Dell FCX624-S Laptop User Manual


  Open as PDF
of 1494
 
PowerConnect B-Series FCX Configuration Guide 421
53-1002266-01
Displaying and determining the status of aggregate links
12
PowerConnect(config-mif-1/1-1/4)#interface ethernet 3/5 to 3/8
PowerConnect(config-mif-3/5-3/8)#link-aggregate off
PowerConnect(config-mif-3/5-3/8)#link-aggregate configure key 10000
PowerConnect(config-mif-3/5-3/8)#link-aggregate active
These commands change the key for ports 1/1 – 1/4 and 3/5 – 3/8 to 10000. Since all ports in
an aggregate link must have the same key, the command in this example enables ports 1/1 – 1/4
and 3/5 – 3/8 to form a multi-slot aggregate link.
Syntax: [no] link-aggregate configure [system-priority <num>] | [port-priority <num>] | [key
<num>]
The system-priority <num> parameter specifies the Dell PowerConnect device link aggregation
priority. A higher value indicates a lower priority. You can specify a priority from 0 – 65535. The
default is 1.
The port-priority <num> parameter specifies an individual port priority within the port group. A
higher value indicates a lower priority. You can specify a priority from 0 – 65535. The default is 1.
The key <num> parameter identifies the group of ports that are eligible to be aggregated into a
trunk group. The software automatically assigns a key to each group of ports. The software assigns
the keys in ascending numerical order, beginning with 0. You can change a port group key to a
value from 10000 – 65535.
Configuring port timeout
You can control the time it takes to remove ports from a trunk with link aggregation enabled by
configuring the link aggregated port with a “short” timeout mode. Once a port is configured with a
timeout mode, it will remain in that timeout mode whether it is up or down or whether or not it is
part of a trunk.
All ports in a trunk should have the same timeout mode, which is checked when link aggregation is
enabled on ports.
To configure a port with a short timeout mode, enter a command such as the following.
PowerConnect(config)#interface ethernet8/1
PowerConnect(config-if-e1000-8/1)#link-aggregate configure timeout short
Syntax: [no] link-aggregate configure timeout [short]
If the timeout mode is not configured for a port and link aggregation is enabled, the port starts with
a short timeout mode. Once a trunk is formed, the timeout mode is changed to the long timeout
mode. The value for “long” and “short” is displayed in the output for the show link-aggregate
command.
Displaying and determining the status of aggregate links
The show link-aggregate command provides the ability to view the status of dynamic links. You can
determine the status of ports that are members of an aggregate link, and whether LACPDU
messages are being transmitted between the ports.
The following section provides details about the events that can affect the status of ports in an
aggregate link and the status of LACP messages exchanged between the ports. Later sections
provide instructions for viewing these status reports.