RLDRAM BIST issue can result in XPP BIST failure affecting 2x100G and 20x10G where they cannot boot up
Experience XPPBISTfailure during boot.
XPP BIST All + Pram 0/1 from Packet Processor 1 ... failed XPP BIST All + Pram 0/1 from Packet Processor 1 ... failed RLDRAM BIST Failure. Please wait while it will recover... Bringing the card down. Module is down. reason CARD_DOWN_REASON_BOOT_FAILED, Err Code = 27.
Software Release: 5.7, 5.7a, all 5.6 Fixed in Version: N/A
The HW strapping option around the RLDAM for the blade had to be tweaked post FCS to address MFG yield.Bow with SN before CWB0436Kxxx an Ender with SN before CWC0435Kxx are potentially susceptible to this issue.
Contact Technical Support for a version of code that contains the fix.
If this issue is encountered and the symptom matches, a power-off/on from CLI will recover the blade.