公开(公告)号：US06657974B1

公开(公告)日：2003-12-02

申请号：US09549946

申请日：2000-04-14

申请人： Edward Glen Britton ,  Michael G. Fitzpatrick ,  Jeffrey Douglas Haggar ,  Maurice Isrel, Jr. ,  Thomas Donald Moore ,  Andrew Henry Richter ,  Barton Clark Vashaw

发明人： Edward Glen Britton ,  Michael G. Fitzpatrick ,  Jeffrey Douglas Haggar ,  Maurice Isrel, Jr. ,  Thomas Donald Moore ,  Andrew Henry Richter ,  Barton Clark Vashaw

IPC分类号： H04L1228

CPC分类号： H04L29/12018 ,  H04L29/12009 ,  H04L61/10 ,  H04L69/40

摘要： The invention ensures that a single and consistent reply is made to ARP requests in a system of connected IP networks in which each host can contain combinations of host adapters, offload adapters and virtual IP addresses.

摘要翻译： 本发明确保在连接的IP网络的系统中对ARP请求进行单一且一致的答复，其中每个主机可以包含主机适配器，卸载适配器和虚拟IP地址的组合。

公开(公告)号：US06697326B1

公开(公告)日：2004-02-24

申请号：US09549945

申请日：2000-04-14

申请人： Edward Glen Britton ,  Michael G. Fitzpatrick ,  Jeffrey Douglas Haggar ,  Maurice Isrel, Jr. ,  Barton Clark Vashaw

发明人： Edward Glen Britton ,  Michael G. Fitzpatrick ,  Jeffrey Douglas Haggar ,  Maurice Isrel, Jr. ,  Barton Clark Vashaw

IPC分类号： H04L1226

CPC分类号： H04L29/12018 ,  H04L29/12009 ,  H04L61/10

摘要： The invention ensures that a single and consistent reply is made to ARP request in a system of connected IP networks. In each host, the first adapter A to become active is designated as being in an arbitrary first physical network (PNET1). For each subsequent adapter B to become active on a host, the host sends a packet over one of the adapters (A) of each network already known to the host with a hop count of one. If the packet is received over adapter B, it is known that adapters A and B are in the same physical network. If this occurs, adapter B is marked as being in the same network PNET1 as adapter A. If the packet is not received over adapter B then B is in a different physical network as A. In this event, adapter B is marked as being in a new network PNET2. When adapter A becomes inactive, if there are other active adapters in the physical network to which A belongs, then one of the remaining adapters B in that physical network is designated to have the responsibility for replying to ARP requests for A. A gratuitous ARP advertisement is transmitted into the network mapping IP-A with MAC-B. When adapter A again becomes active, adapter A will re-assume ownership of ARP replies for IP address A.

摘要翻译： 本发明确保在连接的IP网络的系统中对ARP请求进行单一一致的回复。 在每个主机中，要变为活动的第一适配器A被指定为在任意的第一物理网络（PNET1）中。 对于每个随后的适配器B在主机上变为活动状态，主机通过跳数为1的主机已知的每个网络的一个适配器（A）发送分组。 如果通过适配器B接收到分组，则知道适配器A和B处于相同的物理网络中。 如果发生这种情况，则适配器B被标记为与适配器A在同一个网络PNET1中。如果未通过适配器B接收到分组，则B与A处于不同的物理网络。在这种情况下，适配器B被标记为处于 一个新的网络PNET2。 当适配器A变为非活动状态时，如果物理网络中存在其他活动适配器，则该物理网络中剩余的适配器B之一被指定为对A的ARP请求进行回复的责任。无偿ARP广播 被传送到MAC-B映射IP-A的网络中。 当适配器A再次变为活动时，适配器A将重新承担IP地址A的ARP应答的所有权。

公开(公告)号：US06675206B1

公开(公告)日：2004-01-06

申请号：US09549291

申请日：2000-04-14

申请人： Edward Glen Britton ,  Michael G. Fitzpatrick ,  Jeffrey Douglas Haggar ,  Maurice Isrel, Jr. ,  Andrew Henry Richter ,  Barton Clark Vashaw

发明人： Edward Glen Britton ,  Michael G. Fitzpatrick ,  Jeffrey Douglas Haggar ,  Maurice Isrel, Jr. ,  Andrew Henry Richter ,  Barton Clark Vashaw

IPC分类号： G06F15177

CPC分类号： H04L29/12018 ,  H04L29/12009 ,  H04L61/10

摘要： The invention ensures that a single and consistent reply is made to an ARP request in a system of connected IP networks. When an adapter becomes active, the relative network on which it resides is determined by transmitting control packets over it and all other adapters known to the host and observing if and where responses are returned to the adapters. One adapter on a network is designated as active. If the same network contains other adapters, they are marked as standby adapters for the purpose of responding to ARP messages. Special processing is provided for offload adapters that perform there own ARP processing.

