Configuring Port Characteristics 501
Configuring Link Dependencies
Beginning in Privileged EXEC mode, use the following commands to
configure ports that are dependent on the state of other ports.
show interfaces advertise View a summary of the speeds that are advertised on each
port.
show interfaces
description
View configured descriptions for all ports.
show interfaces detail
interface
View detailed information about the specified port.
Command Purpose
configure Enter Global Configuration mode.
link-dependency group
group_id
Enter the link-dependency mode to configure a link-
dependency group.
add
interface
Add member ports to the group.
The
interface
variable includes the interface type and
number, for example gigabitethernet 1/0/3. You can also
add port channels (LAGs) as members by using the
keyword port-channel followed by an ID.
You can also specify a range of interfaces. For example,
interface gigabitethernet 1/0/8-10,1/0/20 configures
interfaces 8, 9, 10 and 20.
depends-on
interface
Specify the port(s) upon which the member ports are
dependent. For information about the
interface
variable,
see the previous command description.
action {down|up} Specifies the action the member ports take when the
dependent link goes down.
•
down
—When the dependent link is down, the group
members are down (the members are up otherwise).
•
up
—When the dependent link goes down, the group
members are brought up (the members are down
otherwise)
Command Purpose
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