System for switching atm switch

Abstract

Abstract PURPOSE:To prevent the abort of a cell at ATM switch changeover by generating a dummy cell so that the number of cells resident in the buffers of two system is equal to each other and setting the result to a switching buffer. CONSTITUTION:Suppose that a #0 ATM switch acts like a master system and a #1 system is not in the service state, then cell counters 11a, 11b are provided on the switching buffers 10a, 10b of respective ATM switches and count the cell number stored respectively in the switching buffers. A difference between stored cells is obtained by a difference detection means 13b, the obtained difference is fed to a dummy cell generating means 12b, which generates the dummy cells of the corresponding number and inputs them to the switching buffer 10b. Then switching operation (data transfer) by the number equivalent to the stored entire cell number in the switching buffers 10a, 10b is implemented.

Inventors

• 👤 Naoyuki Izawa
• 👤 井澤　直行
• 👤 Yoshihiro Uchida
• 👤 佳宏 内田
• 👤 Masami Murayama
• 👤 雅美 村山
• 👤 Yasuhiro Aso
• 👤 麻生　泰宏

Bibliographic Details