Wall Tag: Posts about MPLS and technologies around it.
OSPF is one of the most popular Interior Gateway Protocols. It uses Link State Advertisements (LSAs) to build a Link State Database (LSDB).
L2VPN is a layer 2 service where different locations (customer sites) of an enterprise interconnect to form a big LAN segment.
The Border Gateway Protocol is the most commonly used exterior routing protocol. BGP takes care of the functioning of the internet.
The VRF works by combining the entities: Route Distinguisher, Route Target, and MP-BGP. VPNv4 routes and VPN labels are shared with each Label Edge Router that forms the base of VRF working.
Virtual Routing and Forwarding or VRF can be treated as a technology equivalent to the VLAN, but which works at Layer 3 of the OSI model.
Label Forwarding Information Base (LFIB), like FIB, is a Data-Plane forwarding table. LFIB is used for MPLS packets. LIB is a control-plane database that contains the mapping of labels and routes and is also part of MPLS.
Label distribution protocol is the most commonly used protocol in the MPLS network. LDP helps in the generation and distribution of labels across an MPLS network.
What is MPLS? Multiprotocol Label Switching or MPLS, though old, is still one of the most popular forwarding technologies used today. It helps in forwarding the data packets much faster across the network as opposed to the native IP routing. Multiprotocol comes from the fact that this technology can work Read more…