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Method and device for saving WAN (wide area network) bandwidth in IP (internet protocol) monitoring system

A monitoring system and wide area network technology, applied in the field of video monitoring, can solve the problem of video streams bypassing the wide area network, etc.

Active Publication Date: 2012-07-04
ZHEJIANG UNIVIEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the monitoring video stream may detour through the wide area network when the IP monitoring system adopts the tunnel mode to traverse the isolation device

Method used

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  • Method and device for saving WAN (wide area network) bandwidth in IP (internet protocol) monitoring system
  • Method and device for saving WAN (wide area network) bandwidth in IP (internet protocol) monitoring system
  • Method and device for saving WAN (wide area network) bandwidth in IP (internet protocol) monitoring system

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] figure 1 A single domain IP monitoring system is shown. Single-domain IP monitoring system means that there is only one monitoring management domain in the system. Such a system may have many branch networks, but only one branch undertakes management tasks. Typically, there is only one video management server (VM) to control the monitoring system. , the branch in charge of management is usually called the central network, in addition to VM, it can also include monitoring servers such as data management server DM, MS and centralized data storage device IPSAN.

[0034] figure 1 The monitoring system includes isolation equipment, EC, VC, VM, DM, MS and LNS server. In the monitoring system of the present invention, EC, VC and various servers are referred to as monitoring nodes). exist figure 1 In , the branch network EC and VC...

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Abstract

The invention provides a method for saving WAN (wide area network) bandwidth in an IP (internet protocol) monitoring system. The monitoring system further comprises an EC (electronic computer), a VC (visible computer) and an LNS (L2TP (layer 2 tunneling protocol) network server), wherein at least the EC and the VC are in L2TP tunnel connection with the LNS. The method comprises the following steps: receiving registration messages sent by the EC and the VC, storing address information of EC and VC in the registration messages; after establishing a transmission channel for monitoring video streams on the L2TP between the EC and VC, issuing commands of trying to communicate with an intranet of an opposite terminal to the EC and the VC; receiving an intranet communication trying report sent by the VC, judging whether the EC can communicate with the VC through the intranet according to the address information of the report message and the self-stored address information; if so, sending a communication mode switching command to instruct the EC to switch to an intranet communication mode from the L2TP tunnel communication mode. The method can be used for effectively solving the WAN bandwidth consumption problem in a tunnel mode.

Description

technical field [0001] The invention relates to the field of video monitoring, in particular to a method and device for communication between internal and external networks in an IP monitoring system. Background technique [0002] IP network-based video surveillance has gradually developed into a mainstream solution in the security industry, and has been successfully applied to large-scale projects such as safety projects, highways, public security networks, and parks. The standardization and openness of IP also make it easy to integrate various network islands and make it easy to expand the network scale. Considering the shortage of IPv4 address resources and the reality that the existing regional network address segments overlap with each other, as well as the needs of various network security, isolation devices such as NAT, firewalls, and security isolation gatekeepers are widely used in large-scale networks. This makes the signaling and business processes of the IP-base...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L29/06H04L29/12
Inventor 周迪余剑声
Owner ZHEJIANG UNIVIEW TECH CO LTD
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