Cisco Catalyst 4500 Series - Configuring MAC Threshold Notification Traps

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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 4 Administering the Switch
Managing the MAC Address Table
Configuring MAC Threshold Notification Traps
When you configure MAC threshold notification, an SNMP notification is generated and sent to the
network management system when a MAC address table (MAT) threshold limit is reached or exceeded.
To configure MAC address threshold notification, perform this task:
Command Purpose
Step 1
configure terminal
Enters global configuration mode.
Step 2
snmp-server host host-addr [traps|informs] {version
{
1|2c|3}} [auth | noauth | priv] community-string
[udp-port port] [notification-type]
Specifies the recipient of the trap message.
• For host-addr, specify the name or address of the
NMS.
• Specify traps (the default) to send SNMP traps
to the host. Specify informs to send SNMP
informs to the host.
• Specify the SNMP version to support. Version 1,
the default, is not available with informs.
• For community-string, specify the string to send
with the notification operation. Though you can
set this string by using the snmp-server host
command, we recommend that you define this
string by using the snmp-server community
command before using the snmp-server host
command.
• For notification-type, use the mac-notification
keyword.
Step 3
snmp-server enable traps mac-notification threshold
Enables the switch to send MAC threshold
notification traps to the NMS.
To disable the switch from sending MAC threshold
notification traps, use the
no snmp-server enable traps mac-notification
threshold global configuration command.
Step 4
mac address-table notification threshold
Enables the MAC address threshold notification
feature.
To disable this feature, use the
no address-table notification threshold global
configuration command.
Step 5
mac address-table notification threshold
[limit percentage] | [interval time]
Enters the threshold value for the MAT usage
monitoring.
• (Optional) For limit percentage, specify the
percentage of the MAT utilization; valid values
are from 1 to 100 percent. Default is 50 percent.
• (Optional) For interval time, specify the time
between notifications; valid values are greater
than or equal to 120 seconds. Default is 120
seconds.