Lacp - Cisco 7206 - VXR Router Configuration Manual

Information About Port Channels
S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m
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Devices that run Cisco IOS were able to optimize the behavior of the member ports ASICs if a failure
Note
of a single member occurred by running the port-channel hash-distribution command. The Cisco
Nexus 7000 Series device performs this optimization by default and does not require or support this
command. Cisco NX-OS does support the customization of the load-balancing criteria on port channels
through the port-channel load-balance command, either for the entire device or on a per-module basis.
See the Cisco Nexus 7000 Series NX-OS Interfaces Command Reference, Release 5.x, for information on
this command.

LACP

LACP allows you to configure up to 16 interfaces into a port channel. A maximum of 8 interfaces can
be active, and a maximum of 8 interfaces can be placed in a standby state on the M Series modules.
Beginning with Cisco NX-OS Release 5.1, you can bundle up to 16 active links into a port channel on
the F Series module.
This section includes the following topics:
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LACP Overview
You must enable LACP before you can use LACP. By default, LACP is disabled.
Note
See the
Beginning in Cisco NX-OS Release 4.2, the system automatically takes a checkpoint before disabling
the feature, and you can roll back to this checkpoint. See the Cisco Nexus 7000 Series NX-OS System
Management Configuration Guide, Release 5.x, for information on rollbacks and checkpoints.
Figure 6-2
well as function as individual links.
Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x
6-8
Multicast traffic without Layer 4 information—Source IP address, destination IP address
Non-IP multicast traffic—Source MAC address, destination MAC address
LACP Overview, page 6-8
Port-Channel Modes, page 6-9
LACP ID Parameters, page 6-10
LACP Marker Responders, page 6-11
LACP-Enabled and Static Port Channels Differences, page 6-11
LACP Compatibility Enhancements, page 6-12
LACP Port-Channel MinLinks and MaxBundle, page 6-12
LACP Offload to Fabric Extenders, page 6-13
LACP Fast Timers, page 6-13
"Enabling LACP" section on page 6-29
shows how individual links can be combined into LACP port channels and channel groups as
Chapter 6
for information on enabling LACP.
Configuring Port Channels
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