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CRC errors CPAK-100G-LR4

Kandarp Patel
Level 1
Level 1

Has anyone experienced an issue getting CRC errors whole using CPAK-100G-LR4 with CFP2-to-CPAK port adapter?

I am seeing lot of CRC errors on HundredGig interface connected to CPAK-100G-LR4 using CFP2-to-CPAK port adapter on A9K-MPA-1X100GE of A9K-MOD200-TR modular card. We tried changing the CPAK, Fiber cable and cleaned it but still giving the errors.

If we move the connection to old module "A9K-1X100GE-TR" and sfp "CFP-100G-LR4" errors are not seen.So its not the cable or other end. so wondering something is causing from CFP2-to-CPAK port adapter setup.

1 Reply 1

tkarnani
Cisco Employee
Cisco Employee

there is an older bug that may be causing an issue

https://bst.cisco.com/bugsearch/bug/CSCvz49512