摘要翻译： 本发明确保在连接的IP网络的系统中对ARP请求进行单一一致的回复。 当适配器变为活动状态时，通过在其上传输控制数据包以及主机已知的所有其他适配器并观察响应是否返回到适配器，确定其驻留的相对网络。 网络上的一个适配器被指定为活动的。 如果同一个网络包含其他适配器，则它们被标记为备用适配器，以响应ARP消息。 为执行自己的ARP处理的卸载适配器提供特殊处理。

公开(公告)号：US06678725B1

公开(公告)日：2004-01-13

申请号：US09548976

申请日：2000-04-14

申请人： Edward Glen Britton ,  Jeffrey Douglas Haggar ,  Maurice Isrel, Jr. ,  Barton Clark Vashaw

发明人： Edward Glen Britton ,  Jeffrey Douglas Haggar ,  Maurice Isrel, Jr. ,  Barton Clark Vashaw

IPC分类号： G06F15177

CPC分类号： H04L61/6077 ,  H04L61/103 ,  H04L69/40

摘要： The invention ensures that a single and consistent reply is made to an ARP request in a system of connected IP networks. When an adapter becomes active, the relative network on which it resides is determined by transmitting control packets over it and all other adapters known to the host and observing if and where responses are returned to the adapters. One adapter on a network is designated as active. If the same network contains other adapters, they are marked as standby adapters for the purpose of responding to ARP messages. Special processing is provided for offload adapters that perform there own ARP processing.

摘要翻译： 本发明确保在连接的IP网络的系统中对ARP请求进行单一一致的回复。 当适配器变为活动状态时，通过在其上传输控制数据包以及主机已知的所有其他适配器并观察响应是否返回到适配器，确定其驻留的相对网络。 网络上的一个适配器被指定为活动的。 如果同一个网络包含其他适配器，则它们被标记为备用适配器，以响应ARP消息。 为执行自己的ARP处理的卸载适配器提供特殊处理。

公开(公告)号：US06775278B1

公开(公告)日：2004-08-10

申请号：US09549947

申请日：2000-04-14

申请人： Edward Glen Britton ,  Jeffrey Douglas Haggar ,  Thomas Donald Moore ,  Andrew Henry Richter ,  Barton Clark Vashaw

发明人： Edward Glen Britton ,  Jeffrey Douglas Haggar ,  Thomas Donald Moore ,  Andrew Henry Richter ,  Barton Clark Vashaw

IPC分类号： H04L1228

CPC分类号： H04L29/12018 ,  H04L29/12009 ,  H04L61/10 ,  H04L69/40

摘要： The invention ensures that a single and consistent reply is made to ARP request in a system of connected IP networks. When an adapter (A) becomes active, the owning host sends an ARP advertisement into the network over the adapter. If the advertisement is also received at the sending host over a different adapter B, then the host knows that adapter B is on in the same physical network as adapter A and B can be designated as a backup adapter for A and A can be designated as backup adapter for B. If adapter A fails or becomes inactive, the host resets the backup adapter field for any adapter it owns for which A is marked as the backup adapter. If a backup adapter B has been designated for A, the host also sends an ARP advertisement associating MAC-B with IP-A. This allows network connections originally served via adapter A to continue non-disruptively over adapter B and it also provides access to the host for subsequent new connections. When adapter A becomes active again, the host sends a gratuitous ARP advertisement that maps IP-A to MAC-A. This allows adapter A to re-assume responsibility for responding to ARP requests for IP-A.

摘要翻译： 本发明确保在连接的IP网络的系统中对ARP请求进行单一一致的回复。 当适配器（A）变为活动状态时，拥有主机通过适配器向网络发送ARP广告。 如果通过不同的适配器B在发送主机处接收到广告，则主机知道适配器B在与适配器A相同的物理网络中处于开启状态，并且B可以被指定为用于A的备用适配器，并且A可以被指定为 备用适配器B.如果适配器A出现故障或变为不活动状态，则主机会为其所有A适配器的适配器重新设置备份适配器字段。 如果A指定备用适配器B，主机还会发送一个关联MAC-B与IP-A的ARP通告。 这允许最初通过适配器A服务的网络连接在适配器B上不间断地继续，并且还提供对主机的访问以用于后续的新连接。 当适配器A再次变为活动状态时，主机发送一个将IP-A映射到MAC-A的免费ARP广播。 这允许适配器A重新承担响应IP-A的ARP请求的责任。

公开(公告)号：US5983281A

公开(公告)日：1999-11-09

申请号：US847416

申请日：1997-04-24

申请人： David Mark Ogle ,  Carolyn Haibt Norton ,  Karen Marie Tracey ,  Barton Clark Vashaw

