Users Guide

Version Description
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
pre- 7.7.1.0 Introduced.
Related
Commands
● policy-map-input — creates an input policy map.
● policy-map-output — creates an output policy map.
● qos-policy-input — creates an input QoS-policy on the router.
● qos-policy-output — creates an output QoS-policy on the router.
● wred-profile — creates a WRED profile.
dynamic-buffer-limit
Assign the number of bytes in KB in the dynamic buffer pool for a particular class of traffic .
Syntax
dynamic-buffer-limit buffer-value
To remove the dynamic buffer limit, use the no dynamic-buffer-limit command.
Parameters
buffer-value Enter the buffer value in kilobytes. The range is from 0 to 12288.
Defaults none
Command Modes CONFIGURATION (conf-qos-policy-out)
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
Networking OS Command Line Reference Guide.
Version Description
9.10(0.0) Introduced on the S6000.
Usage
Information
The dynamic-buffer-limit command restricts the amount of dynamic memory that a particular
class of traffic can use. If the traffic consumes more than the configured buffer limit, the system drops
the traffic during congestion, providing a predictable latency.
Example
Dell (conf)# qos-policy-output VOIP
Dell (conf-qos-policy-out)#bandwidth-percentage 1
Dell (conf-qos-policy-out)#rate-shape 10000 committed 1000
Dell (conf-qos-policy-out)#dynamic-buffer-limit 10000
match ip access-group
Configure match criteria for a class map, based on the access control list (ACL).
NOTE:
IPv6 class-maps and IP-any class-maps do not match. This condition is true for IPv6 and IP-any class-maps on both
ACLs as well as VLANs.
S6000
Syntax
match ip access-group access-group-name [set-ip-dscp value | set-color
value]
To remove ACL match criteria from a class map, use the no match ip access-group access-
group-name [set-ip-dscp value | set-color value] command.
Quality of Service (QoS) 1057