In MPLS enabled networks, packets are forwarded based on labels. These labels may be distributed by LDP, RSVP-Te of even BGP. In this post, we will not cover how these labels are exchanged but we will cover the MPLS label operations in the data plane. Basically, there are 3 operations done by MPLS routers in …
In MPLS enabled networks, packets are forwarded based on labels. These labels usually correspond to IP destination addresses like loopback addresses of nodes. The concept of downstream and upstream in MPLS networks are very important to understand label distribution with MPLS control plane and labaled data forwarding in MPLS data plane. And these concepts are usually …