Networking · Episode 05 · 2:45
Explore an IPv4 MPLS VPN
Use a prepared IPv4 MPLS VPN to inspect routes and labels, test customer connectivity, and see how disabling and restoring MPLS affects the VPN.
English narration and on-screen explanations. Read the narration transcript.
Chapters
Narration transcript
The English narration in this video. Select a time to watch that moment.
Explore a prepared three-router IPv4 MPLS VPN.
First, check that the provider loopbacks can reach one another.
Check the VPN routes and the edge-router session: a received prefix count means the session is established.
Compare MPLS labels on R1 and R2.
Test connectivity to the remote customer address inside the VPN.
Turn off MPLS on the link from R2 to R3, and watch the VPN test fail.
Ordinary IP can still work while the VPN path is unavailable.
Restore MPLS on the same link and confirm the customer test succeeds again.
