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Zorluk: OrtaLayer 2 and Layer 3 EtherChannel (LACP)

A network administrator needs to configure a routed (Layer 3) EtherChannel bundle (Port-channel 10) on a Cisco switch using Link Aggregation Control Protocol (LACP) active mode across physical interfaces GigabitEthernet 0/1 and GigabitEthernet 0/2. What is the correct sequence of CLI steps to complete this configuration?

  1. 1Select the physical member interfaces using the command `interface range GigabitEthernet0/1 - 2`.
  2. 2Convert the physical member interfaces to Layer 3 routed ports using the command `no switchport`.
  3. 3Assign the physical interfaces to the EtherChannel group in active mode using `channel-group 10 mode active`.
  4. 4Enter interface configuration mode for the logical port-channel using `interface Port-channel 10`.
  5. 5Ensure Layer 3 operation on the logical interface using `no switchport` and assign an IP address using `ip address 10.1.1.1 255.255.255.252`.

Cevap

The correct configuration order requires first selecting the physical member interfaces, disabling Layer 2 switching on them using 'no switchport', adding them to channel-group 10 with LACP active mode, navigating into interface Port-channel 10 mode, and finally ensuring Layer 3 operation with an IP address assigned to the logical interface.
To build a Layer 3 EtherChannel using LACP, an engineer must first select physical member ports, convert them into routed ports with 'no switchport', add them to the channel group using 'channel-group 10 mode active', navigate to the logical 'interface Port-channel 10', and assign the IP address to the logical port-channel interface.

Adım Adım Çözüm

1
Select physical member links
Enters interface range configuration mode for GigabitEthernet 0/1 and 0/2.
Changes must be applied to both physical candidate interfaces simultaneously.
2
Disable switchport mode on member links
Converts physical member interfaces from Layer 2 switchports to Layer 3 routed interfaces.
A Layer 3 EtherChannel requires member interfaces to be configured with 'no switchport' prior to bundle creation.
3
Bind member interfaces to LACP channel group
Configures LACP active mode and creates logical interface Port-channel 10.
The 'mode active' keyword enables LACP active negotiation.
4
Select logical Port-channel interface
Enters interface configuration mode for interface Port-channel 10.
Global network addressing must be applied to the bundle interface, not physical member links.
5
Configure IP address on logical interface
Disables switchport mode on the logical port-channel (if needed) and assigns the IPv4 address.
IP addresses in a Layer 3 EtherChannel reside on the logical Port-channel interface itself.

Anahtar Kavram

Layer 3 LACP EtherChannel CLI configuration order
Tahmini Süre:1m 30s
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