My Cisco 3620 NM-HSSI interface has high input errors. There are no input errors if replaced with Cisco 7206 router. The CCO mention if NM-HSSI part number is 800-03616-01, it will have performance problem ( http://www.cisco.com/en/US/partner/products/hw/routers/ps274/products_field_notice09186a0080094c9f.shtml ). But my NM-HSSI part number is 800-03616-02, it was no problem. Attachment is the Cisco 3620 show tech information. Please help to resolve this problem.
Look at attached document. Maximum PPS for 3620 is between 20,000 and 40,000.
HSSI/DS3 can be 70,000 monodirectional, twice in full duplex.
Even for the much newer ISR platform, the recommended platform for DS3 are the 38xx.
You can try shaping or policing traffic on the other end, but certainly is not a good solution.
Hope this helps, please rate post if it does!