发明人： David Mark Ogle ,  Carolyn Haibt Norton ,  Karen Marie Tracey ,  Barton Clark Vashaw

IPC分类号： H04L29/06 ,  H04L29/08 ,  H04L12/46

CPC分类号： H04L67/1036 ,  H04L67/1002 ,  H04L67/1014

摘要： Methods, systems and computer program products are provided which dynamically balance the load between gateways which provide access between a first computer network and a second computer network. This load balancing includes receiving at a gateway a communication to be transmitted to a second computer network from a source device on the first computer network. The gateway determines, preferably based on an address contained in the communication, through which of the gateways the communication is to be transmitted and then either transmits the communication to the second network or over the first network to the determined gateway. A redirect message may then be sent to the source device to direct subsequent messages to the proper gateway. The gateway determination may be made by dividing a resource identifier into subgroups, summing the subgroups and then dividing the sum by the number of parallel gateways. The remainder may then be used as a gateway identifier.

摘要翻译： 提供了方法，系统和计算机程序产品，其动态地平衡在第一计算机网络和第二计算机网络之间提供访问的网关之间的负载。 该负载平衡包括在网关处从第一计算机网络上的源设备接收要发送到第二计算机网络的通信。 网关优选地基于通信中包含的地址来确定要通过哪个网关发送通信，然后将通信发送到第二网络或通过第一网络发送到所确定的网关。 然后可以将重定向消息发送到源设备以将后续消息引导到适当的网关。 可以通过将资源标识符划分为子组，对子组进行求和，然后将和除以并行网关的数量来进行网关确定。 其余的可以用作网关标识符。

公开(公告)号：US06970920B2

公开(公告)日：2005-11-29

申请号：US09832543

申请日：2001-04-11

申请人： Daniel Earl Poirier ,  Barton Clark Vashaw

发明人： Daniel Earl Poirier ,  Barton Clark Vashaw

IPC分类号： H04L29/06 ,  H04L29/08 ,  H04L29/12 ,  G06F15/177

CPC分类号： H04L29/1232 ,  H04L29/06 ,  H04L29/12018 ,  H04L61/10 ,  H04L61/2092 ,  H04L67/14 ,  H04L69/329

摘要： Methods, system and computer program products for establishing a connection to a network device which does not have an assigned network address. A connection is established from a configuring device to the network device utilizing an unassigned network address for the network to which the network device is attached irrespective of whether the network device is attached to a network local to or remote from the configuring device. The network device may be configured utilizing the established connection. A network address may also be assigned to the device irrespective of whether the network device is attached to a network local to or remote from the configuring device.

摘要翻译： 用于建立与没有分配的网络地址的网络设备的连接的方法，系统和计算机程序产品。 利用网络设备所连接的网络的未分配网络地址，从配置设备到网络设备建立连接，而不管网络设备是否连接到本地或远离配置设备的网络。 可以使用建立的连接来配置网络设备。 也可以将网络地址分配给设备，而不管网络设备是否连接到本地设置或远离配置设备的网络。

公开(公告)号：US6052736A

公开(公告)日：2000-04-18

申请号：US828686

申请日：1997-03-31

申请人： David Mark Ogle ,  Karen Marie Tracey ,  Barton Clark Vashaw

发明人： David Mark Ogle ,  Karen Marie Tracey ,  Barton Clark Vashaw

IPC分类号： H04L12/56 ,  G06F15/16 ,  G06F15/173

CPC分类号： H04L45/02

摘要： Methods, systems and computer program products are provided which route messages from a source device on a first network to a destination device on a second network through a first routing device where the first routing device transmits a message to a master routing device. The first routing device receives a routing address from the master routing device responsive to the transmitted message. The routing address specifies an address of a device to which subsequent communications to the destination device are routed. The first routing device stores the received routing address in a list of addresses so as to associate the stored routing address with an address of the destination device of the message. The first routing device may also determine a routing address for a second message from the stored list of routing addresses based upon a destination address of the second message and transmit the second message to the determined routing address. The routing table of the routing device may be updated without requiring modification of TCP/IP messages.

摘要翻译： 提供了方法，系统和计算机程序产品，其通过第一路由设备将消息从第一网络上的源设备路由到第二网络上的目的地设备，其中第一路由设备向主路由设备发送消息。 第一路由设备响应于所发送的消息从主路由设备接收路由地址。 路由地址指定到目的地设备的后续通信路由到的设备的地址。 第一路由设备将接收到的路由地址存储在地址列表中，以将存储的路由地址与消息的目的地设备的地址相关联。 第一路由设备还可以基于第二消息的目的地地址从存储的路由地址列表中确定第二消息的路由地址，并将第二消息发送到确定的路由地址。 可以更新路由设备的路由表，而不需要修改TCP / IP消息。