Cisco Nexus 5000 Series Switch CLI Software Configuration Guide, NX-OS 4.0(1a)N1 (OL-16597-01, January 2009)

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11-4
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
Chapter 11 Configuring Port Channels
Information About Port Channels
Table 11-1 shows the criteria used for each configuration:
Use the option that provides the balance criteria with the greatest variety in your configuration. For
example, if the traffic on a port channel is going only to a single MAC address and you use the
destination MAC address as the basis of port-channel load balancing, the port channel always chooses
the same link in that port channel; using source addresses or IP addresses might result in better load
balancing.
Understanding LACP
LACP allows you to configure up to 8 interfaces into a port channel.
This section includes the following topics:
• LACP Overview, page 11-5
• LACP ID Parameters, page 11-5
• Port-Channel Modes, page 11-6
• LACP Marker Responders, page 11-7
• LACP-Enabled and Static Port Channels Differences, page 11-7
Table 11-1 Port Channel Load-Balancing Criteria
Configuration Layer 2 Criteria Layer 3 Criteria Layer 4 Criteria
Destination MAC Destination MAC Destination MAC Destination MAC
Source MAC Source MAC Source MAC Source MAC
Source and destination
MAC
Source and destination
MAC
Source and destination
MAC
Source and destination
MAC
Destination IP Destination MAC Destination MAC,
destination IP
Destination MAC,
destination IP
Source IP Source MAC Source MAC, source IP Source MAC, source IP
Source and destination
IP
Source and destination
MAC
Source and destination
MAC, source and
destination IP
Source and destination
MAC, source and
destination IP
Destination TCP/UDP
port
Destination MAC Destination MAC,
destination IP
Destination MAC,
destination IP,
destination port
Source TCP/UDP port Source MAC Source MAC, source IP Source MAC, source IP,
source port
Source and destination
TCP/UDP port
Source and destination
MAC
Source and destination
MAC, source and
destination IP
Source and destination
MAC, source and
destination IP, source
and destination port