Assigning A Dscp Policy For A Global Tcp/Udp Classifier - HP 3500 Series Advanced Traffic Management Manual

Quality of Service: Managing Bandwidth More Effectively
Globally-Configured QoS
HP Switch(config)# qos tcp-port 23 priority 7
HP Switch(config)# qos tcp-port 80 priority 2
HP Switch(config)# qos udp-port 23 priority 7
HP Switch(config)# qos udp-port 80 priority 1
HP Switch(config)# qos udp-port range 100 199 priority 3
HP Switch(config)# show qos tcp-udp-port-priority
-------- + --------- ----------- ---------- + ------ -----------
5-24
TCP/UDP port based priorities
| IP Packet Application
Protocol | Type
TCP | IPV4
TCP | IPV4
UDP | IPV4
UDP | IPV4
UDP | IPV4
Values in these two
columns define the QoS
classifiers used to select
the packets to prioritize.
Figure 5-4. Configuring 802.1p Priority Assignments on TCP/UDP Ports

Assigning a DSCP Policy for a Global TCP/UDP Classifier

This global QoS packet-marking option assigns a previously configured or
default DSCP policy (codepoint and 802.1p priority) to TCP or UDP packets
having the specified port number or range of port numbers. When assigning a
DSCP policy, the switch performs the following actions:
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 5-4, above).
2. Overwrites (re-marks) the packet's DSCP with the new DSCP configured
for matching packets.
3. Assigns the 802.1p priority associated with the new DSCP. (See "Differen-
tiated Services Codepoint (DSCP) Mapping" on page 5-90.)
4. Forwards the packet through the appropriate outbound port queue.
Creating a DSCP Policy Based on TCP/UDP Port Number Classifiers.
The following procedure creates a DSCP policy for IP packets carrying the
selected TCP or UDP port-number classifier.
Port Apply rule | DSCP
23 Priority
80 Priority
23 Priority
80 Priority
100-199 Priority
Indicates that 802.1p priority
assignments are in use for
packets with 23, 80 or 100-199
as a TCP or UDP port number.
|
Priority
| 7
| 2
| 7
| 1
| 3
Displays the 802.1p priority
assignment for packets
with the indicated QoS
classifiers.