for Cisco NCS 4201 and Cisco NCS 4202: T1/E1 CEM Interface Module

Improvements

• Framed SAToP System BERT
  You can configure SATOP system BERT with framing under CEM circuits on T1 or E1 interfaces and verify if the BERT is stable and transmitted end-to-end.
• User-defined Remote Loopback on T1 Interfaces
  You can customize the loopback codes on T1 in a 16-bit format in contrast to the standard 6-bit loop code on the 48-port T1 interface module.

Bug fixes

CSCwf07736 - CEM interface counters momentarily report error when x21 xconnect is cleared and re-established.
CSCwh30217 - With rate of OC12 we see "threshold sf-ber 3" getting added under show run command.
CSCwf86864 - CEM traffic flow is dropped in one direction when DEI bit set.

Open problems

• CSCwh75614 - Increased CPU after upgrading router to 17.6.3 from 16.9.4 when 1000 SLM/DMM sessions are configured.

CSCwh69286 - Support required for LF and RF on Ethernet interfaces.
CSCwh82358 - Service instance IDs of integers 4001-5000 is not supported.