Troubleshooting BGP EVPN VXLAN Troubleshooting Scenarios for BGP EVPN VXLAN, on page 1 Troubleshooting Broadcast, Unkown Unicast, Multicast Traffic Forwarding, on page 2 Troubleshooting Unicast Forwarding Between VTEPs in the Same VLAN Through a Layer 2 VNI, on page 6 Troubleshooting Unicast Forwarding Between VTEPS in Different VLANs Through a Layer 3 VNI, on page 18 Troubleshooting Unicast Forwarding Between a VXLAN Network and an IP Network, on page 31 Troubleshooting Tenant Routed Multicast, on page 34 Troubleshooting Scenarios for BGP EVPN VXLAN This document provides information about the various troubleshooting scenarios that are applicable to BGP EVPN VXLAN and how to troubleshoot each scenario.
In this troubleshooting document, comments have been added at the end of certain lines of the outputs of show commands. This has been done to highlight or explain a specific aspect of that line of output. If a comment begins in a new line, then it refers to the line of output that precedes the comment. The following notation has been used throughout the document to highlight the comments inside the outputs of show commands: Text highlighted in this format inside a command's output represents a comment. This is done for explanation purpose only and is not part of the command's output.
The following is a sample EVPN VXLAN topology with two access facing VTEPs (VTEP 1 and VTEP 2) and a border leaf VTEP connected in a VXLAN network through an EVPN route reflector. Each of the access facing VTEPs has two host devices connected to it and the border leaf VTEP is connected to an external IP network. All the troubleshooting scenarios in this document are explained using this topology. Troubleshooting BGP EVPN VXLAN 1