An in-band communication scheme reports the results of loop performance measurements from a remote site to a test site, by deliberately injecting, into a loopback sequence of a repeated code word, a selected one of different numbers of errors. The number of errors is selectable from among a plurality...http://www.google.fr/patents/US6859900?utm_source=gb-gplus-shareBrevet US6859900 - Injection of selected numbers of errors in returned loopback data to provide gray-scale type qantification of loop performance measurements
Injection of selected numbers of errors in returned loopback data to provide ...