公开(公告)号：EP0812083B1

公开(公告)日：2007-04-18

申请号：EP96925120.6

申请日：1996-07-29

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： HASEGAWA, Haruhisa ,  YAMANAKA, Naoaki ,  SHIOMOTO, Kouhei

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L12/5601 ,  H04L12/5602 ,  H04L41/5009 ,  H04L41/5032 ,  H04L43/026 ,  H04L43/0829 ,  H04L43/0894 ,  H04L43/16 ,  H04L2012/5619 ,  H04L2012/5635 ,  H04L2012/5636 ,  H04L2012/5681 ,  H04Q11/0478

摘要： In a best effort type service of an ATM communication network for circulating an RM cell, a subscriber's switchboard holds the latest route information, and the RM cell is used for short distance communication between the communication terminal and the subscriber's switchboard. For a plurality of connections accommodated in the switchboard and using a transmission line or a route in common, information on the allowable transmission rate, the actual transmission rate, the full bandwidth and full input bandwidth of the transmission line or the route, and the number of connections using in common the transmission line are collected and held. A transmission rate acceptable for the caller's terminal is calculated for each connection on the basis of the information. An increase of a memory capacity is restricted by providing a common buffer and managing it by a pointer value. A list of cells which have arrived simultaneously is prepared, and is managed by the pointer value. The cells are sent out at different timings so as not to be discarded. Even when congestion is solved, the restriction is not quickly lifted but control is effected in consideration of the increment of the cell flow rate immediately after the lift. Convolution calculation is made only once for determining the overall mean cell loss ratio and consequently the amount of calculation is reduced.

公开(公告)号：EP1341393A3

公开(公告)日：2006-06-07

申请号：EP03100464.1

申请日：2003-02-26

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： OKI, Eiji ,  IMAJUKU, Wataru ,  SHIOMOTO, Kohei ,  YAMANAKA, Naoaki ,  SHIMAZAKI, Daisaku ,  NAGATSU, Naohide ,  TAKIKAWA, Yoshihiro

IPC分类号： H04Q11/00

CPC分类号： H04Q11/0062 ,  H04Q11/0066 ,  H04Q11/0071 ,  H04Q2011/0086

摘要： A multi-layer photonic network and nodes used therein are provided. The multi-layer photonic network comprises a packet network which performs switching and transfer in packet units, and a photonic network comprising optical transmission lines and photonic switches, and which accommodates the packet network. The multi-layer photonic network also has a two layer structure of optical wavelength links (O-LSPs) and packet links (E-LSPs). The O-LSPs are constituted by the optical transmission lines and comprise optical wavelength switching capability (LSC) which is capable of switching in optical wavelength units and packet switching capability (PSC) which is capable of switching in packet units at both their ends. The E-LSPs include the O-LSPs and PSCs at both their ends. Each node includes a section for automatically establishing an O-LSP according to an establishment request for an E-LSP while taking account of path information including path cost, resource consumption, and traffic quantity.

公开(公告)号：EP1341393A2

公开(公告)日：2003-09-03

申请号：EP03100464.1

申请日：2003-02-26

申请人： Nippon Telegraph and Telephone Corporation

发明人： OKI, Eiji ,  IMAJUKU, Wataru ,  SHIOMOTO, Kohei ,  YAMANAKA, Naoaki ,  SHIMAZAKI, Daisaku ,  NAGATSU, Naohide ,  TAKIKAWA, Yoshihiro

IPC分类号： H04Q11/00

CPC分类号： H04Q11/0062 ,  H04Q11/0066 ,  H04Q11/0071 ,  H04Q2011/0086

摘要： A multi-layer photonic network and nodes used therein are provided. The multi-layer photonic network comprises a packet network which performs switching and transfer in packet units, and a photonic network comprising optical transmission lines and photonic switches, and which accommodates the packet network. The multi-layer photonic network also has a two layer structure of optical wavelength links (O-LSPs) and packet links (E-LSPs). The O-LSPs are constituted by the optical transmission lines and comprise optical wavelength switching capability (LSC) which is capable of switching in optical wavelength units and packet switching capability (PSC) which is capable of switching in packet units at both their ends. The E-LSPs include the O-LSPs and PSCs at both their ends. Each node includes a section for automatically establishing an O-LSP according to an establishment request for an E-LSP while taking account of path information including path cost, resource consumption, and traffic quantity.

摘要翻译： 提供了多层光子网络和其中使用的节点。 多层光网络包括以分组单元执行切换和传送的分组网络，以及包括光传输线路和光子交换机并且容纳分组网络的光网络。 多层光网络还具有光波长链路（O-LSP）和分组链路（E-LSP）两层结构。 O-LSP由光传输线构成，并且包括能够切换光波长单元的光波长切换能力（LSC）和能够在两端分组单元切换的分组交换能力（PSC）。 E-LSP包括两端的O-LSP和PSC。 每个节点包括根据E-LSP的建立请求自动建立O-LSP的部分，同时考虑路径信息，包括路径开销，资源消耗和流量。

公开(公告)号：EP1341393B1

公开(公告)日：2012-11-07

申请号：EP03100464.1

申请日：2003-02-26

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： OKI, Eiji ,  IMAJUKU, Wataru ,  SHIOMOTO, Kohei ,  YAMANAKA, Naoaki ,  SHIMAZAKI, Daisaku ,  NAGATSU, Naohide ,  TAKIKAWA, Yoshihiro

