Method and apparatus for routing server redundancy in a network having carrier scale internetworking
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 20, 2002
Grant Date -
N/A
app pub date -
Aug 5, 1999
filing date -
Aug 7, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus provides greater flexibility, scalability and manageability when multiple services are being supported by a Carrier Scale Internetworking (CSI) system by including processing that detects when connectivity to an Route Server Instance (RSI) host that is supporting an active RSI has failed and provides a replacement RSI host from a redundancy set. In additional, forwarders (i.e., core forwarder, edge forwarder, and/or default forwarder), upon detecting a change in the RSI host, connect to the new RSI host. RSI hosts in the redundancy set use a redundancy chain protocol to select the new RSI host to function as the active RSI. Note that an RSI host may be a virtual entity on a routing service control point (RSCP) that indicates that this RSI Host has the capability to become an active RSI, wherein an active RSI is an RSI Host that is running the RSI.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully