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### Instruction:
PCIER-3-PCIE_LINK_DOWN_ERR
### Response:
(Severity: 3), (Category: PLATFORM), (Description: Detected PCIE link down on one of the PCIE root/bridge downstream port), (Recommended Action: Current action is to log a PFM message and try to continue as operational so that it wont effect on the ongoing activities. If it is a critical PCIE link down, it will be eventually identified by RSP as heartbeat loss and card will be reloaded by shelfmgr. Post reload, it is expected this fault will recover.)
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