Intel® IXP400 Software
Access-Layer Components: ATM Transmit Scheduler (IxAtmSch) API
April 2005 IXP400 Software Version 2.0 Programmer’s Guide
86 Document Number: 252539, Revision: 007
6.9.1 Latency
The transmit latency introduced by the IxAtmSch component into the overall transmit path of the
processor will be zero under normal operating conditions. This is due to the fact that — when
traffic is queued for transmission — scheduling will be performed in advance of the cell slots on
the physical line becoming available to transmit the cells that are queued.