or switches. A method and system for end node partitioning for a physical element is provided. A configuration of the physical element is selected. A port associated with the physical element is probed, wherein the port is probed with a subnet management packet by a subnet manager. In response to detecting a switch associated with the port, a local identifier is assigned to the port resulting in a configuration change of the physical element.

公开(公告)号：DE60212626T2

公开(公告)日：2007-07-05

申请号：DE60212626

申请日：2002-03-18

Applicant: IBM

Inventor： CRADDOCK DAVID ,  ELKO ARLEN ,  GREGG ANTHONY ,  PFISTER FRANCIS ,  RECIO JOHN

IPC: G06F13/40 ,  H04L12/28 ,  G06F9/445

Abstract: A method and system for a distributed computing system having components like end nodes, switches, routers and links interconnecting packets over the interconnecting links. The switches and routers interconnect the end nodes and route the packets to the appropriate end node. The end nodes reassemble the packets into a message at a destination. A mechanism is provided to allow a single physical component to appear as multiple components each with unique control levels. These components may be host channel adapters (HCAs), target channel adapters (TCAs) or switches. A method and system for end node partitioning for a physical element is provided. A configuration of the physical element is selected. A port associated with the physical element is probed, wherein the port is probed with a subnet management packet by a subnet manager. In response to detecting a switch associated with the port, a local identifier is assigned to the port resulting in a configuration change of the physical element.

公开(公告)号：DE60303026D1

公开(公告)日：2006-02-02

申请号：DE60303026

申请日：2003-04-01

Applicant: IBM

Inventor： BEUKEMA LEROY ,  GREGG ANTHONY ,  NEAL MARVIN ,  RECIO JOHN

IPC: G06F9/54 ,  G06F13/40 ,  G06F13/42 ,  H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08

Abstract: A method, system, and product in a data processing system are disclosed for managing data transmitted from a first end node to a second end node included in the data processing system. A logical connection is established between the first end node and the second end node prior to transmitting data between the end nodes. An instance number is associated with this particular logical connection. The instance number is included in each packet transmitted between the end nodes while this logical connection remains established. The instance number remains constant during this logical connection. The instance number is altered, such as by incrementing it, each time a logical connection between these end nodes is reestablished. Thus, each packet is associated with a particular instance of the logical connection. When a packet is received, the instance number included in the packet may be used to determine whether the packet is a stale packet transmitted during a previous logical connection between these end nodes.