Network-system, management-system, method and computer program product
    2.
    发明授权
    Network-system, management-system, method and computer program product 有权
    网络系统,管理系统,方法和计算机程序产品

    公开(公告)号:US07289531B2

    公开(公告)日:2007-10-30

    申请号:US10179187

    申请日:2002-06-26

    IPC分类号: H04J3/16

    CPC分类号: H04L41/00

    摘要: Provided is a management-system for use in a network environment including a first and second IP networks and a transport network which connects the first and second IP networks. The management system includes: a converter for optimizing a path in an IP-domain via a first algorithm and for converting IP-traffic-signals into transport-traffic-signals; and an optimiser which optimizes a topology that overlays the transport network by optimizing channels in the transport-network according to at least one second algorithm. The first algorithm is an IP multi protocol label switching routing optimization algorithm. The second algorithm is an algorithm based on a plurality of constraints and objectives such as a flow conservation constraint, logical link capacity constraint, optical router port constraint, wavelength cost objective, optical router port occupation objective, advertised link number objective, spare capacity objective, wavelength re-use benefit objective and optical service level agreement constraint.

    摘要翻译: 提供了一种用于网络环境中的管理系统,包括第一和第二IP网络以及连接第一和第二IP网络的传输网络。 管理系统包括:转换器,用于经由第一算法优化IP域中的路径并将IP业务信号转换成传输业务信号; 以及优化器,其通过根据至少一个第二算法优化传输网络中的信道来优化覆盖传输网络的拓扑。 第一种算法是IP多协议标签交换路由优化算法。 第二种算法是基于流量守恒约束,逻辑链路容量约束,光路由器端口约束,波长成本目标,光路由器端口占用目标,广告链路号目标,备用容量目标等多个约束和目标的算法, 波长重用利益目标和光服务水平协议约束。

    Algorithm to bypass L4 processing in an internet protocol forwarding processor
    4.
    发明授权
    Algorithm to bypass L4 processing in an internet protocol forwarding processor 失效
    在互联网协议转发处理器中绕过L4处理的算法

    公开(公告)号:US06654372B1

    公开(公告)日:2003-11-25

    申请号:US09543144

    申请日:2000-04-05

    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。