IvanRocha Per sentito dire? A parte il fatto che è capitato a me, quindi hai una testimonianza diretta..... Si chiama S.O.S. Save Our Showtime: profilo speciale (spesso) a 12 dB SNRm per linee particolarmente disturbate. Save our showtime (SOS) is a technology for enhancing line stability. Compared with seamless rate adaptation (SRA), SOS features faster line stability detection, which significantly reduces port offline rates caused by sudden noise increase. In addition, line gains remain unchanged during the entire SOS process, preventing unstable noise increase to lines.
When loud noises are suddenly increased to lines, the SOS feature allows the ports to work at a rate lower than before without going offline, which minimally affects services and supports rapid service recovery. After the noises are eliminated, the SOS feature allows the ports to work at a rate as before to recover the lines. [...] Save Our Showtime is applied in case of a strong noise increase at a point in time where the noise margin of the multi-tone system is negative. Since it is impossible to accurately determine how many bits each carrier can convey, the bitloading is drastically decreased to avoid resynchronization or re-initialization of the multi-tone system. SOS is usually followed by SRA for upwards adaptation of the overall bit rate.
Eccoti alcuni esempi:
https://www.hwupgrade.it/forum/showpost.php?p=45671988&postcount=111989
https://www.hwupgrade.it/forum/showpost.php?p=46162470&postcount=117919
UOMO AVVISATO........ MEZZO SALVATO😎😎😎
