Process and apparatus for the operation of virtual private networks on a common data packet communication network
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 -
Mar 12, 1998
filing date -
Mar 12, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Economical and dependable networking of spatially separated branches of an organization is made possible for a plurality of individual subscribers with spatially separated branches by means of an arrangement and process for the operation of layer-3 virtual private networks (VPN A, VPN B) on a common data packet.communication network (e.g. OSI L3 data packet communication network 1). A logical separation of the layer-3 VPNs (VPNA, VPNB) is accomplished by allocating disjoint partial address spaces of a given homogeneous total address space to these L3 VPNs. A virtual private network identification number VPN ID is assigned to each L3 VPN and used to identify the disjoint partial address space by forming a part of the address. The VPN ID characterizing the L3 VPN starts at a fixed bit position in the individual subscriber address of each individual subscriber of the L3 VPN and may have a variable or a fixed length. Secure separation of the L3 VPNs is implemented by filtering of routing information and/or data packets based on the VPN ID.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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