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• Adding a Physical Interface to a Port Channel (mandatory)
• Reassigning an Interface to a New Port Channel (optional)
• Configuring the Minimum Oper Up Links in a Port Channel (optional)
• Adding or Removing a Port Channel from a VLAN (optional)
• Assigning an IP Address to a Port Channel (optional)
• Deleting or Disabling a Port Channel (optional)
• Load Balancing Through Port Channels (optional)
Creating a Port Channel
You can create up to 512 port channels with up to 16 port members per group on the platform.
To configure a port channel, use the following commands.
1. Create a port channel.
CONFIGURATION mode
interface port-channel id-number
2. Ensure that the port channel is active.
INTERFACE PORT-CHANNEL mode
no shutdown
After you enable the port channel, you can place it in Layer 2 or Layer 3 mode. To place the port channel
in Layer 2 mode or configure an IP address to place the port channel in Layer 3 mode, use the
switchport command.
You can configure a port channel as you would a physical interface by enabling or configuring protocols
or assigning access control lists.
Adding a Physical Interface to a Port Channel
The physical interfaces in a port channel can be on any line card in the chassis, but must be the same
physical type.
You can add any physical interface to a port channel if the interface configuration is minimal. You can
configure only the following commands on an interface if it is a member of a port channel:
• description
• shutdown/no shutdown
• mtu
• ip mtu (if the interface is on a Jumbo-enabled by default)
NOTE: A logical port channel interface cannot have flow control. Flow control can only be present
on the physical interfaces if they are part of a port channel.
NOTE: The Z9500 supports jumbo frames by default (the default maximum transmission unit (MTU)
is 9216 bytes). To configure the MTU, use the mtu command from INTERFACE mode.
To view the interface’s configuration, enter INTERFACE mode for that interface and use the show
config command or from EXEC Privilege mode, use the show running-config interface
interface command.
When an interface is added to a port channel, the system recalculates the hash algorithm.
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Interfaces