Users Guide

Layer 2 Switching Commands 629
Syntax
keepalive [ period [ count ] ]
no keepalive
• period – Configures the interval for the transmission of keepalive packets.
Default: 10 seconds
• count – Configures the number of consecutive CTP packets addressed to
and received by the local switch before the interface is error disabled.
Default: 3 packets.
Default Configuration
Loop protection is disabled globally by default.
The default period is 10 seconds.
The default count is 3 packets.
Command Mode
Global Configuration mode
User Guidelines
Loop protect must be enabled individually on an Ethernet interface as well as
globally.
If only the period parameter is specified, the count parameter remains
unchanged.
Loop protection may only be enabled on Ethernet interfaces, not on port
channels or any virtual interfaces.
Command History
Implemented in version 6.3.0.1 firmware.
Example
The following example configures the CTP transmit interval to transmit CTP
packets every 5 seconds.
console(config)#keepalive 5