Understanding Lacp; Lacp Overview - Cisco Nexus 3548 Configuration Manual

Configuring Port Channels
Configuration
Source and destination
IP
Destination TCP/UDP
port
Source TCP/UDP port
Source and destination
TCP/UDP port
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.
The unicast and multicast traffic is load-balanced across port-channel links based on the configured
load-balancing algorithm shown in the show port-channel load-balancing command output.

Understanding LACP

LACP Overview

Note
You must enable the LACP feature before you can configure and use LACP functions.
The following figure shows how individual links can be combined into LACP port channels and channel
groups as well as function as individual links.
Figure 4: Individual Links Combined into a Port Channel
With LACP, just like with static port channels, you can bundle up to 16 interfaces in a channel group.
Layer 2 Criteria Layer 3 Criteria
Source and destination Source and destination
MAC MAC, source and
destination IP
Destination MAC Destination MAC,
destination IP
Source MAC Source MAC, source IP
Source and destination Source and destination
MAC MAC, source and
destination IP
Cisco Nexus 3548 Switch NX-OS Interfaces Configuration Guide, Release 9x
Understanding LACP
Layer 4 Criteria
Source and destination MAC,
source and destination IP
Destination MAC, destination
IP, destination port
Source MAC, source IP,
source port
Source and destination MAC,
source and destination IP,
source and destination port
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