Command Line Interface
9011553-KDU 137 365 Uen D 2006-06-16
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 (that is, receives both untagged and tagged
frames). This priority does not apply to IEEE 802.1Q VLAN tagged
frames. If the incoming frame is an IEEE 802.1Q VLAN tagged frame,
the IEEE 802.1p User Priority bits will be used.
• The ECN330-switch provides eight priority queues for each port. It can
be configured to use strict priority queuing or Weighted Round Robin
using the queue mode command. Inbound frames that do not have
VLAN tags are tagged with the input port’s default ingress user priority,
and then placed in the appropriate priority queue at the output port. The
default priority for all ingress ports is zero. Therefore, any inbound
frames that do not have priority tags will be placed in queue 0 of the
output port. (Note that if the output port is an untagged member of the
associated VLAN, these frames are stripped of all VLAN tags prior to
transmission.)
Example
The following example shows how to set a default priority on port 3 to 5:
Related Commands
show interfaces switchport (section 7.9.13 on page 753)
Console(config)#interface ethernet 1/3
Console (config-if)#switchport priority default 5
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