LAN9303MI-AKZE Datasheet, PDF (86/386 Pages) SMSC Corporation – Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII

Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII
Datasheet
The ingress flow calculation is based on the packet type and the device configuration as shown in
Figure 6.8.
Get Flow Priority
Packet
from H ost & queue Y
calculation not
requested
N
DA Highest
N
Priority
Y
wait for ALR result
Y _{Use Precedence} N
Y ALR Priority
Enable Bit
N
N
VL Higher
Priority
Y
Use Tag &
Y
Packet is
Tagged
N
Y _{Packet is IPv4}
N
Y _{Packet is IPv4/v6}
& Use IP
N
Use Tag &
Y
Packet is
Tagged
N
Flow Priority =
ALR Priority
Flow Priority =
IP Precedence
Flow Priority =
DIFFSERV[TOS]
Flow Priority =
DIFFSERV[TC]
Flow Priority =
Default Priority[Source
Port]
Flow Priority =
Priority Regen[VLAN
Priority]
Get Flow Priority Done
Revision 1.5 (07-08-11)
Figure 6.8 Switch Engine Ingress Flow Priority Calculation
86
DATASHEET
SMSC LAN9303M/LAN9303Mi