Users Guide

match the interface speed that the first channel member sets. That first interface may be either the interface
that is physically brought up first or was physically operating when interfaces were added to the port channel.
For example, if the first operational interface in the port channel is a Tengigabit Ethernet interface, all
interfaces at 10000 Mbps are kept up, and all other interfaces that are not set to 10G speed or auto negotiate
are disabled.
Dell Networking OS brings up the interfaces that are set to auto negotiate so that their speed is identical to
the speed of the first channel member in the port channel.
Interfaces in Port Channels
When interfaces are added to a port channel, the interfaces must share a common speed. When interfaces
have a configured speed different from the port channel speed, the software disables those interfaces.
The common speed is determined when the port channel is first enabled. Then, the software checks the first
interface listed in the port channel configuration. If you enabled that interface, its speed configuration
becomes the common speed of the port channel. If the other interfaces configured in that port channel are
configured with a different speed, Dell Networking OS disables them.
Port channels can contain a mix of 1G/10G. The interface speed that the port channel uses is determined by
the first port channel member that is physically up. Dell Networking OS disables the interfaces that do not
match the interface speed that the first channel member sets. That first interface may be either the interface
that is physically brought up first or was physically operating when interfaces were added to the port channel.
For example, if the first operational interface in the port channel is a Tengigabit Ethernet interface, all
interfaces at 10000 Mbps are kept up, and all other interfaces that are not set to 10G speed or auto negotiate
are disabled.
Dell Networking OS brings up the interfaces that are set to auto negotiate so that their speed is identical to
the speed of the first channel member in the port channel.
Configuration Tasks for Port Channel Interfaces
To configure a port channel (LAG), use the commands similar to those found in physical interfaces. By default,
no port channels are configured in the startup configuration.
These are the mandatory and optional configuration tasks:
• Creating a Port Channel (mandatory)
• 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)
Interfaces 389