Command Line Reference Guide

Quality of Service (QoS) | 813
Command Modes
INTERFACE
CONFIGURATION (C-Series and S-Series only)
Command
History
Usage
Information
Enter this command to honor all incoming 802.1p markings, on incoming switched traffic, on the
interface. By default, this facility is not enabled (that is, the 802.1p markings on incoming traffic are
not honored).
This command can be applied on both physical interfaces and port channels. When you set the
service-class dynamic for a port channel, the physical interfaces assigned to the port channel are
automatically configured; you cannot assign the service-class dynamic command to individual
interfaces in a port channel.
On the C-Series and S-Series all traffic is by default mapped to the same queue, Queue 0. If you honor
dot1p on ingress, then you can create service classes based the queueing strategy using the command
service-class dynamic dot1p from INTERFACE mode. You may apply this queuing strategy to all
interfaces by entering this command from CONFIGURATION mode.
• All dot1p traffic is mapped to Queue 0 unless service-class dynamic dot1p is enabled on an
interface or globally.
• Layer 2 or Layer 3 service policies supercede dot1p service classes.
show interfaces rate
e
Display information of either rate limiting or rate policing on the interface.
Syntax
show interfaces [interface] rate [limit | police]
3311
4422
5522
6633
7733
Table 32-1. Default dot1p to Queue Mapping (continued)
dot1p
E-Series
Queue ID
C-Series
Queue ID
S-Series
Queue ID
Version 8.3.5.0 Introduced on S55
Version 8.2.1.0 Available globally on the C-Series and S-Series so that the configuration applies to all
ports.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
Version 6.5.1.0 Expanded command to permit configuration on port channels
pre-Version 6.1.1.1 Introduced on E-Series