PLATFORM-CROSSBAR-1-SERDES_ERROR_LNK1 on A9K

[Rps-Cheers]

Hello Friends

Our device occur this error message, and it shows serverl times per hour.

LC/0/6/CPU0:Dec 18 05:30:40 : pfm_node_lc[298]: %PLATFORM-CROSSBAR-1-SERDES_ERROR_LNK1 : Set|fab_xbar[168017]|Crossbar Switch(0x1017007)|Slot_5_XBAR_0 
LC/0/6/CPU0:Dec 18 05:30:50 : pfm_node_lc[298]: %PLATFORM-CROSSBAR-1-SERDES_ERROR_LNK1 : Clear|fab_xbar[168017]|Crossbar Switch(0x1017007)|Slot_5_XBAR_0 
RP/0/RSP1/CPU0:Dec 18 05:31:27 : pfm_node_rp[361]: %PLATFORM-CROSSBAR-1-SERDES_ERROR_LNK1 : Set|fab_xbar[204909]|Crossbar Switch(0x1017018)|XBAR_0_Slot_8 
RP/0/RSP1/CPU0:Dec 18 05:31:37 : pfm_node_rp[361]: %PLATFORM-CROSSBAR-1-SERDES_ERROR_LNK1 : Clear|fab_xbar[204909]|Crossbar Switch(0x1017018)|XBAR_0_Slot_8

LC and RSP1 state is 'IOS XR RUN' by "admin show plat " command.

What should i do for resolve this issue?

Thanks a lot !

[tkarnani]

Hi,

Slide 23 gives a good overview of the fabric

https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2018/pdf/BRKARC-2003.pdf

Essentially a link between the line card and the RSP1 had an error.

can we try to physically re-seat Line card 6 to see if the error repeats?

if it is still re-occurring after a physical re-seat, i would recommend opening a TAC case, you may need an RMA

Thanks

[Rps-Cheers]

Hi   tkarnani

Thanks for your response.

Yes, i just want to OIR LC/0/6/CPU0. How about RP/0/RSP1/CPU0? There is also an error info as below on RP/0/RSP1/CPU0, and there is no LC on SLOT8.

RP/0/RSP1/CPU0:Dec 18 05:31:27 : pfm_node_rp[361]: %PLATFORM-CROSSBAR-1-SERDES_ERROR_LNK1 : Set|fab_xbar[204909]|Crossbar Switch(0x1017018)|XBAR_0_Slot_8 
RP/0/RSP1/CPU0:Dec 18 05:31:37 : pfm_node_rp[361]: %PLATFORM-CROSSBAR-1-SERDES_ERROR_LNK1 : Clear|fab_xbar[204909]|Crossbar Switch(0x1017018)|XBAR_0_Slot_8

Do we need reset the RSP1 ? 

Thanks

[Rps-Cheers]

No one has encountered this problem anymore？