The definitive guide to troubleshooting todays complex BGP networks This is todays best single source for the techniques you need to troubleshoot BGP issues in modern Cisco IOS IOS XR and NxOS environments. BGP has expanded from being an Internet routing protocol and provides a scalable control plane for a variety of technologies including MPLS VPNs and VXLAN. Bringing together content previously spread across multiple sources Troubleshooting BGP describes BGP functions in todays blended service