3Com CoreBuilder 3500, Implementation Manual

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504 C
HAPTER
17: Q
O
S
AND
RSVP
Example 4: Assigning
High Priority to
Specific Traffic
In the following example, a classifier is defined to give high priority to
Web server (http) traffic. In this configuration, all Web servers have
addresses that end in
.222
. This example could apply to any type of
traffic that needs high priority (for example, mail server traffic).
Figure 89 Flow Classifier for Assigning High Priority to Web Traffic
Classifier definition for high-priority Web traffic:
220.1.2.0
128.10.0.0
Web
servers
Web clients
128.10.0.222
220.1.2.222
198.20.30.222
176.9.0.222
176.9.0.0
198.20.30.0
subnet subnet
subnet subnet
Classifier Field Classifier Definition
Classifier Number 17
Classifier Name httpServer1
Cast Type unicast
IP protocol type TCP
Source IP address 0.0.0.0
Source IP address mask 0.0.0.0
Destination IP address 0.0.0.222
Destination IP address mask 0.0.0.255
UDP source port range (start) 0
UDP source port range (end) 65535
UDP destination port range (start) 80
UDP destination port range (end) 80