Fujitsu Corporation

Albert V Smith, Jr

Richard Dunsmore

Sanjay Gera

Catherine Yuan

Maitreya Mukhopadhyay

Edward Alton Harbin

Daniel Louis Miller

Joseph Nguyen

Man Wing Fong

Ladan S Pickering

Asmita Borlepwar

Su Wang

Systems and methods for tunneling GCC0 bytes over an OTN transport network are disclosed. The method includes receiving, at a first network element, a first data frame comprising a set of management bytes and a set of data bytes, determining whether the set of management bytes should be tunneled, and, in response to determining that the management bytes should be tunneled, sending, to a second network element, a second data frame comprising the set of management bytes and the set of data bytes.

GCC0 tunneling over an OTN transport network

Routing around intra-network element (intra-NE) disconnectivity is described. The routing is performed on one or more network element (NEs) of a channelized network. The routing involves performing a shortest-path-search (SPS) to determine a shortest non-disconnected path from a single path-ingress edge to a single path-egress edge. The SPS includes classifying a set of endpoints of each NE in the channelized network as an equivalence class of endpoints, classifying a set of paths-so-far between each NE in the channelized network as an equivalence class of paths-so-far, grouping each equivalence class of paths-so-far by the equivalence class of endpoints that includes a terminal endpoint of the path-so-far that is furthest from the single path-ingress edge, and exploring separately each equivalence class of edges that are incident to each NE when determining the shortest non-disconnected path from the single path-ingress edge to the single path-egress edge.

Routing around intra-network element disconnectivity

A method may include monitoring data packets at a data transmission channel. The data packets may be identified as nonconforming or as conforming data packets. Data packets may be identified as nonconforming if a data transmission rate would exceed a data rate threshold if the data packets were allowed to continue along the data transmission channel. Data packets may be identified as conforming if a data transmission rate would not exceed the data rate threshold if the data packets were allowed to continue along the data transmission channel. The nonconforming data packets may be retained as retained data packets. The retained data packets may again be identified as nonconforming data packets or conforming data packets after a retaining time. Data packets identified as conforming data packets may be released.

Transmission rate control

According to a particular embodiment, a method for automatically assigning dynamic IP addresses without user interaction includes maintaining at least one pool of unused IP addresses. An advertisement message is transmitted from a first network element to at least one additional network element in a transport ring. The advertisement message identifies the first network element as providing IP address assignment services. The IP address request message from a second network element in the transport ring is received at the first network element. In response to the IP address request message, an IP address is dynamically assigned from the at least one pool of unused IP addresses. The dynamically assigned IP address is transmitted from the first network element to the second network element.

Method and system for dynamic assignment of network addresses in a communications network

Growing community of inventors

Richardson, TX, United States of America

Albert V Smith, Jr