公开(公告)号：JP2008141777A

公开(公告)日：2008-06-19

申请号：JP2007329005

申请日：2007-12-20

Applicant: Network Appliance Inc ,  ネットワーク アプライアンス, インコーポレイテッド

Inventor： BANGA GAURAV

IPC: G06F13/00 ,  H04L12/56 ,  H04L12/26 ,  H04L29/06 ,  H04L29/14

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

Abstract: PROBLEM TO BE SOLVED: To provide a method and a system for detecting and diagnosing problems relating to TCP.
SOLUTION: The disclosed method includes: how many times a re-transmission timeout occurs in accordance with a time and an order of TCP packets transmitted from a TCP transmitting device via a network path and received in a TCP receiving device; and displaying that a first performance problem occurs because of the network path when the number of times of retransmission timeout occurrence exceeds a predetermined threshold value.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供用于检测和诊断与TCP有关的问题的方法和系统。 解决方案：所公开的方法包括：根据从TCP发送设备经由网络路径发送并在TCP接收设备中接收的TCP分组的时间和顺序发生重发超时的次数; 并且当重发超时发生次数超过预定阈值时，显示由于网络路径而出现第一性能问题。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2004038922A

公开(公告)日：2004-02-05

申请号：JP2002379361

申请日：2002-12-27

Applicant: Network Appliance Inc ,  ネットワーク・アプライアンス・インコーポレイテッド

Inventor： BANGA GAURAV ,  MARK SMITH ,  MUHLSTEIN MARK

IPC: G06F12/00 ,  H04L29/06 ,  H04L29/12

CPC classification number: H04L61/2061 ,  H04L29/06 ,  H04L29/12018 ,  H04L29/12283 ,  H04L61/10 ,  H04L67/42

Abstract: PROBLEM TO BE SOLVED: To enable a server, such as a filer, configured with a plurality of virtual servers, such as virtual filers (vfilers), to participate in a plurality of private network address spaces with potentially overlapping network addresses. SOLUTION: The selection of an appropriate vfiler is enabled in such a manner that a service request within a private address space is secure and distinct from other private address spaces supported by the filer. An IP space refers to each distinct address space in which the filer and its storage operating system participate. An IP space identifier is applied to translation procedures that enable the selection of a correct vfiler for processing an incoming request and the selection of an appropriate routing table for processing an outgoing request. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2003223346A

公开(公告)日：2003-08-08

申请号：JP2002379209

申请日：2002-12-27

Applicant: NETWORK APPLIANCE INC

Inventor： MUHLSTEIN MARK ,  BANGA GAURAV

IPC: G06F12/00 ,  G06F9/46 ,  H04L29/06 ,  H04L29/08

Abstract: PROBLEM TO BE SOLVED: To provide an architecture for providing ability to create and maintain the multiple instances of virtual servers such as virtual filers (vfiler) in one server such as a filer. SOLUTION: A vfiler is a logical partitioning of the network and storage resources of a filer platform to establish the instances of multi-protocol servers. Each vfiler is allocated a subset of dedicate units of storage resources such as volumes or logical sub-volumes (qtree) and one or more network address resources. Each vfiler is also allowed to perform shared access to the file system resource of a storage operating system. To ensure controlled access to the allocated and shared resources, each vfiler is further assigned its own security domain for each access protocol. A vfiler boundary check is performed by the file system to verify that a current vfiler is allowed to perform access to certain storage resources for a requested file stored on the filer platform. COPYRIGHT: (C)2003,JPO

公开(公告)号：WO02084920A3

公开(公告)日：2003-05-08

申请号：PCT/US0150498

申请日：2001-12-19

Applicant: NETWORK APPLIANCE INC

Inventor： BANGA GAURAV

IPC: G06F13/00 ,  H04L12/26 ,  H04L29/06 ,  G06F15/16 ,  G06F11/00

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.

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。 接收机侧（205）TCP诊断技术包括检测发送者的重传超时，评估接收到的分组的平均大小（230），确定接收机是否是瓶颈，以及执行进入数据流的其他评估（235）。 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了连接接收机和发送者系统的网络的延迟带宽乘积，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分组在一起。 TCP自动诊断逻辑可以在线还是离线执行。

公开(公告)号：DE60238104D1

公开(公告)日：2010-12-09

申请号：DE60238104

申请日：2002-12-23

Applicant: NETWORK APPLIANCE INC

Inventor： MUHLSTEIN MARK ,  BANGA GAURAV ,  SMITH MARK

IPC: G06F12/00 ,  H04L29/12 ,  H04L29/06

公开(公告)号：EP1350352A4

公开(公告)日：2006-01-11

申请号：EP01273755

申请日：2001-12-19

Applicant: NETWORK APPLIANCE INC

Inventor： BANGA GAURAV

IPC: G06F13/00 ,  H04L12/26 ,  H04L29/06 ,  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.