CRC counter normalization
View Patent ↗The ability to accurately and efficiently calculate and report communication errors is becoming more important than ever in today's communications environment. More specifically calculating and reporting CRC anomalies in a consistent manner across a plurality of communications connections in a network is crucial to accurate error reporting. Through a normalization technique applied to a CRC computation period (e.g., the PERp value), accurate error identification and reporting for each individual connection can be achieved.
1. A method of reporting severely errored seconds (SES) in a consistent manner across a plurality of connections in a service provider network comprising:
computing a local CRC octet based on a received bit stream;
comparing, by a processor, the local CRC octet to a received CRC octet;
identifying a CRC anomaly when the local CRC octet is not identical to the received CRC octet; and
normalizing a CRC anomaly counter based on a value for a CRC computation period (PERp), wherein a Severely Errored Second is declared if there are more than N CRC anomalies in a second.
2. The method of claim 1 , wherein the normalizing of the CRC anomaly counter comprises incrementing the CRC anomaly counter by a value of M, wherein the value M is equal to PERp/K, and K is a positive integer.
3. The method of claim 2 , wherein K is equal to 20 or 15.
4. The method of claim 1 , wherein N is equal to 18.
5. The method of claim 1 , further comprising receiving an alarm.
6. The method of claim 1 , further comprising dispatching a network technician to fix a connection.
7. The method of claim 1 , further comprising communicating SES information to a service provider management system.
8. The method of claim 1 , wherein the service provider network uses ADSL2.
9. The method of claim 1 , wherein the service provider network uses VDSL2.