This cache is called the IP fast switching route cache and is used by the interrupt code to switch subsequent packets for the same destination. The switching of the first packet by the central CPU gives the CPU the opportunity to build a cache. The first packet for a destination that arrives is process switched. Based on the outcome of this lookup, the process switches out the packet on a particular interface after it does some housekeeping on the IP header. When switching a packet through the router, a Cisco IOS process copies the packet to the CPU memory and looks up the destination IP address in the IP routing table.
Anyone taking this course should have an understanding of networking specifically in the WAN domain.Process switching is the slowest of all switching methods. The goal of this course is to give to the student an understanding of the real importance of MPLS and its applications. Understand the concepts needed for your CCNP and CCIE certifications purposes. It is up to each student to obtain the simulator/emulator of their choice to study along with this course. The Cisco Packet Tracer and/or VIRAL (Virtual Internet Routing Lab) are Cisco proprietary software and can only be obtained through Cisco. It is the student's responsibility to have these to practice with. We will also learn how to create VRF's in order to make all this possible, as well as understand the CEF, LFIB, LRIB, and much more tables in order to troubleshoot MPLS.ĭISCLAIMER: Please note that the simulators/emulators used in this course are not part of the course. We will definitely be creating Provider Edge routers Customer Edge Routers and have customers within the same company communicate with each other and different companies also be able to communicate with each other through VPN. We will be creating multiple types of VPNs and through the use for Route Targets and Route Reflectors, we'll demonstrate how packets can be manipulated in a particular direction. Using the hands-on lab we will get to see how these labels get forwarded and we will be configuring multiple IGP routing protocols along with BGP to get information across our network. We will discuss the LDP protocol, what labels are and how they get forward it to other LDR Routers. We will be discussing why MPLS was implemented, the terminology used in an MPLS environment, the configurations used in MPLS, concentrating on using Layer 3 VPNs. 
In this course, we will cover all the fundamentals of MPLS.
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