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Certain MICs may fail to boot on MPC3E-3D-NG and MPC2E-3D-NG

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Article ID: TSB17756 TECHNICAL_BULLETINS Last Updated: 14 Apr 2020Version: 2.0
Alert Type:
PSN - Product Support Notification
Product Affected:
MIC-3D-20GE-SFP-E 750-049846 REV21 and below
MIC-MACSEC-20GE 750-077332 REV12 and below
Alert Description:
    A certain signal on MIC-3D-20GE-SFP-E has been identified to be terminated improperly, that may prevent those MICs from booting up on the following MPCs:
 
MPC3E-3D-NG,
MPC3E-3D-NG-Q,
MPC2E-3D-NG, and
MPC2E-3D-NG-Q
 
    When a MIC-3D-20GE-SFP-E fails to boot due to this issue, the following errors can be seen:
 
I2C a1:0x6c probe failed.
Failed to create trinity I2C dev for 0xa1/0x6c
mic_level1_init: MIC(3/2) - Failed to config IX
CMT: PIC 2 INIT failed
CMT: Error initializing PIC 2, ID 0x0a7f
  
I2C Failed device: group 0x41 address 0x53
CMT: cmtfpc_pic_id_read failed for FPC 8, PIC 3
jam_plugin_common_cmtfpc_pic_id_read: ideeprom_read failed for pic 3 on FPC8 err 1 i2c grp 0xa1
CMT: failed to qualify PIC 3 ID, errno 1
CMT: failed to request pic 0 online


    When a MIC-MACSEC-20GE fails to boot due to this issue, the following errors can be seen:

gi2mic_phy_mdio_periodic_access_test: Wrong VSC8584 Vendor ID value fetched from MDIO read - expected = 0x7, actual = 1c9
gi2mic_periodic_access_sanity_check: MDIO access failure reported in MIC(0/0)


    This issue can manifest itself only at boot. Once a MIC boots without experiencing the errors above, such a MIC can operate normally.
Solution:
    Juniper Networks has developed the hardware solution for customers who have experienced this issue.
 
Implementation:
  Please work with JTAC and/or service manager with a JTAC case number to request for the detail of the solution.
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