Routing support for point-to-multipoint connections
US6529498B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1998 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Oct 13, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A distrubution tree for point-to-multipoint connections within a computer network may be dynamically created according to the number of connections shared by individual point-to-point connections which comprise the point-to-multipoint connection. Each distribution tree represents a collection of DTLs, overlapped from a root node of the tree to leaf nodes thereof. The distribution tree may be organized as a distribution table having two dimensions with row indices thereof comprising PNNI node indices of succeeding nodes along a connection DTL. Individual entries in a first column of the distribution table may indicate PNNI node indices of proceeding nodes along the connection DTL. Individual entries in a second column of the distribution table may indicate the number of point-to-point connections for the point-to-multipoint connection that use a link connecting a pair of proceeding and succeeding nodes. A path (or sub-path) may be selected from the distribution table in response to a request for a point-to-multipoint connection within the ATM network. Further, the distribution table may be updated in response to a call being added or dropped within the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.