IPC分类号： H04Q11/00

CPC分类号： H04Q11/0062 ,  H04Q11/0066 ,  H04Q11/0071 ,  H04Q2011/0086

公开(公告)号：EP0812083A1

公开(公告)日：1997-12-10

申请号：EP96925120.6

申请日：1996-07-29

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： HASEGAWA, Haruhisa ,  YAMANAKA, Naoaki ,  SHIOMOTO, Kouhei

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L12/5601 ,  H04L12/5602 ,  H04L41/5009 ,  H04L41/5032 ,  H04L43/026 ,  H04L43/0829 ,  H04L43/0894 ,  H04L43/16 ,  H04L2012/5619 ,  H04L2012/5635 ,  H04L2012/5636 ,  H04L2012/5681 ,  H04Q11/0478

摘要： In a best effort type service of an ATM communication network for circulating an RM cell, a subscriber's switchboard holds the latest route information, and the RM cell is used for short distance communication bewtween the communication terminal and subscriber's switchboard. For a plurality of connections accommodated in the switchboard and using a transmission line or a route in common, information on the allowable transmission rate, the actual transmission rate, the full bandwidth and full input bandwidth of the transmission line or the route, and the number of connections using in common the transmission line are collected and held. A transmission rate acceptable for the caller's terminal is calculated for each connection on the basis of the information. An increase of a memory capacity is restricted by providing a common buffer and managing it by a pointer value. A list of cells which have arrived simultaneously is prepared, and is managed by the pointer value. The cells are sent out at different timings so as not to be discarded. Even when congestion is solved, the restriction is not quickly lifted but control is effected in consideration of the increment of the cell flow rate immediately after the lift. Convolution calculation is made only once for determining the overall mean cell loss ratio and consequently the amount of calculation is reduced.

摘要翻译： 在用于循环RM小区的ATM通信网络的尽力而为型服务中，用户的交换机保存最新的路由信息​​，并且RM小区用于通信终端和用户交换机之间的短距离通信。 对于容纳在交换机中并且使用传输线路或共同路线的多个连接，关于传输线路或路由的可允许传输速率，实际传输速率，全带宽和完整输入带宽的信息，以及数字 的连接使用共同的传输线被收集和保持。 基于该信息为每个连接计算呼叫者终端可接受的传输速率。 通过提供公共缓冲区并通过指针值对其进行管理来限制存储器容量的增加。 准备同时到达的单元格列表，并由指针值进行管理。 在不同的时间点发送信元以便不被丢弃。 即使当拥塞得到解决时，也不能快速地解除限制，而是考虑到电梯之后的电池流量的增加而进行控制。 卷积计算仅对确定总体平均细胞损失率进行一次，因此计算量减少。

公开(公告)号：EP0785652A1

公开(公告)日：1997-07-23

申请号：EP96921140.8

申请日：1996-07-02

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： HASEGAWA, Haruhisa ,  YAMANAKA, Naoaki ,  SHIOMOTO, Kouhei

IPC分类号： H04L12/56

CPC分类号： H04L12/5602 ,  H04L2012/5619 ,  H04L2012/5634 ,  H04L2012/5635 ,  H04L2012/5636 ,  H04Q11/0478

摘要： When bandwidth in an ATM network is controlled so as to increase in accordance with a user request, there is a considerable delay from the occurrence of the request until the bandwidth is actually changed, and there is therefore a need to control the traffic flowing in ATM network transmission paths faster and more flexibly. There is also a need to decrease the probability of overbooking occurring when deciding whether or not to accept a bandwidth change request. Route information that includes information relating to residual bandwidth is therefore collected in advance by subscriber switches that serve terminals. In response to a request from a user, a subscriber switch alone replies rapidly. During this process, account is taken of the fact that there are a plurality of bandwidth change requests within the same residual bandwidth measurement period, and a portion of the measured residual bandwidth is held for other bandwidth change requests. This enables the aforesaid delay to be shortened. In addition, it is sufficient if the functions corresponding to the plurality of protocols employed by users are provided at and only at the subscriber switches which directly serve those users, whereby the hardware configuration of the transit switches etc. can be simplified. In addition, bandwidth can be allocated with high precision.

摘要翻译： 当ATM网络中的带宽被控制以根据用户请求增加时，从请求的发生到实际改变带宽之间存在相当大的延迟，因此需要控制在ATM中流动的业务 网络传输路径更快更灵活。 当决定是否接受带宽改变请求时，还需要降低超额预定发生的概率。 因此，包含与剩余带宽有关的信息的路由信息​​由用户终端的用户交换机事先收集。 响应于来自用户的请求，用户交换机单独地应答快速。 在此过程中，考虑到在相同的剩余带宽测量周期内存在多个带​​宽变化请求，并且为其他带宽改变请求保留测量的剩余带宽的一部分。 这使得能够缩短上述延迟。 此外，只要在用户交换机上只提供与用户所采用的多种协议对应的功能，就可以简化直接服务于用户的用户交换机，从而可以简化转接交换机的硬件配置。 此外，可以高精度地分配带宽。