P
RIORITY
 C
OMMANDS
 (L
AYER
 2)
31-3
(WRR) queuing that specifies a relative weight of each queue. WRR 
uses a predefined relative weight for each queue that determines the 
percentage of service time the switch services each queue before 
moving on to the next queue. This prevents the head-of-line blocking 
that can occur with strict priority queuing. 
Example 
The following example sets the queue mode to strict priority service mode:
Related Commands
queue bandwidth (31-4)
show queue mode (31-7)
switchport priority default
This command sets a priority for incoming untagged frames. Use the no 
form to restore the default value.
Syntax 
switchport priority default default-priority-id
no switchport priority default
default-priority-id - The priority number for untagged ingress traffic. 
The priority is a number from 0 to 7. Seven is the highest priority. 
Default Setting 
The priority is not set, and the default value for untagged frames 
received on the interface is zero.
Command Mode 
Interface Configuration (Ethernet, Port Channel)
Command Usage 
• The precedence for priority mapping is IP Port, IP Precedence or IP 
DSCP, and default switchport priority. 
• The default priority applies for an untagged frame received on a port 
set to accept all frame types (i.e, receives both untagged and tagged 
Console(config)#queue mode strict
Console(config)#