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Quality of Service (QoS): Managing Bandwidth More Effectively
Using QoS Classifiers To Configure Quality of Service for Outbound Traffic
For example, configure and list the 802.1p priority for packets carrying the
following IP addresses:
IP Address 802.1p Priority
10.28.31.1 7
10.28.31.130 5
10.28.31.100 1
10.28.31.101 1
Figure 15-7. Example of Configuring and Listing 802.1p Priority Assignments for
Packets Carrying Specific IP Addresses
Assigning a DSCP Policy Based on IP Address
This option assigns a previously configured DSCP policy (codepoint and
802.1p priority) to outbound IP packets having the specified IP address (either
source or destination). That is, the switch:
1. Selects an incoming IP packet on the basis of the source or destination IP
address it carries.
2. Overwrites the packet’s DSCP with the DSCP configured in the switch for
such packets, and assigns the 802.1p priority configured in the switch for
the new DSCP. (Refer to
“Differentiated Services Codepoint (DSCP)
Mapping” on page 15-51.)
3. Forwards the packet through the appropriate outbound port queue.
For more on DSCP, refer to “Terminology” on page 15-5.
Steps for Creating a Policy Based on IP Address. This procedure cre-
ates a DSCP policy for IP packets carrying the selected IP address (source or
destination).
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