公开(公告)号：US06654372B1

公开(公告)日：2003-11-25

申请号：US09543144

申请日：2000-04-05

申请人： Francis Arts ,  Olivier Didier Duroyon ,  Anthony Matteo Gallo ,  Brahmanand Kumar Gorti ,  Donald Newland Jones ,  Natarajan Vaidhyanathan ,  Colin Beaton Verrilli

发明人： Francis Arts ,  Olivier Didier Duroyon ,  Anthony Matteo Gallo ,  Brahmanand Kumar Gorti ,  Donald Newland Jones ,  Natarajan Vaidhyanathan ,  Colin Beaton Verrilli

IPC分类号： H04L1256

CPC分类号： H04L45/00 ,  H04L45/302

摘要： A controllable mechanism for by-passing Layer 4 (L4) classification is based on the insertion into a set of MAC rules in SA MAC lookup means a set of Layer 4 (L4) Skip Classification Flags. Routing is accomplished by selecting which rule to apply to the packet and reading the state of the corresponding L4 Skip Classification Flag. In response to a first state of said corresponding L4 Skip Classification Flag, performing an L4 classification followed by a routing of the data packet. In response to a second state of said corresponding L4 Skip Classification Flag, reading the state of a Global Classification Flag. In response to a first state of said Global Classification Flag, performing an L4 classification followed by a routing of said data packet. In response to a second state of said Global Classification Flag performing a routing of the data packet. The L4 Skip option change does not use the option change of reading the L4 Skip Classification Flag from the port table, whereas the second embodiment uses this option. The third and fourth embodiments are similar to the first and second embodiments but with the. addition of inserting into a set of Layer 3 (L3) rules in L3 lookup means a set of Layer 4 (L4) Classification Required Flags. The third embodiment does not use the option of reading the L4 Skip Classification Flag from the port table, whereas the fourth embodiment uses this option.

摘要翻译： 用于旁路第4层（L4）分类的可控机制是基于在SA MAC查找中插入一组MAC规则的方法，即一组第4层（L4）跳过分类标志。 通过选择哪个规则应用于分组并读取相应的L4跳过分类标志的状态来完成路由。 响应于所述对应的L4跳过分类标志的第一状态，执行L4分类，然后进行数据分组的路由。 响应于所述对应的L4跳过分类标志的第二状态，读取全局分类标志的状态。 响应于所述全局分类标志的第一状态，执行L4分类，然后进行所述数据分组的路由。 响应于所述全局分类标志的第二状态执行数据分组的路由。 L4跳过选项更改不使用从端口表读取L4跳过分类标志的选项更改，而第二个实施例使用此选项。 第三和第四实施例类似于第一和第二实施例，但是与。 在L3查找中插入到一组第3层（L3）规则中的添加意味着一组第4层（L4）分类要求标志。 第三实施例不使用从端口表读取L4跳过分类标志的选项，而第四实施例使用该选项。

公开(公告)号：US06700883B1

公开(公告)日：2004-03-02

申请号：US09543145

申请日：2000-04-05

申请人： Anthony Matteo Gallo ,  Brahmanand Kumar Gorti ,  Donald Newland Jones ,  Natarajan Vaidhyanathan ,  Colin Beaton Verrilli

发明人： Anthony Matteo Gallo ,  Brahmanand Kumar Gorti ,  Donald Newland Jones ,  Natarajan Vaidhyanathan ,  Colin Beaton Verrilli

IPC分类号： H04L1256

CPC分类号： H04L29/06 ,  H04L69/32

摘要： A controllable mechanism for by-passing Layer 4 (L4) classification is based on the insertion into a set of Layer 3 (L3) rules in an L3 lookup tree set of Layer 4 (L4) Classification Required Flags. The state of the L4 classification flag is set by comparing the L4 classification rule to an IP (Internet Protocol) lookup rule. Routing is accomplished by selecting which rule to apply to the data packet and reading the state of the corresponding L4 Classification Required Flag. In response to a first state of the corresponding L4 Classification Required Flag, an L4 classification is performed followed by a routing of the data packet. In response to a second state of the corresponding L4 Classification Required Flag performing a routing of said data packet. In a second embodiment, the method inserts into a set of L3 rules in L3 lookup means a set L4 Classification Required Flags and Global Flags. A first state of the L4 Classification Required Flag is set when a new rule is added to L4 classification means, the new rule being correlatable to a single entry in L3 lookup means. Routing is accomplished by selecting which rule to apply to the data packet and reading the state of the corresponding L4 classification required flag. In response to a first state of the corresponding L4 classification flag, a L4 classification is performed followed by a routing of the data packet. In response to a second state of the corresponding L4 classification flag, the state of the Global Flag is read, and in response to a first state of the Global flag, a L4 classification is performed followed by a routing of the data packet. In response to a second state of the Global Flag, the data packet is routed.

