Layer 3 edge aggregate interface configuration example

Network requirements

As shown in Figure 13, a Layer 3 dynamic aggregation group is configured on the device. The server is not configured with dynamic link aggregation.

Configure an edge aggregate interface so that both GigabitEthernet 2/1/1 and GigabitEthernet 2/1/2 can forward traffic to improve link reliability.

Figure 13: Network diagram

Configuration procedure

# Create Layer 3 aggregate interface Route-Aggregation 1, and set the link aggregation mode to dynamic.

<Device> system-view
[Device] interface route-aggregation 1
[Device-Route-Aggregation1] link-aggregation mode dynamic

# Configure an IP address and subnet mask for Layer 3 aggregate interface Route-Aggregation 1.

[Device-Route-Aggregation1] ip address 192.168.1.1 24

# Configure Layer 3 aggregate interface Route-Aggregation 1 as an edge aggregate interface.

[Device-Route-Aggregation1] lacp edge-port
[Device-Route-Aggregation1] quit

# Assign Layer 3 Ethernet interfaces GigabitEthernet 2/1/1 and GigabitEthernet 2/1/2 to aggregation group 1.

[Device] interface gigabitethernet 2/1/1
[Device-GigabitEthernet2/1/1] port link-aggregation group 1
[Device-GigabitEthernet2/1/1] quit
[Device] interface gigabitethernet 2/1/2
[Device-GigabitEthernet2/1/2] port link-aggregation group 1
[Device-GigabitEthernet2/1/2] quit

Verifying the configuration

# Display detailed information about all aggregation groups on the device when the server is not configured with dynamic link aggregation.

[Device] display link-aggregation verbose
Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing
Port Status: S -- Selected, U -- Unselected, I -- Individual
Flags:  A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,
        D -- Synchronization, E -- Collecting, F -- Distributing,
        G -- Defaulted, H -- Expired

Aggregate Interface: Route-Aggregation1
Aggregation Mode: Dynamic
Loadsharing Type: NonS
System ID: 0x8000, 000f-e267-6c6a
Local:
  Port             Status  Priority Oper-Key  Flag
--------------------------------------------------------------------------------
  GE2/1/1          I       32768    1         {AG}
  GE2/1/2          I       32768    1         {AG}
Remote:
  Actor            Partner Priority Oper-Key  SystemID               Flag
--------------------------------------------------------------------------------
  GE2/1/1          0       32768    0         0x8000, 0000-0000-0000 {DEF}
  GE2/1/2          0       32768    0         0x8000, 0000-0000-0000 {DEF}

The output shows that GigabitEthernet 2/1/1 and GigabitEthernet 2/1/2 are in Individual state when they do not receive LACPDUs from the server. Both GigabitEthernet 2/1/1 and GigabitEthernet 2/1/2 can forward traffic. When one port fails, its traffic is automatically switched to the other port.