Dell PowerEdge VRTX - Manual (Page 431)

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FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\Dell Plasma\User
Guide\Plasma_UGQoS.fm
D E L L CO N F I D E N T I A L – P R E L I MI N A RY 4/ 1 8 /1 3 - F O R PR O O F O N LY
By changing the DSCP to Queue mapping, the Queue schedule method, and
bandwidth allocation, it is possible to achieve improved quality of service in a
network.
The DSCP to Queue mapping is applicable to IP packets when:
• The switch is in Basic mode and DSCP is the trusted mode
• The switch is in Advanced mode and the packets belongs to flows that are
DSCP trusted
Non-IP packets are always classified to the best-effort queue.
To map DSCP to queues:
1 Click Quality of Service > General > DSCP to Queue in the tree view to
display the DSCP to Queue page.
The DSCP values in the incoming packet and its associated queues are
displayed.
2 Enter the fields:
– DSCP In — The values of the DSCP field in the incoming packet.
– Queue — The queue to which packets with the specific DSCP value is
assigned. The values are 1-4, where 1 is the lowest value, and 4 is the
highest.
Mapping DSCP Values to Queues Using CLI Commands
The following table summarizes the CLI commands for configuring fields in
the DSCP to Queue page.
The following is an example of the CLI command:
Table 19-6. DSCP to Queue CLI Commands
CLI Command Description
qos map dscp-queue dscp-list to
queue-id
no qos map dscp-queue [dscp-
list]
Modifies the DSCP to queue
mapping.
Use the no form of this command to
restore the default configuration.
console(config)# qos map dscp-queue 33 40 41 to 1