Load Balancing Using Etherchannels; Cisco Nexus 3000 Series Nx-Os Layer 2 Switching Configuration Guide, Release 5.0(3)U1(1 - Cisco Nexus 3000 series Configuration Manual
Nx-os layer 2
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Also See for Nexus 3000 series:
- Command reference manual (356 pages) ,
- Configuration manual (338 pages) ,
- Installation manual (112 pages)
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Load Balancing Using EtherChannels
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 and the source and destination
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
• Source TCP/UDP port number
• Source and destination TCP/UDP port number
Table 4: EtherChannel Load-Balancing Criteria
Configuration
Destination MAC
Source MAC
Source and destination
MAC
Destination IP
Source IP
Cisco Nexus 3000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.0(3)U1(1)
58
IP addresses.
IP addresses.
Note
You have the option to include the source and destination port number for the Layer 4
frame.
Layer 2 Criteria
Destination MAC
Source MAC
Source and destination
MAC
Destination MAC
Source MAC
Layer 3 Criteria
Layer 4 Criteria
Destination MAC
Destination MAC
Source MAC
Source MAC
Source and destination
Source and destination
MAC
MAC
Destination MAC,
Destination MAC,
destination IP
destination IP
Source MAC, source IP
Source MAC, source IP
Configuring EtherChannels
- Quick Links:
- Vlans
- About Mtu Configuration
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