This article provides information on “mqss_precl_is_stream_in_use: Getting center-chip PIC failed - status 15, ifd_index “ error.

These logs can be seen on MX series having MPC8E card with 1.6T config and PIC mode is 100G.
Below mentioned logs might be seen :-

mx2020-1 : %PFE-3: fpc14 mqss_precl_is_stream_in_use: Getting center-chip PIC failed - status 15, ifd_index 249
mx2020-1 : %PFE-3: fpc14 pic_ifd_get_cchip_pic: Couldn't find the IFD - ifd_index 249
mx2020-1 : %PFE-3: fpc14 mqss_ifd_get_cchip_pic: Getting center-chip PIC failed - status 15, ifd_index 249
mx2020-1 : %PFE-3: fpc14 mqss_precl_is_stream_in_use: Getting center-chip PIC failed - status 15, ifd_index 249
mx2020-1 : %PFE-3: fpc14 pic_ifd_get_cchip_pic: Couldn't find the IFD - ifd_index 249
mx2020-1 : %PFE-3: fpc14 mqss_ifd_get_cchip_pic: Getting center-chip PIC failed - status 15, ifd_index 249
mx2020-1 : %PFE-3: fpc14 mqss_precl_is_stream_in_use: Getting center-chip PIC failed - status 15, ifd_index 249
mx2020-1 : %PFE-3: fpc14 pic_ifd_get_cchip_pic: Couldn't find the IFD - ifd_index 249
mx2020-1 : %PFE-3: fpc14 mqss_ifd_get_cchip_pic: Getting center-chip PIC failed - status 15, ifd_index 249
mx2020-1 : %PFE-3: fpc14 mqss_precl_is_stream_in_use: Getting center-chip PIC failed - status 15, ifd_index 249
mx2020-1 : %PFE-3: fpc14 pic_ifd_get_cchip_pic: Couldn't find the IFD - ifd_index 249
mx2020-1 : %PFE-3: fpc14 mqss_ifd_get_cchip_pic: Getting center-chip PIC failed - status 15, ifd_index 249

These errors resulted when IFD is not programmed properly in FPC.

Also while dumping the IFD details in VTY using "show ifd brief ", we will not be able to find the IFD details for the IFD index mentioned in the error logs.

From the logs , we could see chassisd is pushing IFD config for port numbers 0-3 and 6-8.
But we can configure only 3 IFD per WO TDM table which is resulting in this error.

For MPC8E, EA capacity is treated as 240G and hence high-performance mode is calculated based on 240G. But when MPC8E is configured with a bandwidth of 1.6T, then EA capacity should be treated as 480G and high-performance mode must be calculated accordingly.

Please configure the number of ports as 6 to avoid this error using below command :-
                    >set chassis fpc <fpc-slot> pic <pic-slot> number-of-ports 6

The feature supports only 3*100G ports per EA in 400G mode(1.6T per fpc). So, we can use 3 ports from EA 1 and 3 ports from EA 2 chip.
This means we can use only ports 0, 1 and 2 of EA1 and ports 6, 7 and 8 of EA2 in MRATE MICs. 

2023-09-05: Drafting article

> set chassis fpc <fpc-slot> pic <pic-slot> number-of-ports 8 >>> This doesn't help in case of using 8x100G ports but works fine in case of 6 ports.
Instead, please configure all the 8 ports with speed 100G then restart the FPC.
          > set chassis fpc x pic 0 port x speed 100g