Method and apparatus for transceiving multiple services data simultaneously over SONET/SDH

An apparatus comprising:

• a memory;
• means for processing an STS-N frame wherein said means for processing further comprises
• means for initializing a row count value, a column count value, and a subcolumn count value to corresponding initial count values,
• means for restoring from the memory an intermediate state corresponding to a subcolumn count value wherein the intermediate state further corresponds to a SONET STS-1 equivalent frame of the STS-N frame,
• means for processing data from the STS-N frame in response to the row count value, the column count value and provisioning information,
• means for updating the intermediate state in response to said means for processing data,
• means for saving to the memory the updated intermediate state corresponding to the subcolumn count value, and
• means for incrementing the subcolumn count value.

An apparatus comprising:

• a row counter;
• a column counter;
• a subcolumn counter;
• a first memory configured to store N intermediate states wherein each intermediate state corresponds to a SONET STS-1 equivalent frame of an STS-N frame;
• a second memory configured to store provisioning information;
• a processor, coupled to the first memory, the second memory, and counters, and configured to
• restore from the first memory an intermediate state corresponding to a count value of the subcolumn counter,
• process data from the STS-1 equivalent frame in response to the provisioning information and count values of the row counter and column counter,
• update the intermediate state corresponding to the count value of the subcolumn counter,
• save to the first memory the intermediate state corresponding to the count value of the subcolumn counter, and
• increment the count value of the subcolumn counter.