公开(公告)号：JP2003134154A

公开(公告)日：2003-05-09

申请号：JP2002214155

申请日：2002-07-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： NAGARAJAN RAMESH ,  QURESHI MUHAMMAD A

IPC: H04B10/20 ,  H04J14/02 ,  H04L12/56 ,  H04Q11/00

Abstract: PROBLEM TO BE SOLVED: To provide a method and device for efficiently assigning link resources (port/frequency) in an optical transport network. SOLUTION: An optical transport network comprises a plurality of nodes, or routers, which are coupled together via optical fibers. When a physical link comes up between a node and a neighboring node, a handshake between the node and the neighboring node recognizes the link, and the node and the neighboring node are included in link assignment tables. In addition, the node and the neighboring node negotiate a predefined sequence for assigning link resources to satisfy connection requests.

公开(公告)号：JP2003143183A

公开(公告)日：2003-05-16

申请号：JP2002214156

申请日：2002-07-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： NAGARAJAN RAMESH ,  QURESHI MUHAMMAD A

IPC: H04B10/20 ,  H04L12/56 ,  H04M3/00 ,  H04Q3/52 ,  H04Q11/00 ,  H04Q11/04

Abstract: PROBLEM TO BE SOLVED: To provide a method for establishing a cross-connect at high speed in an optical transport network consisting of a number of nodes or routers coupled together via optical fibers. SOLUTION: A node for connection setup between a source node and a destination node starts the cross-connect with the adjacent node and completes the cross-connect with the adjacent node without waiting for the completion of any downstream cross-connects. The success of the connection operation to the destination node is checked by the node on a reverse pass. This results in completely pipelining the various cross-connect operations at each node. As a result, the connection setup time is of the order of a round-trip delay plus a single cross-connect time (independent of the number of nodes in the connection path).

公开(公告)号：JP2002199007A

公开(公告)日：2002-07-12

申请号：JP2001311455

申请日：2001-10-09

Applicant: LUCENT TECHNOLOGIES INC

Inventor： NAGARAJAN RAMESH ,  QURESHI MUHAMMAD A ,  SUREK STEVEN A

IPC: H04B10/00 ,  H04L12/56 ,  H04Q11/00 ,  H04Q11/04

Abstract: PROBLEM TO BE SOLVED: To provide an optical transport network(OTN) (including a plurality of OTN nodes) that uses an Internet protocol(IP) based control plane (out- of-band signaling on a separate wavelength). SOLUTION: Each OTN node of the IP-based protocol plane performs dual- feeding and dual-selecting of signaling messages on diverse signaling paths. Each IP-based control plane establishes a pair of physically disjoint signaling paths (pre-computed and pre-established physically disjoint primary and secondary message paths in the IP-based control plane) between every set of neighboring OTN nodes.

公开(公告)号：CA2388978C

公开(公告)日：2006-07-25

申请号：CA2388978

申请日：2002-06-05

Applicant: LUCENT TECHNOLOGIES INC

Inventor： NAGARAJAN RAMESH ,  QURESHI MUHAMMAD A

IPC: H04B10/20 ,  H04L12/12 ,  H04L12/24 ,  H04L12/56 ,  H04L29/08 ,  H04M3/00 ,  H04Q3/52 ,  H04Q11/00 ,  H04Q11/04

Abstract: An optical transport network comprises a number of nodes, or routers, whi ch are coupled together via optical fibers. During a connection setup between a source node and a destination node, a node of the optical transport network initiat es a cross- connect with an adjacent node and completes the cross-connect with the adjacent node without waiting for completion of any downstream cross-connects. The success of the connection operation to the destination node is checked by th e node on the reverse pass. This results in completely pipelining the various cross - connect operations at each node. As a result, the connection setup time is of the order of a round-trip delay plus a single cross-connect time (independent of the number of nodes in the connection path).

公开(公告)号：CA2388975C

公开(公告)日：2006-07-25

申请号：CA2388975

申请日：2002-06-05

Applicant: LUCENT TECHNOLOGIES INC

Inventor： NAGARAJAN RAMESH ,  QURESHI MUHAMMAD A

IPC: H04B10/20 ,  H04L12/12 ,  H04J14/02 ,  H04L12/24 ,  H04L12/56 ,  H04L29/08 ,  H04Q11/00

Abstract: An optical transport network comprises a number of nodes, or routers, whi ch are coupled together via optical fibers. When a physical link comes up betwe en a node and a neighboring node, a handshake between the node and the neighborin g node recognizes the link such that the node, and the neighboring node, inclu de it in respective link assignment tables. In addition, the node and the neighboring node negotiate a predefined sequence for assigning link resources from their respective assignment tables for satisfying future connection requests.

