Administrator Guide
Version Description
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.
Syntax
[seq sequence number] 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 [seq sequence number] match ip
access-group access-group-name [set-ip-dscp value | set-color value] command.
Parameters
seq
sequence
number
(OPTIONAL) Enter the keyword seq then the sequence number. The range is from 1 to
100. By default, the sequence number are assigned in multiples of five.
access-group-
name
Enter the ACL name whose contents are used as the match criteria in determining if
packets belong to the class the class-map specifies.
set-ip-dscp
value
(OPTIONAL) Enter the keywords set-ip-dscp then the IP DSCP value. The matched
traffic is marked with the DSCP value. The range is from 0 to 63.
Quality of Service (QoS) 1189