Command Line Reference Guide

Interfaces | 559
Parameters
Defaults
Enabled
Command Modes
INTERFACE
Command
History
Usage
Information
When you configure keepalive, the system sends a self-addressed packet out of the configured
interface to verify that the far end of a WAN link is up. When you configure no keepalive, the system
does not send keepalive packets and so the local end of a WAN link remains up even if the remote end
is down.
link debounce-timer
e
Assign the debounce time for link change notification on this interface.
Syntax
link debounce [milliseconds]
Parameters
Command Modes
INTERFACE
Command
History
Usage
Information
Changes do not affect any ongoing debounces. The timer changes take affect from the next debounce
onward.
monitor
c e s
Monitor counters on a single interface or all interfaces on a line card. The screen is refreshed every 5
seconds and the CLI prompt disappears.
Syntax
monitor interface [interface]
To disable monitoring and return to the CLI prompt, press the q key.
seconds
(OPTIONAL) For SONET interfaces with PPP encapsulation enabled, enter the number of
seconds between keepalive packets.
Range: 0 to 23767
Default: 10 seconds
Version 8.1.1.2 Introduced on E-Series ExaScale
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.2.1.0 Introduced for E-Series
milliseconds
Enter the time to delay link status change notification on this interface.
Range: 100-5000 ms
• Default for copper is 3100 ms
• Default for fiber is 100 ms
Version 8.2.1.0 Introduced on E-Series ExaScale
Version 7.6.1.0 Introduced on E-Series