- Complete Components:
- Core IGP/LDP on PE and Ps
- ‘mpls ldp autoconfig’ under OSPF process for example.
- VRF PE to CE
- PE to CE Routing
- VPNv4 BGP between PEs.
- VRF to VPNv4 Import/Export
- Data Plane
- Core IGP/LDP on PE and Ps
- Core IGP/LDP
- Did LDP ‘Tunnels’ properly form?
- ‘show mpls interfaces’
- This command will not show loopback interfaces, but the loopback needs to be advertised into IGP for these LDP tunnels to form.
- ‘show mpls ldp neighbor’
- ‘show mpls ldp binding’
- Displays exact label data for specific path.
- ‘show mpls interfaces’
- Did LDP ‘Tunnels’ properly form?

- Core IGP/LDP continued….
- Is there an LSP between PE /32 Loopbacks?
- ‘show mpls forwarding-table’
- ‘show ip cef’
- ‘traceroute’
- Important there’s a full path via loopback interfaces.
- Is there an LSP between PE /32 Loopbacks?
- VRF PE to CE
- ‘show <ip> vrf’
- ‘show <ip> vrf detail’
- ‘show run vrf’
- Were interfaces properly allocated to the VRF?
- ‘show ip route vrf *’
- ‘show ipv6 route vrf *’
- VPNv4 BGP Between PEs
- ‘show bgp vpnv4 unicast all summary’
- ‘show ip bgp vpnv4 all summary‘
- Are extended communities being sent?
- ‘debug bgp vpnv4 unicast updates’
- VRF to VPNv4 import/Export
- ‘show <ip> vrf detail‘
- ‘show run vrf’
- Did IGP to BGP redistribution occur?
- ‘show bgp vpnv4 unicast all’
- ‘show ip ospf database’
- ‘show ip eigrp topology’
- Are VPNv4 routes being sent/received?
- ‘show bgp vpnv4 unicast all’
- ‘show bgp vpnv4 unicast all neighbor advertised-routes’
- ‘clear bgp vpnv4 unicast * [in|out]’
- Data Plane
- CE commands are normal global
- Ensure verification comes from correct source
- PE-CE link might not be exported into VPNv4.
- PE Commands VRF aware
- ‘ping vrf’
- ‘traceroute vrf’
- ‘telnet vrf’
- CE commands are normal global