Reference Guide

Adjusting the Keepalive Timer
To change the time interval between keepalive messages on the interfaces, use the keepalive
command. The interface sends keepalive messages to itself to test network connectivity on the interface.
To change the default time interval between keepalive messages, use the following command.
• Change the default interval between keepalive messages.
INTERFACE mode
keepalive [seconds]
• View the new setting.
INTERFACE mode
show config
View Advanced Interface Information
The following options have been implemented for the show [ip | running-config] interfaces
commands for (only) linecard interfaces.
When you use the configured keyword, only interfaces that have non-default configurations are
displayed. Dummy linecard interfaces (created with the
linecard command) are treated like any other
physical interface.
Example of show Commands that Use the configured Keyword
Example of the show interfaces switchport Command
The following example lists the possible show commands that have the configured keyword available:
Dell#show interfaces configured
Dell#show interfaces linecard 0 configured
Dell#show interfaces gigabitEthernet 0 configured
Dell#show ip interface configured
Dell#show ip interface linecard 1 configured
Dell#show ip interface gigabitEthernet 1 configured
Dell#show ip interface br configured
Dell#show ip interface br linecard 1 configured
Dell#show ip interface br gigabitEthernet 1 configured
Dell#show running-config interfaces configured
Dell#show running-config interface gigabitEthernet 1 configured
In EXEC mode, the show interfaces switchport command displays only interfaces in Layer 2 mode
and their relevant configuration information. The show interfaces switchport command displays
the interface, whether it supports IEEE 802.1Q tagging or not, and the VLANs to which the interface
belongs.
Dell#show interfaces switchport
Name: GigabitEthernet 13/0
802.1QTagged: True
Vlan membership:
Vlan 2
Name: GigabitEthernet 13/1
802.1QTagged: True
Vlan membership:
Vlan 2
Name: GigabitEthernet 13/2
Interfaces
453