4. Advantages of MPLS routing
1. Reliability and quality of service (QoS) compared to other WAN connectivity options.
2. Faster Speed: Due to the labeling technology, the speed of performing lookups for destinations and routing is much faster than the standard IP table lookups non-MPLS routers have to perform.
3. Security: MPLS offers greater security and are often required for companies which need enhanced privacy and security for their network needs. Some industries like the Health Care and Financial industries are examples of industries mandated by Federal law to comply with specific requirements for network security.
4. Improve Uptime-by sending data over an alternative path in less than 50 milliseconds (if one exists). MPLS also reduces the amount of manual intervention your network provider has to do to create a WAN, reducing the likelihood of human error bringing down your circuit.
5. Create Scalable IP VPNs-with MPLS it's easy to add an additional site to the VPN. There is no need to configure a complex mesh of tunnels, as is common with some traditional approaches.
6. Improve User Experience-by prioritising time-sensitive traffic such as VoIP. Multi-Protocol Label Switching offers multiple Classes of Service, enabling you to apply separate settings to different types of traffic.
7. Improve Bandwidth Utilization-by putting multiple types of traffic on the same link, you can let high priority traffic borrow capacity from lower priority traffic streams whenever required. Conversely, when the lower priority traffic needs to burst beyond its usual amount of bandwidth, it can use any capacity that's not being used by higher priority services.
8. Hide Network Complexity-an MPLS connection between two sites can be configured to act like a long Ethernet cable, with the hops involved hidden from view. This is sometimes known as VPLS (Virtual Private LAN Service).
9. Reduce Network Congestion-Sometimes the shortest path between two locations isn't the best one to take, as congestion has made it less attractive (at least for the time being). MPLS offers sophisticated traffic engineering options that enable traffic to be sent over non-standard paths. This can reduce latency (the delay in sending/receiving data). It also reduces congestion on the paths that have just been avoided as a result of traffic engineering.
5. Conventions (Abbreviations) Used
MPLS-Multi Protocol Label Switching
LDP-Label Distribution Protocol
TDP-Tag Distribution Protocol
RSVP- Resource Reservation Protocol
LSP- Label Switched Paths
LSR- Label Switching Router
VPN- Virtual Private Network
MTU- Maximum Transmission Unit
L2Tp-Layer Two Tunneling Protocol
QoS-Quality of Service
VPLS-Virtual Private LAN Service
TTL-Time to Live
AToM-Any Transport over MPLS
FEC-Forwarding Equivalence Class
4.Cisco/Juniper Network Simulators (NetSims)