Cisco Systems 3130 User Manual
37-25
Cisco Catalyst Blade Switch 3130 for Dell Software Configuration Guide
OL-13270-01
Chapter 37 Configuring EtherChannels and Link-State Tracking
Configuring Link-State Tracking
•
Do not configure an EtherChannel as a downstream interface.
•
Only interfaces gigabitethernetn/0/1 through gigabitethernetn/0/16, where n is the stack member
number from 1 to 9, can be configured as downstream ports in a specific link-state group.
number from 1 to 9, can be configured as downstream ports in a specific link-state group.
•
Only these interfaces can be configured as upstream ports in a specific link-state group:
–
Gigabitethernetn/0/17 through gigabitethernetn/0/24, where n is the stack member number
from 1 to 9
from 1 to 9
–
Tengigabitethernetn/0/1 through tengigabitethernetn/0/2, where n is the stack member number
from 1 to 9
from 1 to 9
Configuring Link-State Tracking
Beginning in privileged EXEC mode, follow these steps to configure a link-state group and to assign an
interface to a group:
interface to a group:
This example shows how to create a link-state group and to configure the interface:
Switch# configure terminal
Switch(config)# link state track 1
Switch(config)# interface port-channel 1
Switch(config-if)# link state group 1 upstream
Switch(config-if)# end
Note
If the interfaces are part of an EtherChannel, you must specify the port channel name as part of the
link-state group, not the individual port members.
link-state group, not the individual port members.
To disable a link-state group, use the no link state track number global configuration command.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
link state track number
Create a link-state group, and enable link-state tracking. For
nonstackable switches, the group number can be 1 to 2. For
stackable switches, the group number can be 1 to 10. The default
is 1.
nonstackable switches, the group number can be 1 to 2. For
stackable switches, the group number can be 1 to 10. The default
is 1.
Step 3
interface interface-id
Specify a physical interface or range of interfaces to configure,
and enter interface configuration mode.
and enter interface configuration mode.
Valid interfaces include switch ports in access or trunk mode
(IEEE 802.1q), routed ports, or multiple ports bundled into an
EtherChannel interface (static or LACP) that is also in trunk
mode.
(IEEE 802.1q), routed ports, or multiple ports bundled into an
EtherChannel interface (static or LACP) that is also in trunk
mode.
Step 4
link state group [number] {upstream |
downstream}
downstream}
Specify a link-state group, and configure the interface as either
an upstream or downstream interface in the group. For
nonstackable switches, the group number can be 1 to 2. For
stackable switches, the group number can be 1 to 10. The default
is 1.
an upstream or downstream interface in the group. For
nonstackable switches, the group number can be 1 to 2. For
stackable switches, the group number can be 1 to 10. The default
is 1.
Step 5
end
Return to privileged EXEC mode.
Step 6
show running-config
Verify your entries.
Step 7
copy running-config startup-config
(Optional) Save your entries in the configuration file.