Command Line Reference Guide

1116 | Quality of Service (QoS)
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If you receive the error message:
%Error: Specified VLANs overlap with existing config.
after configuring VLANs in the rate police command, check to see if the same VLANs are used in rate
limit command on other interfaces. To clear the problem, remove the rate limit configuration(s), and
re-configure the rate police command. After the rate police command is configured, return to the other
interfaces and re-apply the rate limit configuration.
rate police
c e s
Police the incoming traffic rate on the selected interface.
Syntax
rate police [kbps] committed-rate [burst-KB] [peak [kbps] peak-rate [burst-KB]] [vlan vlan-id]
Parameters
Defaults
Granularity for committed-rate and peak-rate is Mbps unless the kbps option is used.
Command Mode
INTERFACE
Command
History
Usage
Information
C-Series and S-Series
On one interface, you can configure the rate police command for a VLAN or you can configure the rate
police command for an interface. For each physical interface, you can configure three rate police
commands specifying different VLANS.
kbps
Enter this keyword to specify the rate limit in Kilobits per second (Kbps). On C-Series and
S-Series make the following value a multiple of 64. On the E-Series, Dell Force10
recommends using a value greater than or equal to 512 as lower values does not yield
accurate results. The default granularity is Megabits per second (Mbps).
Range: 0-10000000
committed-rate
Enter a number as the bandwidth in Mbps.
Range: 0 to 10000
burst-KB
(OPTIONAL) Enter a number as the burst size in KB.
Range: 16 to 200000
Default: 50
peak peak-rate (OPTIONAL) Enter the keyword peak followed by a number to specify the peak rate in Mbps.
Range: 0 to 10000
vlan vlan-id
(OPTIONAL) Enter the keyword vlan followed by a VLAN ID to police traffic to those
specific VLANs.
Range: 1 to 4094
Version 8.2.1.0
Added
kbps option on C-Series, E-Series, and Series.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.1.1.1 Introduced on E-Series
Note: Per Port rate limit and rate police is supported for Layer 2 tagged and untagged switched traffic
and for Layer 3 traffic. Per VLAN rate limit and rate police is supported on only tagged ports with Layer
2 switched traffic.