A method and device for adjusting the working rate of switch interface
A technology of working speed and aggregation switch, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc.
Active Publication Date: 2017-12-08
ZHEJIANG UNIVIEW TECH CO LTD
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Problems solved by technology
If the media flow of these interfaces is very large instantaneously, the outgoing port of the aggregation switch, that is, the port connected to the core switch will not be able to bear the burden.
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[0022] In a large-scale video surveillance network, there are numerous surveillance front-end equipment. In order to connect these surveillance front-end devices to the video surveillance network, various switches need to be deployed. The first category is the access switch that connects the surveillance front-end equipment to the video surveillance network; the second category is the aggregation switch that converges the access switches; the third category is the core switch at the core layer. In this large-scale video surveillance network, the simultaneous surveillance services are interleaved. For example, monitoring front-end equipment to carry out storage services to storage devices; monitoring back-end equipment to initiate live services for one or more monitoring front-end equipment, and so on. In order to ensure the smooth development of various monitoring services, a good network environment is required. Regarding storage streaming and live streaming, that is, no pac...
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The invention provides a method for adjusting the working speed of convergence switch interfaces. The method is applied to a video management server. The method comprises the steps that A, an SNMP is used for inquiring an MAC address table of a convergence switch, and the MAC addresses learned on the interfaces connected to a switch of the convergence switch are acquired; B, the speeds of all the interfaces of the convergence switch are calculated according to the real-time condition flow and storage flow information sent by all monitoring front end devices in current local records combined with the MAC address information learned on all the interfaces of the convergence switch; C, the working speed of the interfaces with the speed smaller than a preset threshold value is adjusted to be 100 M, and the working speed of the interfaces with the speed larger than or equal to the preset threshold value is adjusted to be 1000 M. According to the scheme, the video management server is used for dynamically adjusting the speeds of the interfaces of the convergence switch according to the code stream needing to be borne in a current network and insisting on the applicable principle, so that the problem that the bandwidth of the interfaces of the convergence switch can be insufficient, and packet loss happens is solved.
Description
Technical field [0001] The present invention relates to the technical field of video surveillance networks, in particular to a method and device for adjusting the working rate of a switch interface. Background technique [0002] In the transmission network of IP video surveillance, the transmission requirements for network equipment are quite different from the traditional requirements, mainly because the IP video surveillance data packets carried by it have their own characteristics. As we all know, IP video data packets are divided into I frames, P frames, and sometimes B frames. For network equipment that undertakes video data transmission, the largest traffic load is that I-frame data of multiple video streams are swarming at the same time. At this time, the superposition of several channels of I-frame data may instantaneously exceed the outgoing port rate of the network device, which will cause the loss of video data packets. The actual experience for the user is that the i...
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IPC IPC(8): H04L12/24H04L12/801H04N7/18
Inventor 周迪王军
Owner ZHEJIANG UNIVIEW TECH CO LTD