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CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 12

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.
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Levels of Reliability Requirements

Levels of Reliability Requirements

There are three requirement levels according to the objective and implementation. Table 11-1 lists three levels of reliability requirements.

Table 11-1 Levels of reliability requirements





Fewer faults in the system software and hardware

  • Hardware: simplified circuit design, improved production technique, and reliability test
  • Software: software reliability design and test


No impact on the system when a fault occurs

Device and link redundancy design, switchover policy, and switchover success rate


Rapid recovery from a fault that affects the system

Fault detection, diagnosis, isolation, and recovery

The reliability requirements at level 1 need to be considered during network device design and production; the reliability requirements at level 2 need to be considered during network architecture design; the reliability requirements at level 3 are met using reliability technologies according to the network architecture and service characteristics during network deployment.

Updated: 2019-08-09

Document ID: EDOC1000041694

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