公开(公告)号：WO2002084920A2

公开(公告)日：2002-10-24

申请号：PCT/US2001/050498

申请日：2001-12-19

Applicant: NETWORK APPLIANCE, INC.

Inventor： BANGA, Gaurav

IPC: H04L

CPC classification number: H04L69/16 ,  H04L43/0841 ,  H04L43/0864 ,  H04L43/106 ,  H04L69/163

Abstract: This invention comprises auto-diagnosis logic that can be implemented in operating systems in an appliance-like auto-diagnosis module coupled to the TCP receiver, the TCP sender or both. TCP events are sampled and a set of statistics on these events is maintained. Receiver side TCP diagnostic techniques include detecting sender's re-transmission timeouts, evaluating the average size of packets being received, determining if a receiver is a bottleneck,and performing other evaluations of an incoming data stream. Sender side diagnostic techniques include flagging transmission timeouts, monitoring the average size of a transmitted packet, evaluating if the advertised window accounts for the delay-bandwidth products of the network connecting the receiver and the sender systems, performing bottleneck checks, and other evaluations of an outgoing data stream. The results are aggregated using system attributes. Systems with common problem areas and attributes. Systems with common problem areas and attributes are grouped together. ThePCT auto-diagnosis logic can be performed on-line ir iff-line.

Abstract translation: 本发明包括可以在耦合到TCP接收器，TCP发送器或两者的类似设备的自动诊断模块中的操作系统中实现的自动诊断逻辑。 对TCP事件进行采样，并维护一组关于这些事件的统计信息。 接收端TCP诊断技术包括检测发送者的重发超时，评估正在接收的分组的平均大小，确定接收机是否是瓶颈，以及对输入数据流进行其他评估。 发送方诊断技术包括标记传输超时，监视传输分组的平均大小，评估所通告的窗口是否考虑到连接接收机和发送方系统的网络的延迟带宽产品，执行瓶颈检查和其他评估 传出数据流。 使用系统属性聚合结果。 具有共同问题领域和属性的系统。 具有共同问题领域和属性的系统分组在一起。 PCT自动诊断逻辑可以在线进行if if-line。

公开(公告)号：EP1350352A2

公开(公告)日：2003-10-08

申请号：EP01273755.7

申请日：2001-12-19

Applicant: Network Appliance, Inc.

Inventor： BANGA, Gaurav

IPC: H04L1/00

CPC classification number: H04L69/16 ,  H04L43/0841 ,  H04L43/0864 ,  H04L43/106 ,  H04L69/163

Abstract: This invention comprises auto-diagnosis logic that can be implemented in operating systems in an appliance-like auto-diagnosis module coupled to the TCP receiver, the TCP sender or both. TCP events are sampled and a set of statistics on these events is maintained. Receiver side (205) TCP diagnostic techniques include detecting sender's re-transmission timeouts, evaluating the average size of packets being received (230), determining if a receiver is a bottleneck,and performing other evaluations (235) of an incoming data stream. Sender side diagnostic techniques include flagging transmission timeouts, monitoring the average size of a transmitted packet, evaluating if the advertised window accounts for the delay-bandwidth product of the network connecting the receiver and the sender systems, performing bottleneck checks, and other evaluations of an outgoing data stream. The results are aggregated using system attributes. Systems with common problem areas and attributes are grouped together. The TCP auto-diagnosis logic can be performed on-line or off-line.

公开(公告)号：EP1350352B1

公开(公告)日：2011-11-02

申请号：EP01273755.7

申请日：2001-12-19

Applicant: Network Appliance, Inc.

Inventor： BANGA, Gaurav

IPC: H04L1/00 ,  H04L12/26 ,  H04L29/06

CPC classification number: H04L69/16 ,  H04L43/0841 ,  H04L43/0864 ,  H04L43/106 ,  H04L69/163

Abstract: This invention comprises auto-diagnosis logic that can be implemented in operating systems in an appliance-like auto-diagnosis module coupled to the TCP receiver, the TCP sender or both. TCP events are sampled and a set of statistics on these events is maintained. Receiver side (205) TCP diagnostic techniques include detecting sender's re-transmission timeouts, evaluating the average size of packets being received (230), determining if a receiver is a bottleneck,and performing other evaluations (235) of an incoming data stream. Sender side diagnostic techniques include flagging transmission timeouts, monitoring the average size of a transmitted packet, evaluating if the advertised window accounts for the delay-bandwidth product of the network connecting the receiver and the sender systems, performing bottleneck checks, and other evaluations of an outgoing data stream. The results are aggregated using system attributes. Systems with common problem areas and attributes are grouped together. The TCP auto-diagnosis logic can be performed on-line or off-line.