Home | Links | Contact Us | More About Intellectual Property | Bookmark
Search patents:
Home Multiplexer-related Virtual-private-data-network-session-count-limitation

 Protective relay system and sampling synchronizing method therefor
An object of the invention is to minimize the delay in the transmission of the electrical quantity ...


 Locating system and method
Among the several objects of the present invention is the provision of a relatively simple system ...


 Augmented key and cylinder lock
The present device is in one environment incorporated in a lock 6 in which a driver bar 7 rotates ...


 Multistage network with distributed pipelined control
It is therefore an object of the present invention to provide in a multistage bufferless network a ...


 Framer circuit for use in a DTDM network
The digital network transport system, referred to herein as Dynamic Time Division Multiplexing (DTDM...


 Interface for ISDN channels
It is an object of the present invention to overcome the problem described above. It is another ...


 Method of and system for synchronizing data reception and retransmission aboard communication satellite
We claim: 1. A method of timing the reading of data bits in a stream of digital signals ...


 Clock signal extracting circuit
It is accordingly an object of the present invention to provide a clock signal extracting circuit ...


 Adaptive jitter canceller having sinusoidal accentuator and jitter prediction filter
It is therefore an object of the invention to provide an adaptive jitter canceller in which the ...


 Method and apparatus for reducing power dissipation in multi-carrier amplifiers
OF THE DRAWINGS The features and advantages of the present invention outlined above are described ...


 Virtual private data network session count limitation

Details
Inventors: Sitaraman, Aravind; Alesso, Craig Michael; Yager, Charles Troper;
Assignee: Cisco Technology, Inc. (San Jose, CA)
Primary Examiner: Etienne; Ario
Assistant Examiner: Salad; Abdullah E.
Attorney, Agent or Firm: Thelen Reid & Priest LLP, Hanish; Marc S.

A data communications network with a plurality of PoPs maintains a local database associated with each PoP and a central database somewhere on the data communications network. The local database contains a group identification such as a domain identification corresponding to a group of users, a maximum number of VPN sessions to provide the group of users at the PoP and a dynamic VPN session count corresponding to active VPN sessions currently provided to the group of users at the PoP. The central database contains a maximum number of VPN sessions to provide the group of users over the entire data communications network and a dynamic network-wide VPN session count corresponding to active VPN sessions currently provided to the group of users on the entire data communications network. Actions are taken when the group attempts to exceed either the local maximum number of sessions or the network-wide maximum number of sessions by more than a predetermined number. The actions may include assessing extra charges, denying access, and sending warning messages to appropriate recipients.

DETAILED DESCRIPTION A data communications network with a plurality of PoPs maintains a local database associated with each PoP and a central database somewhere on the data communications network.
The local database contains a group identification such as a domain identification corresponding to a group of users, a maximum number of VPN sessions to provide the group of users at the PoP and a dynamic VPN session count corresponding to active VPN sessions currently provided to the group of users at the PoP.
The central database contains a maximum number of VPN sessions to provide the group of users over the entire data communications network and a dynamic network-wide VPN session count corresponding to active VPN sessions currently provided to the group of users on the entire data communications network.
Actions are taken when the group attempts to exceed either the local maximum number of sessions or the network-wide maximum number of sessions by more than a predetermined number.
The actions may include assessing extra charges, denying access, and sending warning messages to appropriate recipients.


Related patents
  Direct microwave demodulator of PSK signals with automatic gain control
The problem resolved by the present invention consists in the provision of a direct demodulation microwave reception, chain which, in association with other functions, ...
  Data delay circuit and clock extraction circuit using the same
It is a general object of the present invention to provide a novel and useful data delay circuit in which the aforementioned disadvantages are eliminated. A more ...
  Stabilized delay line oscillator
It is therefore an object of the present invention to provide timing circuitry which will adapt to changes in frequency. Another object of the invention is to provide a ...
  Micro time and phase stepper
OF THE INVENTION The present invention utilizes the principle of multiplication of trigonometric functions; namely, cosine waves. FIG. 1 shows a simplified block ...
  Adaptive differential pulse code modulation
FIG. 1 depicts an ADPCM system known to the prior art as exemplified by the cited Cummiskey et al. paper. In the known system an analog signal, such as human speech, is ...
  Position detection encoder having plural light receiving and light emitting elements
Accordingly, the present invention has been developed with a view to substantially eliminating the above discussed drawbacks inherent in the prior art, and has for its ...
  Low probability of interception relative position determination system
The relative radio navigation system of the present invention provides add-on LPI position and range determination. It determines range and bearing to/from a mobile ...
  Data communication apparatus
Accordingly, a primary object of the present invention is to provide an improved data communication apparatus having an error retransmission function, thereby overcoming ...
  Apparatus for converting a signal of a first sample rate into a signal of a second sample rate
It is an object of the present invention to provide equipment by which signals of different sample rates can be converted so as to provide a common sample rate at which ...
  Combustible gas sensor
Accordingly, it is an object of the present invention to provide a combustible gas sensor by making more uniform the thermal and compositional environment surrounding ...

0.034

Archive: All patents - Links

Copyright (c)2006 Eipa-patents.org - All rights reserved