This section covers the L3 routed uplink configuration with BGP.
Home > Networking Solutions > Enterprise/Data Center Networking Solutions > SmartFabric OS10 Networking Solutions > Guides > Dell EMC SmartFabric Services with PowerEdge Servers, PowerStore Storage Appliance, and Isilon Storage > BGP example
This section covers the L3 routed uplink configuration with BGP.
The following figure shows the autonomous system numbers (ASNs) and router IDs used for the external switches and SFS leaf switches in this example.
External switches share a common ASN, and all SFS leaf switches share a common ASN.
In this example, ASN 65101 is used on both external switches. SFS leaf switches use ASN 65011 by default for all leafs in the fabric.
The IP addresses shown on the external network switches in the figure are loopback addresses used as BGP router IDs. On the SmartFabric switches, BGP router IDs are automatically configured from the SFS default private subnet address block, 172.16.0.0/16.
The following table shows the values entered in the SFS UI to configure the L3 uplinks for this example. The steps below the table are run once for each uplink using the values in the table.
Field name | Leaf1A-to-External-A | Leaf1A-to-External-B | Leaf1B-to-External-A | Leaf1B-to-External-B |
Uplink Port Type | L3 | L3 | L3 | L3 |
L3 Type | L3 Routed Interface | L3 Routed Interface | L3 Routed Interface | L3 Routed Interface |
Uplink Name | Leaf1A-to-External-A | Leaf1A-to-External-B | Leaf1B-to-External-A | Leaf1B-to-External-B |
Switch Group | Leaf | Leaf | Leaf | Leaf |
Rack | Rack 1 | Rack 1 | Rack 1 | Rack 1 |
Node | Leaf1A | Leaf1A | Leaf1B | Leaf1B |
Interface | Ethernet 1/1/53 | Ethernet 1/1/54 | Ethernet 1/1/53 | Ethernet 1/1/54 |
Network Name | Leaf1A-to-ExtA | Leaf1A-to-ExtB | Leaf1B-to-ExtA | Leaf1B-to-ExtB |
Prefix Length | 31 | 31 | 31 | 31 |
IP Address | 192.168.1.1 | 192.168.2.1 | 192.168.1.3 | 192.168.2.3 |
Routing Protocol | eBGP | eBGP | eBGP | eBGP |
Policy Name | eBGP-Leaf1A-to-ExtA | eBGP-Leaf1A-to-ExtB | eBGP-Leaf1B-to-ExtA | eBGP-Leaf1B-to-ExtB |
Peer Interface IP Address | 192.168.1.0 | 192.168.2.0 | 192.168.1.2 | 192.168.2.2 |
Peer ASN | 65101 | 65101 | 65101 | 65101 |
BFD Neighbor | Disable | Disable | Disable | Disable |
Fabric Interconnect | unchecked | unchecked | unchecked | unchecked |
For each uplink, perform the following steps to configure L3 routed uplinks with BGP using the data from the preceding table.
The Topology tab displays as shown in the figure below.