Load Balancing Using Etherchannels - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual
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Information About EtherChannels
Use the show port-channel compatibility-parameters command to see the full list of compatibility checks
that Cisco NX-OS uses.
You can only add interfaces configured with the channel mode set to on to static EtherChannels. You can also
only add interfaces configured with the channel mode as active or passive to EtherChannels that are running
LACP. You can configure these attributes on an individual member port.
When the interface joins an EtherChannel, the following individual parameters are replaced with the values
on the EtherChannel:
• Bandwidth
• MAC address
• Spanning Tree Protocol
The following interface parameters remain unaffected when the interface joins an EtherChannel:
• Description
• CDP
• LACP port priority
• Debounce
Related Topics
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Load Balancing Using EtherChannels
Cisco NX-OS load balances traffic across all operational interfaces in an EtherChannel by reducing part of
the binary pattern formed from the addresses in the frame to a numerical value that selects one of the links in
the channel. EtherChannels provide load balancing by default and the basic configuration uses the following
criteria to select the link:
• For a Layer 2 frame, it uses the source and destination MAC addresses.
• For a Layer 3 frame, it uses the source and destination MAC addresses and the source and destination
• For a Layer 4 frame, it uses the source and destination MAC addresses, the source and destination IP
You can configure the switch to use one of the following methods to load balance across the EtherChannel:
• Destination MAC address
• Source MAC address
• Source and destination MAC address
• Destination IP address
• Source IP address
• Source and destination IP address
• Destination TCP/UDP port number
OL-16597-01
Channel Modes, page 116
IP addresses.
addresses, and the source and destination port number.
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Load Balancing Using EtherChannels
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