Product guide

Troubleshooting a Shortage of Per-Port Rule Resources on the
3400cl/6400cl Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19
Examples of QoS Resource Usage on 3400cl/6400cl Switches . 8-20
Using QoS Classifiers To Configure
Quality of Service for Outbound Traffic . . . . . . . . . . . . . . . . . . . . . . . 8-23
Assigning an 802.1p Priority Based on TCP or
Assigning an 802.1p Priority to IPv4 Packets on the
Assigning an 802.1p Priority to IPv4 Packets on the
Assigning a DSCP Policy on the Basis of the DSCP in
Example of Changing the Priority Setting on a Policy
Viewing the QoS Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23
No Override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-24
QoS UDP/TCP Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25
UDP Port Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-26
Assigning a DSCP Policy Based on TCP or UDP Port Number . 8-27
QoS IP-Device Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-31
Assigning a Priority Based on IP Address . . . . . . . . . . . . . . . . . . . 8-32
Assigning a DSCP Policy Based on IP Address . . . . . . . . . . . . . . 8-33
QoS IP Type-of-Service (ToS) Policy and Priority . . . . . . . . . . . . . . . 8-37
Basis of the ToS Precedence Bits . . . . . . . . . . . . . . . . . . . . . . . . . 8-38
Basis of Incoming DSCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-39
IPv4 Packets Received from Upstream Devices . . . . . . . . . . . . . 8-43
Details of QoS IP Type-of-Service . . . . . . . . . . . . . . . . . . . . . . . . . 8-47
QoS Layer-3 Protocol Priority (5300xl and 4200vl Switches Only) . . 8-50
Assigning a Priority Based on Layer-3 Protocol . . . . . . . . . . . . . . 8-50
QoS VLAN-ID (VID) Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-52
Assigning a Priority Based on VLAN-ID . . . . . . . . . . . . . . . . . . . . 8-52
Assigning a DSCP Policy Based on VLAN-ID (VID) . . . . . . . . . . . 8-54
QoS Source-Port Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-58
Assigning a Priority Based on Source-Port . . . . . . . . . . . . . . . . . . 8-58
Assigning a DSCP Policy Based on the Source-Port . . . . . . . . . . 8-60
Differentiated Services Codepoint (DSCP) Mapping . . . . . . . . . . . . . 8-64
Default Priority Settings for Selected Codepoints . . . . . . . . . . . . 8-65
Quickly Listing Non-Default Codepoint Settings . . . . . . . . . . . . . 8-66
Note On Changing a Priority Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-67
When One or More Classifiers Are Currently Using the Policy . 8-68
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