公开(公告)号：CA2388978A1

公开(公告)日：2003-01-31

申请号：CA2388978

申请日：2002-06-05

Applicant: LUCENT TECHNOLOGIES INC

Inventor： NAGARAJAN RAMESH ,  QURESHI MUHAMMAD A

IPC: H04B10/20 ,  H04L12/56 ,  H04M3/00 ,  H04Q3/52 ,  H04Q11/00 ,  H04Q11/04 ,  H04L12/12 ,  H04L29/08 ,  H04L12/24

Abstract: An optical transport network comprises a number of nodes, or routers, whi ch are coupled together via optical fibers. During a connection setup between a source node and a destination node, a node of the optical transport network initiat es a cross- connect with an adjacent node and completes the cross-connect with the adjacent node without waiting for completion of any downstream cross-connects. The success of the connection operation to the destination node is checked by th e node on the reverse pass. This results in completely pipelining the various cross - connect operations at each node. As a result, the connection setup time is of the order of a round-trip delay plus a single cross-connect time (independent of the number of nodes in the connection path).

公开(公告)号：DE60204086T2

公开(公告)日：2006-02-02

申请号：DE60204086

申请日：2002-02-12

Applicant: LUCENT TECHNOLOGIES INC

Inventor： NAGARAJAN RAMESH ,  QURESHI MUHAMMAD A

IPC: H04B10/20 ,  H04J14/02 ,  H04L12/56 ,  H04Q11/00

Abstract: An optical transport network comprises a number of nodes, or routers, which are coupled together via optical fibers. When a physical link comes up between a node and a neighboring node, a handshake between the node and the neighboring node recognizes the link such that the node, and the neighboring node, include it in respective link assignment tables. In addition, the node and the neighboring node negotiate a predefined sequence for assigning link resources from their respective assignment tables for satisfying future connection requests.

公开(公告)号：CA2388975A1

公开(公告)日：2003-01-31

申请号：CA2388975

申请日：2002-06-05

Applicant: LUCENT TECHNOLOGIES INC

Inventor： QURESHI MUHAMMAD A ,  NAGARAJAN RAMESH

IPC: H04B10/20 ,  H04J14/02 ,  H04L12/56 ,  H04Q11/00 ,  H04L12/12 ,  H04L29/08 ,  H04L12/24

Abstract: An optical transport network comprises a number of nodes, or routers, whi ch are coupled together via optical fibers. When a physical link comes up betwe en a node and a neighboring node, a handshake between the node and the neighborin g node recognizes the link such that the node, and the neighboring node, inclu de it in respective link assignment tables. In addition, the node and the neighboring node negotiate a predefined sequence for assigning link resources from their respective assignment tables for satisfying future connection requests.

公开(公告)号：DE60206338T2

公开(公告)日：2006-06-22

申请号：DE60206338

申请日：2002-02-12

Applicant: LUCENT TECHNOLOGIES INC

Inventor： NAGARAJAN RAMESH ,  QURESHI MUHAMMAD A

IPC: H04B10/20 ,  H04Q11/04 ,  H04L12/56 ,  H04M3/00 ,  H04Q3/52 ,  H04Q11/00

Abstract: An optical transport network comprises a number of nodes, or routers, which are coupled together via optical fibers. During a connection setup between a source node and a destination node, a node of the optical transport network initiates a cross-connect with an adjacent node and completes the cross-connect with the adjacent node without waiting for completion of any downstream cross-connects. The success of the connection operation to the destination node is checked by the node on the reverse pass. This results in completely pipelining the various cross-connect operations at each node. As a result, the connection setup time is of the order of a round-trip delay plus a single cross-connect time (independent of the number of nodes in the connection path).

公开(公告)号：DE60206338D1

公开(公告)日：2006-02-09

申请号：DE60206338

申请日：2002-02-12

Applicant: LUCENT TECHNOLOGIES INC

Inventor： NAGARAJAN RAMESH ,  QURESHI MUHAMMAD A

IPC: H04B10/20 ,  H04L12/56 ,  H04M3/00 ,  H04Q3/52 ,  H04Q11/00 ,  H04Q11/04

Abstract: An optical transport network comprises a number of nodes, or routers, which are coupled together via optical fibers. During a connection setup between a source node and a destination node, a node of the optical transport network initiates a cross-connect with an adjacent node and completes the cross-connect with the adjacent node without waiting for completion of any downstream cross-connects. The success of the connection operation to the destination node is checked by the node on the reverse pass. This results in completely pipelining the various cross-connect operations at each node. As a result, the connection setup time is of the order of a round-trip delay plus a single cross-connect time (independent of the number of nodes in the connection path).