Cisco N5010P-N2K-BE, Software Configuration Manual

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S e n d f e e d b a c k t o n x 5 0 0 0 - d o c f e e d b a c k @ c i s c o . c o m
11-7
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
Chapter 11 Configuring EtherChannels
Configuring EtherChannels
•
A port in passive mode cannot form an EtherChannel with another port that is also in passive mode
because neither port will initiate negotiation.
• A port in on mode is not running LACP.
LACP Marker Responders
Using EtherChannels, data traffic may be dynamically redistributed due to either a link failure or load
balancing. LACP uses the Marker Protocol to ensure that frames are not duplicated or reordered because
of this redistribution. Cisco NX-OS supports only Marker Responders.
LACP-Enabled and Static EtherChannels Differences
Table 11-3 provides a brief summary of major differences between EtherChannels with LACP enabled
and static EtherChannels.
Configuring EtherChannels
You can configure multiple EtherChannels on a device.
This section includes the following topics:
• Creating an EtherChannel, page 11-7
•
Adding a Port to an EtherChannel, page 11-8
• Configuring Load Balancing Using EtherChannels, page 11-9
•
Enabling LACP, page 11-10
• Configuring Port-Channel Port Modes, page 11-10
•
Configuring the LACP System Priority and System ID, page 11-11
• Configuring the LACP Port Priority, page 11-11
Creating an EtherChannel
You can create an EtherChannel before creating a channel group. Cisco NX-OS automatically creates
the associated channel group.
Table 11-3 EtherChannels with LACP Enabled and Static EtherChannels
Configurations EtherChannels with LACP Enabled Static EtherChannels
Protocol applied Enable globally. Not applicable.
Channel mode of links Can be either:
• Active
•
Passive
Can only be On.
Maximum number of links
in channel 8 8