Cisco nexus 5000 series Cli Configuration Manual page 187

Chapter 1 Configuring Port Channels
S e n d f e e d b a c k t o n x 5 0 0 0 - d o c f e e d b a c k @ c i s c o . c o m
LACP Overview
You must enable LACP before the feature functions.
Note
Figure 1-1
well as function as individual links.
Figure 1-1
Channel group1
With LACP, you can bundle up to eight interfaces in a channel group.
When you delete the port channel, Cisco NX-OS automatically deletes the associated channel group. All
Note
member interfaces revert to their previous configuration.
You cannot disable LACP while any LACP configurations are present.
LACP ID Parameters
LACP uses the following parameters:
•
•
OL-16597-01
shows how individual links can be combined into LACP port channels and channel groups as
Individual Links Combined into a Port Channel
po1
1/1
1/2
1/3
1/4
Switch
Port channel
A
Individual link
1/5
LACP system priority—Each system that runs LACP has an LACP system priority value. You can
accept the default value of 32768 for this parameter, or you can configure a value between 1 and
65535. LACP uses the system priority with the MAC address to form the system ID and also uses
the system priority during negotiation with other devices. A higher system priority value means a
lower priority.
The LACP system ID is the combination of the LACP system priority value and the MAC
Note
address.
LACP port priority—Each port configured to use LACP has an LACP port priority. You can accept
the default value of 32768 for the LACP port priority, or you can configure a value between 1 and
65535. LACP uses the port priority with the port number to form the port identifier. LACP uses the
port priority to decide which ports should be put in standby mode when there is a limitation that
prevents all compatible ports from aggregating and which ports should be put into active mode. A
Channel group 2
po2
2/1
2/ 2
2/ 3
2/ 4
Switch
B
2/5
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Information About Port Channels
1-5