摘要翻译： 用于旁路第4层（L4）分类的可控机制是基于在第4层（L4）分类要求标志的L3查找树集中插入到一组第3层（L3）规则中。 通过将L4分类规则与IP（因特网协议）查找规则进行比较来设定L4分类标志的状态。 通过选择应用于数据包的规则并读取相应的L4分类要求标志的状态来完成路由。 响应于对应的L4分类要求标志的第一状态，执行L4分类，然后进行数据分组的路由。 响应于相应的L4分类要求标志的第二状态来执行所述数据分组的路由。 在第二实施例中，该方法在L3查找中插入一组L3规则，即集合L4分类要求标志和全局标志。 当将新规则添加到L4分类装置时，设置L4分类要求标志的第一状态，新规则可与L3查找装置中的单个条目相关。 通过选择应用于数据包的规则并读取相应的L4分类所需标志的状态来完成路由。 响应对应的L4分类标志的第一状态，执行L4分类，然后进行数据分组的路由。 响应对应的L4分类标志的第二状态，读取全局标志的状态，并且响应于全局标志的第一状态，执行L4分类，然后进行数据分组的路由。 响应全局标志的第二状态，数据包被路由。

公开(公告)号：US5642515A

公开(公告)日：1997-06-24

申请号：US870026

申请日：1992-04-17

申请人： Donald Newland Jones ,  Robert Alois Kalka, Jr.

发明人： Donald Newland Jones ,  Robert Alois Kalka, Jr.

IPC分类号： G06F13/00 ,  G06F9/50 ,  G06F15/00 ,  G06F15/16 ,  G06F15/177 ,  G06F21/00 ,  H04L29/06 ,  G06F9/46 ,  G06F13/14

CPC分类号： H04L63/08 ,  G06F21/335 ,  G06F21/6218 ,  H04L67/42

摘要： A network server permits clients on the network to access one or more local resources managed by the network server and one or more remote resources managed by one or more respective remote computers coupled to the network server. When a client desires to access any of the resources, the client first requests a session or log-on to the network server by supplying a valid account name and password. Either with the session establishment request or subsequently during the same session, the client requests a connection or access to a resource. The client need not know the location of the resource or the computer (remote or network server) which manages the resource. The network server determines which computer manages the requested resource. If the network server manages the resource, then the network server determines if the connection is available or provides the access as requested and responds to the client. Then, if the client subsequently requests a connection with or access to a resource managed by a remote computer, or if the original request was for a resource managed by the remote computer, the network server sends a session establishment request and connect or access request to the remote computer. The client need not send a separate session establishment request for the remote computer. If the remote computer grants the session, then the client can access the resource managed by the remote computer.

摘要翻译： 网络服务器允许网络上的客户端访问由网络服务器管理的一个或多个本地资源以及由耦合到网络服务器的一个或多个相应的远程计算机管理的一个或多个远程资源。 当客户端希望访问任何资源时，客户端首先通过提供有效的帐户名称和密码来请求会话或登录到网络服务器。 无论是与会话建立请求还是随后在同一会话期间，客户端请求连接或访问资源。 客户端不需要知道资源的位置或管理资源的计算机（远程或网络服务器）。 网络服务器确定哪个计算机管理所请求的资源。 如果网络服务器管理资源，则网络服务器确定连接是否可用，或者根据请求提供访问，并响应客户端。 然后，如果客户端随后请求与远程计算机管理的资源的连接或访问，或者如果原始请求是由远程计算机管理的资源，则网络服务器发送会话建立请求并连接或访问请求 远程计算机。 客户端不需要为远程计算机发送单独的会话建立请求。 如果远程计算机授予会话，则客户端可以访问由远程计算机管理的资源。