Configuring Port Channels; Creating A Port Channel - Cisco AJ732A - MDS 9134 Fabric Switch Configuration Manual

Chapter 11

Configuring Port Channels

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LACP Marker Responders
Using port channels, 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 Port Channels Differences
Table 11-3
and static port channels.
Table 11-3
Configurations
Protocol applied
Channel mode of links
Maximum number of links
in channel
Configuring Port Channels
You can configure multiple port channels on a device.
This section includes the following topics:
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Creating a Port Channel

You can create a port channel before creating a channel group. Cisco NX-OS automatically creates the
associated channel group.
OL-16597-01
A port in passive mode cannot form a port channel with another port that is also in passive mode
because neither port will initiate negotiation.
A port in on mode is not running LACP.
provides a brief summary of major differences between port channels with LACP enabled
Port Channels with LACP Enabled and Static Port Channels
Creating a Port Channel, page 11-7
Adding a Port to a Port Channel, page 11-8
Configuring Load Balancing Using Port Channels, 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
Port Channels with LACP Enabled
Enable globally.
Can be either:
• Active
• Passive
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Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Configuring Port Channels
Static Port Channels
Not applicable.
Can only be On.
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11-7