Configuring Tos-Based Qos; Enabling Tos-Based Qos; Specifying Trust Level - Dell PowerConnect B-RX Configuration Manual

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Configuring ToS-based QoS

The <num> parameter can be from 0 – 7 and specifies the priority level equivalent to one of the
four QoS queues.
Assigning static MAC address entries to priority queues
By default, all MAC address entries are in the best effort queue. When you configure a static MAC
entry, you can assign the entry to a higher QoS level using the following method. The priority applies
to packets sourced by this MAC address.
To configure a static MAC entry and assign the entry to the premium queue on a Chassis device,
enter commands such as the following.
BigIron RX(config)# vlan 9
BigIron RX(config-vlan-9)# static-mac-address 1145.1163.67FF ethernet 1/1
priority 7
Syntax: [no] static-mac-address <mac-addr> ethernet <slot>/<portnum> [priority <num>]
The <num> parameter can be from 0 – 7 and specifies the priority level1 equivalent to one of the
four QoS queues.
Configuring ToS-based QoS
To configure ToS-based QoS, perform the following tasks:
•

Enabling ToS-based QoS

To enable ToS-based QoS on an interface, enter the following command at the configuration level
for the interface.
BigIron RX(config-if-e1000-1/1)# qos-tos
Syntax: [no] qos-tos

Specifying trust level

If a packet arrives on the interface with either a COS, DSCP, or COS and DSCP priority level, the
trust level specifies which of these priorities you want to accept. If you disable trust level, the
priority will default to a criteria other than the COS or DSCP priority.
To set the trust level for an interface to dscp, enter the following command at the configuration
level for the interface.
BigIron RX(config-if-e1000-1/1)# qos-tos trust dscp
Syntax: [no] qos-tos trust cos | dscp
470
[host-type | router-type | fixed-host]
Enable ToS-based QoS on an interface. Once you enable the feature on an individual interface,
you can configure the trust level and marking for traffic that is received on that interface as
described:
•
Specify the trust level for packets received on the interface.
•
Enable marking of packets received on the interface.
BigIron RX Series Configuration Guide
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