Hirschmann RS20 User Manual page 112

Network load control
7 1 6 6
Figure 29: Ethernet data packet with tag
Figure 30: Tag format
Although VLAN prioritizing is widespread in the industry sector, it has a num-
ber of limitations:
The additional 4-byte VLAN tag enlarges the data packets. With small
data packets, this leads to a larger bandwidth load.
112
4 2 42-1500 Octets
min. 64, max. 1522 Octets
4 Octets
7.4 QoS/Priority
4
t
t
Basic Configuration L2P
Release 4.2 07/08