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Network equipment overload protection method, overload protection function test method and system

A network equipment, overload protection technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve the problems of relying on large external resources, randomly discarding packets, unable to successfully construct overload scenarios, etc., to achieve the effect of saving external resources

Active Publication Date: 2018-01-05
MAIPU COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The technical problem to be solved by the present invention is: to propose a network equipment overload protection method, overload protection function testing method and system, to solve the problem of random discarding of packets after limiting overload in the overload protection scheme of traditional technology, and to verify The problem of not being able to successfully construct overloaded scenarios or relying on a large number of external resources

Method used

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  • Network equipment overload protection method, overload protection function test method and system
  • Network equipment overload protection method, overload protection function test method and system
  • Network equipment overload protection method, overload protection function test method and system

Examples

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Embodiment 1

[0076] In the embodiment of the present invention, an example is used to verify that multicast data packets are discarded prior to unicast data packets. First, an overload scenario needs to be set up (taking a network device with a full load of 300MPPS as an example), such as Figure 4 Shown:

[0077] 1) In order to use fewer ports and low-end testers, the method of creating logical ports and virtual output queues (a large number of logical ports are abstracted from physical ports, and each logical port corresponds to a virtual output queue) is adopted. But does not rely on virtual output queues to limit overloading.

[0078] 2) Taking the calculation of a 64-byte 1Gbps unicast and a 64-byte 1Gbps multicast incoming packet as an example, calculate the minimum number of copies that need to be copied for a multicast data packet:

[0079] The packet length is 64 bytes, the frame preamble length is 8 bytes, and the frame interval is 12 bytes, so the actual rate of each data packe...

Embodiment 2

[0085] The embodiment of the present invention is illustrated by taking the priority of multicast low-priority data packets over multicast high-priority data packets as an example. First, an overload scenario needs to be set up (taking a network device with a full load of 300MPPS as an example), such as Figure 5 Shown:

[0086] 1) In order to use fewer ports and low-end testers, the method of creating logical ports and virtual output queues is adopted, that is, by abstracting a large number of logical ports in the physical ports, each logical port corresponds to a virtual output queues, but does not rely on virtual output queues to limit overloading.

[0087] 2) Taking the calculation of two 64-byte 0.5Gbps multicast packets as an example, calculate the minimum number of copies that need to be copied for multicast:

[0088] The packet length is 64 bytes, the frame preamble length is 8 bytes, and the frame interval is 12 bytes, so the actual rate of the two incoming packets =...

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Abstract

The invention relates to an overload protection technology in the field of data communication, and discloses a network equipment overload protection method which solves the problems that in overload protection schemes of traditional technologies, a data packet may be randomly discarded after overload is limited, and an overload scene cannot be successfully built or lots of external resources are depended on while overload is verified. The method comprises the step of discarding the newly arrived data packet according to types and priority sequences of the data packets, when network equipment enters overload protection, wherein multicast data packets are discarded prior to unicast data packets, and the multicast data packets with low priority are discarded prior to the multicast data packets with high priority. In addition, the invention also discloses a network equipment overload protection test system and a network equipment overload protection test method, which are applicable to testing overload protection performance of the network equipment.

Description

technical field [0001] The invention relates to an overload protection technology in the field of data communication, in particular to a network device overload protection method, an overload protection function testing method and a system. Background technique [0002] With the rapid development of communication technology, the dramatic increase in communication traffic leads to the need for high-performance and high-capacity switching chips. Taking switching and routing equipment as an example, due to the increase in people's demand for data volume, such as digital TV on demand, Internet access, etc., the bandwidth requirements provided by switches and routers are also getting higher and higher. This requires efforts to increase the performance and capacity of the core device hardware. When an emergency occurs and the data packets exceed the maximum processing capacity of the network equipment, overload protection is required. There are mainly two overload protection sche...

Claims

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Application Information

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IPC IPC(8): H04L12/823H04L12/851H04L47/32
Inventor 陈旭峰杨大川
Owner MAIPU COMM TECH CO LTD
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