Dell PowerConnect B-FCXs, Руководство по настройке

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620 PowerConnect B-Series FCX Configuration Guide
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ACL statistics and rate limit counting
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The software allows you to add a reference to a non-existent TPD in an ACL statement and to bind
that ACL to an interface. The software does not issue a warning or error message for non-existent
TPDs.
Use the no form of the command to delete a traffic policy definition. Note that you cannot delete a
traffic policy definition if it is currently in use on a port. To delete a traffic policy, first unbind the
associated ACL.
The <TPD name> variable is the name of the traffic policy definition. This value can be eight
alphanumeric characters or less.
Enabling ACL statistics with rate limiting traffic policies
The configuration example in the section “Enabling ACL statistics” on page 619 shows how to
enable ACL counting without having to configure parameters for rate limiting. You also can enable
ACL counting while defining a rate limiting traffic policy, as illustrated in the following configuration
examples.
To enable ACL counting while defining traffic policies for fixed rate limiting, enter commands such
as the following at the global CONFIG level of the CLI.
PowerConnect(config)#traffic-policy TPD1 rate-limit fixed 1000 count
PowerConnect(config)#traffic-policy TPD2 rate-limit fixed 10000 exceed-action
drop count
Syntax: [no] traffic-policy <TPD name> rate-limit fixed <cir value> count
Syntax: [no] traffic-policy <TPD name> rate-limit fixed <cir value> exceed-action <action> count
To enable ACL counting while defining traffic policies for adaptive rate limiting, enter commands
such as the following at the global CONFIG level of the CLI.
PowerConnect(config)#traffic-policy TPDA4 rate-limit adaptive cir 10000 cbs 1600
pir 20000 pbs 4000 count
PowerConnect(config)#traffic-policy TPDA5 rate-limit adaptive cir 10000 cbs 1600
pir 20000 pbs 4000 exceed-action permit-at-low-pri count
Syntax: [no] traffic-policy <TPD name> rate-limit adaptive cir <cir value> cbs <cbs value> pir <pir
value> pbs <pbs value> count
Syntax: [no] traffic-policy <TPD name> rate-limit adaptive cir <cir value> cbs <cbs value> pir <pir
value> pbs <pbs value> exceed-action <action> count
Viewing ACL and rate limit counters
When ACL counting is enabled on the Dell device, you can use show commands to display the total
packet count and byte count of the traffic filtered by ACL statements. The output of the show
commands also displays the rate limiting traffic counters, which are automatically enabled for
active rate limiting traffic policies.
Use either the show access-list accounting traffic-policy command or the show statistics
traffic-policy command to display ACL and traffic policy counters. The outputs of these commands
is identical.
The following example shows the output from the show access-list accounting command.