Qtech QSW-3300-28F-AC-AC [411/693] Addport

Qtech QSW-3300-28F-AC-AC [411/693] Addport
Port-Channel/LAG (802.3ad) Commands
Software User Manual
CLI Command Reference
Page 428
Port-Channel/LAG (802.3ad) Commands
This section describes the commands you use to configure port-channels, which is defined in the 802.3ad
specification, and that are also known as link aggregation groups (LAGs). 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. Assign the port-channel (LAG) VLAN
membership after you create a port-channel. If you do not assign VLAN membership, the port-channel might
become a member of the management VLAN which can result in learning and switching issues.
A port-channel (LAG) interface can be either static or dynamic, but not both. All members of a port channel must
participate in the same protocols.) A static port-channel interface does not require a partner system to be able
to aggregate its member ports.
port-channel
This command configures a new port-channel (LAG) and generates a logical unit/slot/port number for the
port-channel. The
name field is a character string which allows the dash “-” character as well as alphanumeric
characters. Use the
show port channel command to display the unit/slot/port number for the logical interface.
Instead of
unit/slot/port
,
lag lag-intf-num can be used as an alternate way to specify the LAG interface. lag
lag-intf-num
can also be used to specify the LAG interface where lag-intf-num
is the LAG port number.
addport
This command adds one port to the port-channel (LAG). The first interface is a logical unit/slot/port number
of a configured port-channel. You can add a range of ports by specifying the port range when you enter Interface
Config mode (for example:
interface 1/0/1-1/0/4. Instead of unit/slot/port
,
lag lag-intf-num can be used
as an alternate way to specify the LAG interface.
lag lag-intf-num
can also be used to specify the LAG
interface where
lag-intf-num
is the LAG port number.
Note: If you configure the maximum number of dynamic port-channels (LAGs) that your platform
supports, additional port-channels that you configure are automatically static.
Note: Before you include a port in a port-channel, set the port physical mode. For more information,
see “speed” on page 344.
Format
port-channel name
Mode Global Config
Note: Before adding a port to a port-channel, set the physical mode of the port. For more information,
see “speed” on page 344.
Format
addport logical unit/slot/port

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