Metal and Network Edge (Layer 2)

Purpose

This section provides the Network Edge configuration steps to connect to an Equinix Metal instance with a Layer 2 connection.

Users can implement a simple network design between Equinix Metal and Network Edge. Because Equinix Fabric (the underlying network service connecting both services together) is a Layer 2 VLAN between both endpoints, it is possible to have a single subnet spanning Network Edge and Equinix Metal. This is the most basic method to establish connectivity between NE and a small group of Metal instances.

Important: This is a single broadcast domain that might not be suitable for all situations. Consideration should be given to other designs as the Metal workloads expand.

Overview

For this scenario, we’ll use a basic Layer 2 connection between Network Edge and Equinix Metal. A single subnet, 172.16.0.1/24, will be configured on both the NE device and the Metal Server.

This configuration assumes the following steps are complete:

1. Metal instance created

2. Network option changed to Hybrid Bonded

3. Sub-interface on Metal instance created

4. Equinix Fabric connection requested

5. A new VLAN created in Metal Console

6. Fabric connection attached to VLAN in Metal Console

7. Network Edge instance created

8. Fabric connection created between Network Edge and Equinix Metal

Components

• Network Edge, Cisco CSR100v router (Equinix-Configured Device)

• Equinix Fabric Virtual Connection

• Equinix Metal c3.medium.x86 instance

Equinix Metal Configuration

1. Create the sub-interface on the Metal server with the IP address 172.16.0.100.

2. Make sure the Metal server is attached to the VLAN for the Fabric Virtual Connection.

Network Edge Configuration

1. Log in to the Equinix Fabric Portal and locate the Network Edge devices.

2. Identify the interface for the Fabric connection to Metal.

3. SSH to the Network Edge Cisco CSR1000v Virtual device and double check the interface assignment.

   NE1>sh int des
   Interface                      Status         Protocol Description
   Gi1                            up             up       MGMT interface
   Gi2                            up             up       SSH Interface
   Gi3                            admin down     down    
   Gi4                            admin down     down    
   Gi5                            admin down     down    
   Gi6                            admin down     down    
   Gi7                            admin down     down    
   Gi8                            admin down     down    
   Gi9                            admin down     down    
   Gi10                           admin down     down    
   Lo10                           up             up       Public Access to VNF
   NE1>

4. Configure GigE10 on the Cisco router.

   NE1>en
   Password:
   NE1#conf t
   Enter configuration commands, one per line.  End with CNTL/Z.
   NE1(config)#int gig10
   NE1(config-if)#vrf forwarding cloud
   NE1(config-if)#ip address 172.16.0.50 255.255.255.0
   NE1(config-if)#no shut

5. Verify network connectivity to Metal Instance. Ping from NE to Metal.

   NE1# ping vrf cloud 172.16.0.100
   Type escape sequence to abort.
   Sending 5, 100-byte ICMP Echos to 172.16.0.100, timeout is 2 seconds:
   !!!!!
   Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms

   Tip: For Equinix-configured devices, ensure the ping command includes vrf cloud.

6. Ping from Metal to NE.

   [root@metal1 ~]# ping 172.16.0.50
   PING 172.16.0.50 (172.16.0.50) 56(84) bytes of data.
   64 bytes from 172.16.0.50: icmp_seq=1 ttl=255 time=0.766 ms
   64 bytes from 172.16.0.50: icmp_seq=2 ttl=255 time=0.821 ms
   64 bytes from 172.16.0.50: icmp_seq=3 ttl=255 time=0.811 ms
   64 bytes from 172.16.0.50: icmp_seq=4 ttl=255 time=0.803 ms
   ^C
   --- 172.16.0.50 ping statistics ---
   4 packets transmitted, 4 received, 0% packet loss, time 3003ms
   rtt min/avg/max/mdev = 0.766/0.800/0.821/0.028 ms

Metal and Network Edge are now connected at Layer 2.