DES-1228/ME Layer 2 Metro Ethernet Switch CLI Reference Manual
106
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 allows users 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 0-3>
(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-1228/ME:4# config 802.1p user_priority 1 3
Command: config 802.1p user_priority 1 3
Success.
DES-1228/ME:4#
show 802.1p user_priority
Purpose
Used to display the current mapping between an incoming packet’s 802.1p priority value
and one of the Switch’s four hardware priority queues.
Syntax
show 802.1p user_priority
Description
The
show 802.1p user_priority
command displays the current mapping of an incoming
packet’s 802.1p priority value to one of the Switch’s four hardware priority queues.
Parameters
None.
Restrictions
None.
Example usage:
To show 802.1p user priority:
DES-1228/ME:4# show 802.1p user_priority
