PA-7000 Gen1 SMC HSCI Link Flaps after Reboot or Upgrades

• HSCI Link Flaps observed after Reboot/Upgrade
• If HSCI link is flapping please check brdagent.log file to see if we are observing the following signature.

Petra port 9 flap, marv regs: 6 8003 6 93e1 86 8003 5 0
Petra port 10 flap, marv regs: 6 8003 6 93e1 86 8003 4 0
Petra port 11 flap, marv regs: 6 8003 6 93e1 86 8003 4 0
Petra port 6 flap, marv regs: 6 8003 6 93e1 86 8003 4 0
Petra port 7 flap, marv regs: 6 8003 6 93e1 86 8003 4 0
Petra port 8 flap, marv regs: 6 8003 6 93e1 86 8003 4 0
Petra port 9 flap, marv regs: 6 8003 6 93e1 86 8003 5 0
Petra port 10 flap, marv regs: 6 8003 6 93e1 86 8003 4 0

• PA-7000 series 
• After an SMC reboot
• SMC-A card only

The issue is caused by initialization sequence among internal SMC components that is cleared by reboot. This issue is very infrequent, it only occurs after SMC is rebooted and it is only applicable for SMC-A card and not for SMC-B card.

1. If the failure signature in the symptoms is observed, we recommend to reboot the chassis to clear the HSCI state.
2.  The issue is caused by initialization sequence among internal SMC components that is cleared by reboot.
3.  This issue is very infrequent, it only occurs after a SMC reboot 

NOTE: It is only applicable for SMC-A card and not for SMC-B card