
Quality of Service (QoS): Managing Bandwidth More Effectively
Using QoS Classifiers to Configure Quality of Service for Outbound Traffic
| 3. Configure the DSCP policy by using qos |
| for each codepoint. (For details, refer to the example later in this section |
| and to “Differentiated Services Codepoint (DSCP) Mapping” on page |
| |
|
|
N o t e | A codepoint must have an 802.1p priority assignment (0 - 7) before you can |
| configure that codepoint as a criteria for prioritizing packets by |
| If a codepoint shows |
| Table (show qos |
| proceeding. |
| 4. Configure the switch to assign the DSCP policy to packets from the |
| |
| specified |
| Syntax: qos |
| This command is optional if a priority has already been |
| assigned to the < codepoint >. The command creates a DSCP |
| policy by assigning an 802.1p priority to a specific DSCP. |
| When the switch applies this priority to a packet, the priority |
| determines the packet’s queue in the outbound port to which |
| it is sent. If the packet leaves the switch on a tagged port, it |
| carries the 802.1p priority with it to the next downstream |
| device. (Default: For most codepoints, |
| |
| Syntax: interface < |
| Assigns a DSCP policy to packets from the specified source- |
| port(s), and overwrites the DSCP in these packets with the |
| assigned < codepoint > value. This policy includes an 802.1p |
| priority and determines the packet’s queue in the outbound |
| port to which it is sent. If the packet leaves the switch on a |
| tagged port, it carries the 802.1p priority with it to the next |
| downstream device. (Default: |
| Syntax: no interface [e] < |
| Removes QoS classifier for the specified |
| Syntax: show qos |
| Displays a listing of all |
| in the |