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Version Description
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.5.1.0 Expanded the command to permit configuration on port
channels.
6.1.1.1 Introduced on the E-Series.
Usage
Information
To honor all incoming 802.1p markings on incoming switched traffic on the
interface, enter this command. By default, this facility is not enabled (that is, the
802.1p markings on incoming traffic are not honored).
You can apply this command 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.
• All dot1p traffic is mapped to Queue 0 unless you enable the service-class
dynamic dot1p
command on an interface or globally.
• Layer 2 or Layer 3 service policies supersede dot1p service classes.
service-class wred backplane
After you create a WRED profile with ECN functionality, specify per-queue granularity for backplane ports
and include the WRED profile in a service class. Using this command, you can enable or disable queue-
specific settings and specify minimum and maximum buffer thresholds in the WRED profile applied to
each packet color-code. Also, you can specify the maximum drop rate percentage for yellow and green
profiles. The per-queue profile configured is applied to all the backplane ports.
Z9500
Syntax
[no] service-class wred {green | weight | yellow} {[queue0
number/string] || [queue1 number/string] || [queue2 number/
string] || [queue3 number/string] || [queue4 number/string] ||
[queue5 number/string] || [queue6 number/string] || [queue7
number/string]} backplane
Parameters
service-class Define the mapping between the service class and policy-
based QoS or routing.
wred Specify WRED curve parameters for a queue
green Specify green (low) drop precedence to a queue.
weight Specify a weight factor to a queue.
yellow Specify yellow (medium) drop precedence to a queue.
queue 0 to
queue 7
Specify the queue number to which the WRED parameters
apply.
Quality of Service (QoS)
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