8. Performance > Congestion Detection and Management
197
Tsi578 User Manual
June 6, 2016
Integrated Device Technology
www.idt.com
Figure 42: Congestion and Detection Flowchart
Start
Receive packet
into egress queue
Number of
packets in queue
>=
Depth ?
Increment
Congestion Counter
by 1
Yes
No
Leak Rate timer expire
?
Congestion Period
timer expire
?
Yes
Yes
No
No
Increment
Congestion Period
Counter by 1
Yes
No
Clear
Congestion Period
Counter
Congestion Period
Counter read by software
?
Decrement
Congestion Counter
by 1
Congestion Counter
>= Congestion Threshold
?
Yes
No
Set OUTB_DEPTH
interrupt
Yes
No
Yes
No
Reset
Error Rate Bias
timer
Decrement
Congestion Counter
Congestion Counter
read by software
?
Error Rate Bias
timer expire
?
Wait for next
packet
Содержание Tsi578
Страница 1: ...IDT Tsi578 Serial RapidIO Switch User Manual June 6 2016 Titl ...
Страница 20: ...About this Document 20 Tsi578 User Manual June 6 2016 Integrated Device Technology www idt com ...
Страница 102: ...4 Internal Switching Fabric Packet Queuing 102 Tsi578 User Manual June 6 2016 Integrated Device Technology www idt com ...
Страница 228: ...11 Signals Pinlist and Ballmap 228 Tsi578 User Manual June 6 2016 Integrated Device Technology www idt com ...
Страница 504: ...B Clocking P_CLK Programming 504 Tsi578 User Manual June 6 2016 Integrated Device Technology www idt com ...
Страница 526: ...Index 526 Tsi578 User Manual June 6 2016 Integrated Device Technology www idt com ...