发明名称 |
Method, system and program product for actively managing central queue buffer allocation using a backpressure mechanism |
摘要 |
Method, system and program product are provided for packet flow control for a switching node of a data transfer network. The method includes actively managing space allocations in a central queue of a switching node allotted to the ports of the switching node based on the amount of unused space currently available in the central queue and an amount of currently-vacant storage space in a storage device of a port. In a further aspect, the method includes separately tracking unallocated space and vacated allocated space, which had been used to buffer packets received by the ports but were vacated since a previous management update due to a packet being removed from the central queue. Each port is offered vacated space that is currently allocated to that port and a quantity of the currently unallocated space in the central queue to distribute to one or more virtual lanes of the port.
|
申请公布号 |
US7545747(B2) |
申请公布日期 |
2009.06.09 |
申请号 |
US20080014141 |
申请日期 |
2008.01.15 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
RIDER SCOT H. |
分类号 |
G01R31/08;H04L12/28;H04L12/56 |
主分类号 |
G01R31/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|