Assigning A Dscp Policy Based On Tcp Or Udp Port; Number - HP ProCurve 5300xl Series Management Manual

Quality of Service (QoS): Managing Bandwidth More Effectively
Using QoS Classifiers To Configure Quality of Service for Outbound Traffic
N o t e
8-26
Values in these two
columns define the
QoS classifiers to
use for identifying
packets to prioritize.
Figure 8-8. Example of Configuring and Listing 802.1p Priority Assignments on
TCP/UDP Ports
Assigning a DSCP Policy Based on TCP or UDP Port Number
The Series 5300xl switches do not support DSCP policies on IPv4 packets with
IP options. The 3400cl/6400cl switches do not support TCP/UDP QoS policies
on packets with IP options. For more information on packet-type restrictions,
refer to ''Details of Packet Criteria and Restrictions for QoS Support'', on page
8-70.
This option assigns a previously configured DSCP policy (codepoint and
802.1p priority) to (IPv4) TCP or UDP packets having the specified port
number. That is, the switch:
1. Selects an incoming IP packet if the TCP or UDP port number it carries
matches the port number specified in the TCP or UDP classifier (as shown
in figure 8-8, above).
2. Overwrites (re-marks) the packet's DSCP with the DSCP configured in the
switch for such packets.
Indicates 802.1p priority
assignments are in use for
packets with 23 or 80 as a
TCP or UDP Application
port number.
Shows the 802.1p priority
assignment for packets
with the indicated QoS
classifiers.