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xStack® DES-3200 Series Layer 2 Ethernet Managed Switch CLI Reference Guide
133
config 802.1p user_priority
Purpose
Used to map the 802.1p user priority of an incoming packet to one of the four hardware
queues available on the Switch.
Syntax
config 802.1p user_priority <priority 0-7> <class_id 0-3>
Description
This command is used to configure the way the Switch will map an incoming packet, based
on its 802.1p user priority, to one of the four available hardware priority queues on the
Switch.
The Switch’s default is to map the following incoming 802.1p user priority values to the four
hardware priority queues:
802.1p Hardware Queue Remark
0 1 Mid-low
1 0 Lowest
2 0 Lowest
3 1 Mid-low
4 2 Mid-high
5 2 Mid-high
6 3 Highest
7 3 Highest.
This mapping scheme is based upon recommendations contained in IEEE 802.1D.
Change this mapping by specifying the 802.1p user priority users want to map to the
<class_id 0-3> (the number of the hardware queue).
<priority 0-7> − The 802.1p user priority to associate with the class_id (the number of the
hardware queue).
<class_id 0-3> − The number of the Switch’s hardware priority queue. The Switch has four
hardware priority queues available. They are numbered between 0 (the lowest priority)
and 3 (the highest priority).
Restrictions
Only Administrator-level users can issue this command.
Example usage:
To configure 802.1p user priority on the Switch:
DES-3200-28:4#config 802.1p user_priority 1 3
Command: config 802.1p user_priority 1 3
Success.
DES-3200-28:4#