Ip Arp Inspection Log-Buffer - Cisco 4500M Command Reference Manual

Chapter2 Cisco IOS Commands for the Catalyst 4500 Series Switches

ip arp inspection log-buffer

To configure parameters that are associated with the logging buffer, use the ip arp inspection log-buffer
command. Use the no form of this command to disable the parameters.
Syntax Description
entries number
logs number
interval seconds
Defaults
When dynamic ARP inspection is enabled, denied, or dropped, ARP packets are logged.
The number of entries is set to 32.
The number of logging entries is limited to 5 per second.
The interval is set to 1.
Command Modes
Configuration
Command History Release
12.1(19)EW
Usage Guidelines
The first dropped packet of a given flow is logged immediately. Subsequent packets for the same flow
are registered but not logged immediately. Registering these packets is done in a log buffer that is shared
by all VLANs. Entries from this buffer are logged on a rate-controlled basis.
Examples
This example shows how to configure the logging buffer to hold up to 45 entries:
Switch# config terminal
Enter configuration commands, one per line.
Switch(config)# ip arp inspection log-buffer entries 45
Switch(config)# end
Switch# show ip arp inspection log
Total Log Buffer Size : 45
Syslog rate : 5 entries per 1 seconds.
No entries in log buffer.
Switch#
78-16201-01
ip arp inspection log-buffer {entries number | logs number interval seconds}
no ip arp inspection log-buffer {entries | logs}
The number of entries from the logging buffer. The range is 0 to 1024.
The number of entries to be logged in an interval. The range is 0 to 1024. A 0
value indicates that entries should not be logged out of this buffer.
The logging rate. The range is 0 to 86400 (1 day). A 0 value represents an
immediate log.
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
End with CNTL/Z.
ip arp inspection log-buffer
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