Cisco 300 Series User Manual

DHCP Snooping Commands
OL-32830-01 Command Line Interface Reference Guide 322
13
13.14 ip source-guard tcam retries-freq
Use the ip source-guard tcam retries-freq Global Configuration mode command to
set the frequency of retries for TCAM resources for inactive IP Source Guard
addresses. Use the no form of this command to restore the default configuration.
Syntax
ip source-guard tcam retries-freq {
seconds | never}
no ip source-guard tcam retries-freq
Parameters
• seconds —Specifies the retries frequency in seconds. (Range: 10–600)
• never—Disables automatic searching for TCAM resources.
Default Configuration
The default retries frequency is 60 seconds.
Command Mode
Global Configuration mode
User Guidelines
Since the IP Source Guard uses the Ternary Content Addressable Memory
(TCAM) resources, there may be situations when IP Source Guard addresses are
inactive because of a lack of TCAM resources.
By default, once every minute the software conducts a search for available space
in the TCAM for the inactive IP Source Guard addresses. Use this command to
change the search frequency or to disable automatic retries for TCAM space.
The ip source-guard tcam locate command manually retries locating TCAM
resources for the inactive IP Source Guard addresses.
The show ip source-guard inactive EXEC mode command displays the inactive IP
Source Guard addresses.
Example
The following example sets the frequency of retries for TCAM resources to 2
minutes.

Cisco 300 Series Specifications

General

Model	Cisco 300 Series
Category	Switch
Dimensions	Varies by model
Weight	Varies by model
Power over Ethernet (PoE)	Available on select models
Management	Web-based GUI, SNMP, CLI
VLANs	Up to 256
Security Features	ACLs, 802.1X, Port Security
Humidity	10% to 90% non-condensing
Ports	8, 16, 24, 48