Port Aggregation Flashcards
In LACP, how does the Active mode operate?
The Active mode enables LACP unconditionally. The port sends LACP requests to connected ports.
In LACP, how does the Passive mode operate?
The Passive mode enables LACP only if an LACP device is detected. The port waits for LACP requests and responds to requests for LACP negotiation,
How do you enable LACP?
You can enable LACP by using the command “channel-group 1 mode (active | passive) on the interface configuration.
In PAgP, how does the Desirable mode operate?
The Desirable mode enables PAgP unconditionally. The port starts actively sending negotiation messages to other ports.
In PAgP, how does the Auto mode operate?
The Auto mode enables PAgP only if a PAgP device is detected. The port waits for requests and responds to requests for PAgP negotiation.
In PAgP, how does the Silent mode operate?
If a switch is connected to a partner that is PAgP-capable, you can configure the switch port for non-silent operation by using the non-silent keyword. If you do not specify non-silent with the auto or desirable mode, silent mode is assumed. Using non-silent mode results in faster establishment of the EtherChannel when connecting to another PAgP neighbor.
How do you enable PAgP?
You can enable PAgP by using the command “channel-group 1 mode (auto | desirable) on the interface configuration.
How do you enable Static Etherchannel and why would you use it?
You can enable Static Etherchannel by using the “mode on” command in interface configuration and you might use it if the remote device does not speak LACP or PAgP.
What does the LACP system priority identify?
The LACP system priority identifies which switch is the master switch for a port channel. The master switch on a port channel is responsible for choosing which member interfaces are active in a port channel when there are more member interfaces than the maximum number of member interfaces associated with a port-channel interface.
What does the LACP interface priority do?
LACP interface priority enables the master switch to choose which member interfaces are active in a port channel when there are more member interfaces than the maximum number of member interfaces for a port channel. A port with a lower port priority is preferred. The interface configuration command lacp port-priority priority sets the interface priority.
