Hirschmann PowerMICE - Page 170

Network Load Control
170
8.4 QoS/Priority
UM Basic Configuration L3P
Release 7.1 12/2011
Note: Network protocols and redundancy mechanisms use the highest traffic
class 7. Therefore, select other traffic classes for application data.
Figure 37: Ethernet data packet with tag
Figure 38: Tag format
t
min. 64, max. 1522 Octets
Preamble Field Start Frame Delimiter Field Destination Address Field Source Address Field Tag Field Data Field Length/Type Field Data Field Pad Field Frame Check
Sequence Field
42-1500 Octets 4246671
t
4 Octets
User Priority, 3 Bit Canonical Format Identifier
1 Bit
VLAN Identifier
12 Bit
Tag Protocol Identifier
2 x 8 Bit