QoS/Priority
RM Web L3P
Release
4.1
03/08
6.2
Port configuration
97
In VLAN priority remarking, the device modifies the VLAN priority of the
IP packets if the packets are to be sent with a VLAN tag (see on page 84
„Setting up the VLAN“).
Based on the traffic class to which the IP packet was assigned (see
above), the device assigns the new VLAN priority to the IP packet in
accordance with table 9.
Example: Received IP packet with a DSCP value of 16 (cs2) is assigned
to traffic class 1 (default setting). The packet is now assigned VLAN
priority 2 in accordance with table 9.
6.2.3 Displaying the untrusted traffic class
"Untrusted traffic class" shows you the traffic class that is used in the "un-
trusted" trust mode. When you change the port priority (see on page 95 „En-
tering the port priority“), the untrusted traffic class also changes (see table 8).
6.2.4 Shaping rate
The device allows you to limit the maximum bandwidth of a port (traffic shap-
ing).
Click once on a cell in the "Shaping rate" column to select one of the possible
values for the bandwidth limit in the range from 5% to 95%, in steps of 5%.
The value "off" means: no bandwidth limit (0%).
The value "95" means: 95% of the bandwidth is available.
If the bandwidth set is temporarily exceeded, the device saves the data and
sends it when the bandwidth load has decreased again. Traffic Shaping thus
smooths out any overload situations.
If Traffic Shaping is active on an interface, the device ignores the bandwidths
guaranteed for Weighted Fair Queuing.
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