Configuring a Layer 2 static aggregation group

Prerequisites

You must be in the global configuration context: switch(config)#

Procedure

Create a Layer 2 aggregate interface and access the Layer 2 aggregate interface view by entering:
```
switch(config)# interface lag <ID>
```
The range of the LAG interface ID is 1 to 256.

While creating the Layer 2 aggregate interface, the system automatically creates a Layer 2 static aggregation group numbered the same.
Set the operational state of every interface in the LAG to up by entering:
```
switch(config-lag-if)# no shutdown
```
NOTE:
This command does not impact the administrative state of the member interfaces because the command was entered at the level of the LAG. To change the administrative state of a member interface, enter the command at the interface level. For example:
```
switch(config)# interface 1/1/2
switch(config-if)# no shutdown
```
On the 8320, 8325, 8360, and 8400, disable routing by entering:
```
switch(config-lag-if)# no routing
```
See the Command-Line Interface Guide for your switch and software version for more information about the no routing command.

NOTE:
On the 6100 and 6200 Switch Series, routing is not supported on physical interfaces.

On the 6300 and 6400 Switch Series, routing is disabled by default.

Assign a native VLAN ID to a trunk interface on the LAG by entering:

switch(config-lag-if)# vlan trunk native <VLAN-ID>

For example:

switch(config-lag-if)# vlan trunk native 1

Use the following steps to add a maximum of 16 interfaces to the LAG:
1. To assign an interface to the LAG:
```
switch(config-lag-if)# interface <PORT-ID>
```
  To assign a range of interfaces to a LAG:
```
switch(config-lag-if)# interface <PORT-ID>-<PORT-ID>
```
  For example:
```
switch(config-lag-if)# interface 1/1/1-1/1/4
```
  See the Command-Line Interface Guide for your switch and software version for more information about the interface <PORT-ID> command.
2. Assign an ID to the LAG:
```
switch(config-if)# lag <ID>
```
  For example:
```
switch(config-if-<1/1/1-1/1/4>)# lag 100
```
3. Set the administrative state of the member interface to up:
```
switch(config-if-<1/1/1-1/1/4>)# no shutdown
```

View the configuration by entering the following:

For 6100, 6200, 6300, and 6400 switch series:

switch(config-if-<1/1/1-1/1/4>)# show running-config  

Current configuration:
!
vlan 1
interface lag 100
    no shutdown
    vlan trunk native 1
    vlan trunk allowed all
interface 1/1/1
    no shutdown
    lag 100
interface 1/1/2
    no shutdown
    lag 100
interface 1/1/3
    no shutdown
    lag 100
interface 1/1/4
    no shutdown
    lag 100

switch(config-if-<1/1/1-1/1/4>)# show lacp aggregates

Aggregate name   : lag100
Interfaces       : 1/1/3 1/1/1 1/1/4 1/1/2
Heartbeat rate   : N/A
Hash             : l3-src-dst
Aggregate mode   : Off

For 8320, 8325, 8360, and 8400 switch series:

switch(config-if-<1/1/1-1/1/4>)# show running-config  

Current configuration:
!
vlan 1
interface lag 100
    no shutdown
    no routing
    vlan trunk native 1
    vlan trunk allowed all
interface 1/1/1
    no shutdown
    lag 100
interface 1/1/2
    no shutdown
    lag 100
interface 1/1/3
    no shutdown
    lag 100
interface 1/1/4
    no shutdown
    lag 100

switch(config-if-<1/1/1-1/1/4>)# show lacp aggregates

Aggregate name   : lag100
Interfaces       : 1/1/3 1/1/1 1/1/4 1/1/2
Heartbeat rate   : N/A
Hash             : l3-src-dst
Aggregate mode   : Off