A kind of atca frame and its ipmb connection method

Abstract

The invention discloses an advanced telecommunications computing architecture (ATCA) machine frame and an intelligent platform management bus (IPMB) connection method thereof; the ATCA machine frame comprises an ATCA framework with a plurality of trenches and ATCA veneers which are inserted into the trenches; each ATCA veneer comprises two switch boards and at least one gusset plate; the ATCA veneers are provided with intelligent platform management controllers (IPMCs); shelf management controllers (ShMCs) are respectively integrated on the two switch boards; for each switch board, the ShMC on the switch board is in point-to-point star-shaped connection with the IPMCs of all the gusset plates and the IPMC of the other switch board, and the ShMC on the switch board is a collection node; the ShMC on a main switch board is in point-to-point communication with the IPMC of a backup switch board or the IPMC of one gusset plate at the same time; and when the main switch board fails to work, the backup switch board takes over the work of the main switch board and completes the functions of the original main switch board. According to the invention, the problem that a whole IPMB bus is clamped due to the single IPMB fault can be solved, and hardware resources can be saved.

Description

technical field [0001] The invention relates to the technical field of communication equipment, in particular to an ATCA frame and an IPMB connection method thereof. Background technique [0002] ATCA (Advanced Telecommunications Computing Architecture, Advanced Telecommunications Computing Architecture) is an open, interoperable general standard system platform proposed by PCIMG (PCI Industrial Computer Manufacturers Group, PCI Industrial Computer Organization). [0003] In the ATCA chassis, the ShMC (Shelf Management Controller, Shelf Management Controller) is responsible for completing the management of the boards in the ACTA system by communicating with the IPMB (Intelligent Platform Management Bus, Intelligent Platform Management Bus) on the boards. IPMC (Intelligent Platform Management Controller, Intelligent Platform Management Controller) is used to manage, monitor and control the power supply voltage and temperature sensors on the single board. [0004] The chassis...

AI Technical Summary

Problems solved by technology

[0014] The IPMB dual-bus connection method has the following disadvantages: if the I2C signal of an ATCA board is abnormal (SCL or SDA is always low), the entire I2C bus will be clamped (normal data transmission and reception cannot be performed), causing all ATCA boards to fail. Chassis management communication cannot be performed through the I2C bus; in addition, the location of the I2C faulty single board cannot be located

[0015] The IPMB dual-star connection method has the following disadvantages: the chassis management board and the switch board are separated into two types of single boards, and two chassis management boards and two switch boards are required for actual use.

Compared with the situation where the chassis management function is integrated on the switch board, there is one more board, which occupies more hardware resources and increases the product cost.

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