Converged Enhanced Ethernet Administrator’s Guide 83
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LACP configuration guidelines and restrictions 8
DRAFT: BROCADE CONFIDENTIAL

LAG distribution process

The LAG aggregator is associated with the collection and distribution of Ethernet frames. The
collection and distribution process is required to guarantee the following:
•Inserting and capturing control PDUs.
•Restricting the traffic of a given conversation to a specific link.
•Load balancing between individual links.
•Handling dynamic changes in LAG membership.
LACP configuration guidelines and restrictions
This section applies to standards-based and Brocade-proprietary LAG configurations except where
specifically noted otherwise.
Follow these LACP configuration guidelines and restrictions when configuring LACP:
•All ports on the Brocade FCoE hardware can operate only in full-duplex mode.
•QoS—In the Fabric OS version 7.0.0 release, QoS commands for a LAG need to be specified on
each LAG member link, instead of on the logical LAG interface (port-group). Additionally, the
QoS commands specified on each LAG member link need to be the same on each link.
•Brocade-proprietary LAGs only—All LAG member links need to be part of the same port-group.
•Switchport interfaces—Interfaces configured as “switchport” interfaces cannot be aggregated
into a LAG. However, a LAG can be configured as a switchport.
Default LACP configuration
Table 19 lists the default LACP configuration.
LACP configuration and management
You need to enter either the copy running-config startup-config command or the write memory
command to save yo ur configur ation chang es to Flash me mory so tha t they are not lost if ther e is a
system reload or power outage.

Enabling LACP on an CEE interface

To add additional interfaces to an existing LAG, repeat this procedure using the same LAG group
number for the new interfaces.
TABLE 19 Default LACP configuration
Parameter Default setting
System priority 32768
Port priority 32768
Timeout Long (standard LAG) and short (Brocade LAG)