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AT8902M
The AT8902M provides up to four 10GbE uplinks connected to the fabric switch. The following
table shows the available connection, depending on the fabric mezzanine options.
Table 3-24: Fabric Interface 10GbE Port Maping
CLI ID
0/28
0/27
0/26
0/25
3.3.3
IPMI
The AM4310 supports an intelligent hardware management system based on the Intelligent
Platform Management Interface (IPMI).
The main building blocks of the IPMI architecture are:
• MMC (Module Management Controller)
• FUM (Firmware Upgrade Manager)
MMC
The MMC interacts with the IPMC on the base board through the IPMB-L-interface. The con-
troller provides the information about the AMC module, reports voltage levels and the temper-
ature at three different spots on the PCB.
FUM
The FUM controls the MMC firmware update. Two EEPROM banks are connected to the FUM,
one for the old firmware image and one for the new image. During an update, the new firmware
image will be programmed in one of the two EEPROMs. This new image is then programmed
into the MMC under control of the FUM. If the MMC does not start correctly with the new image,
the previous image of the other EEPROM will be programmed in the MMC.
10GbE Port in AMC slots
AMC B1 XFP1
AMC B1 XFP2
AMC B2 XFP1
AMC B2 XFP2
Page 3 - 29
Hardware Description
Supported by fabric
mezzanine GbE switch
BCM56504, BCM56304
BCM56504, BCM56304,
BCM56502, BCM56302
AT8902M User Guide
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