L2
Creation

Step 1 - Navigate to Application Profiles in the Tenants Tab under Tenant

Step 2 - Create Application Profile

In this step, we will be creating one EPG named aci_p21_epg_L2 which will allow internal devices in the ACI to be able to communicate to the Outside Network.

  1. Name the of the Application Profile aci_p21_ap_L2
  2. Click on the Plus (+) Sign

Step 3 - Create L2 EPG

During this step, we need to input the following parameters:

  1. Name of the EPG : aci_p21_epg_L2
  2. BD : This is the BD that is going to be associated to the EPG aci_p21_bd_l2
  3. Domain: aci_p21_physdom.
  4. Click Update
  5. Click Submit

Step 4 - Add Static Path

In this step we will be adding the physical ports to our EPG in order to establish a connection to the outside of the fabric. We will be connecting to a N7K via Port-Channel. In order to add Static Ports, we need to follow these steps:

  1. Expand the Tenant aci_p21_tenant
  2. Expand Application Profiles folder
  3. Expand the of the Application Profile aci_p21_ap_L2
  4. Expand Application EPG's folder
  5. Expand Application EPG aci_p21_epg_L2
  6. Right click on Static Ports
  7. Click on Deploy Static EPG on PC, VPC, or Interface

Step 5 - Deploy Static Port-Channel

In this screen we need to add the physical Leaf Port(s) that ACI is using to connect to the N9K. We also need to specify the VLAN number that the N9K is using.

  1. Change the Path Type to Direct Port Channel
  2. Path = aci_p21_intpolg_pc
  3. Port Encap (or Secondary VLAN for Micro-Seg): 2100
  4. Click Next
  5. Click Finish

Please verify your work before proceeding.

Verify your work

Step 6 - Layer 2 Verification

Once we have completed adding the Static Path to the configuration. It is time to verify that we have connectivity to the N9K.

If you closed the window for the Nexus 9K you can click on the console ICON on the left to start the connection to the Nexus9K we are using as the external L3 connection. Username: acipod21 Password: cisco.123

Log to the N9K and verify the Port-Channel is up and running. 


show port-channel summary interface Port-Channel 21


N9K-Ext-Rtr# show port-channel summary interface port-channel 21
L6                   Eth         120        BR          Eth1/1    
Flags:  D - Down        P - Up in port-channel (members)
        I - Individual  H - Hot-standby (LACP only)
        s - Suspended   r - Module-removed
        b - BFD Session Wait
        S - Switched    R - Routed
        U - Up (port-channel)
        p - Up in delay-lacp mode (member)
        M - Not in use. Min-links not met
--------------------------------------------------------------------------------
Group Port-       Type     Protocol  Member Ports
      Channel
--------------------------------------------------------------------------------
21    Po21(SU)    Eth      NONE      Eth102/1/1(P)  Eth102/1/2(P)