D-Link DES-3226L, Cli Command Reference

Page: 57 / 128

Switching Commands 57
no switchport protected
Use this command to configure a port as unprotected. The
groupid
parameter identifies the set of
protected ports to which this interface is assigned. You can only configure an interface as protected in
one group. The
name
parameter is an optional name associated with this group. The name can be up to
32 alphanumeric characters long, including blanks.
Format
no switchport protected [<groupid>] [name <name>]
Mode
Interface Config
show switchport protected
This command displays the status of all the interfaces, including protected and unprotected interfaces.
Format
show switchport protected [<groupid>]
Mode
User EXEC
Privileged EXEC
Group ID
The number that identifies the protected port group.
Name
An optional name of the protected port group. The name can be up to 32
alphanumeric characters long, including blanks. The default is blank.
List of Physical Ports
List of ports, which are configured as protected for the group identi-
fied with
<groupid>
. If no port is configured as protected for this group, this
field is blank.
Link Aggregation/Port-Channel (802.3AD) Commands
This section describes the commands you use to configure link aggregation groups (LAG), which are
also called port-channels. Link aggregation allows you to combine multiple full duplex Ethernet links
into a single logical link. Network devices treat the aggregation as if it were a single link, which
increases fault tolerance and provides load sharing. The LAG feature initially load shares traffic based
upon the source and destination MAC address.
The ports you combine to form a LAG must have equal port speed capabilities. In other words, each
LAG must use all Fast Ethernet (10/100) ports or all Gigabit Ethernet (10/100/1000) ports, but not both,
regardless of what you set the actual link speed to be.
You can create two LAGs on the switch if you use Fast Ethernet ports. You can create one LAG if you
use Gigabit Ethernet ports.
Note: Assign the LAG VLAN membership after you create a LAG. If you do not assign
VLAN membership, the LAG might become a member of the management VLAN
which can result in learning and switching issues.
Note: The D-Link DES-3226L switch does not support spanning tree protocol (STP) on
dynamic LAGs. If you want to run STP on a LAG, you must configure static capabil-
ity on the LAG. For more information, see “port-channel staticcapability” on page 58.