| 摘要 |
A guaranteed frame rate (GFR) service providing apparatus and method for an ATM switch is provided. A cell conformance portion applies a test to each ce ll in an input frame with respect to generic cell rate algorithm (GCRA), cell loss priority (CLP) bit, and maximum frame size (MFS), sets the conforming b it (CB) of each cell in the frame to a conforming value if all cells of the fra me pass the test, and sets the CB of each cell in the frame to a non-conforming value if at least one cell of the frame does not pass the test. A buffer management portion allocates cells with CBs set a conforming value to a high priority queue, allocates cells with CBs set a non-conforming value to a low priority queue, transmits the cells allocated to the high priority queue wit h a minimum cell rate (MCR) guaranteed, and transmits the cells allocated to t he low priority queue at a cell rate allowed by a bandwidth available in a network.
|
