Acme Corporation decided to use EvilCorp to provide connectivity between their branches (Site A and Site B). They agreed to use the BGP protocol and establish a neighbor relationship between R1 (Site A) and R3 (EvilCorp) as well as R4 (Site B) and R3 (EvilCorp). There are numerous problems in the network. Would you be able to solve them to provide connectivity between client sites? Topology Every router has a Loopback0 configured with IP address X....
MPLS operations, administration, and maintenance (OAM) is a set of tools that helps to troubleshoot MPLS networks. One of the MPLS OAM tools is MPLS ping. In this article, I will describe why normal IP ping is insufficient for verifying Label Switched Path (LSP), and how MPLS ping solves that problem. Diagram Every router has a Loopback0 configured with IP address X.X.X.X/32, where X is the router number, i.e R2 (2....
LDP and RSVP-TE are both signaling protocols used for establishing LSP in the MPLS networks. The latter one provides traffic engineering capability and in this article, I will try to set basic MPLS-TE tunnels on IOS XR devices to show you a problem, you can run into. A label switched path (LSP) is a sequence of LSR that switch a labeled packet through an MPLS network. As long LSP is contiguous (end-to-end between PE routers) there should be no problem in forwarding packets....