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MPLS
MPLS Overview
• MPLS or Multiprotocol label switching is a new
network protocol that defined a mechanism for
packet forwarding in network router.
• It was originally developed to provide faster packet
forwarding than traditional IP routing by IETF.
• MPLS is an interested solution that it will play an
important role in the routing, switching and
forwarding of packets through the next-generation
network in order to meet the service demands of the
network users.
MPLS Overview
• Traditional IP networks send
and receive data by router
using IP packet.
• MLPS also uses IP addresses
with an identifier (label) to
identify end point and
intermediate switches and
routers .
• MPLS can help packet forwarding send and receive
the data faster than tradition IP routing.
MPLS Architecture
IP Routing
Protocol
Routing
Information
Exchange
Routing Table
Label
Information
Base (LIB)
Label Generation
& Management
Control
Component
Forwarding
Component
Label Forwarding
Information Base
(LIFB)
Incoming
MPLS Packet
Packet Forwarding
Outgoing
MPLS Packet
MPLS Architecture
• The control component created and maintained labelforwarding information surrounded by a group of
interconnected label switches which IP routing
protocols can exchange routing information and
another component manages label distribution.
• The forwarding component uses a
label-forwarding database maintained
by a label switch to perform the
forwarding of data packets based on
labels carried by packets which packet
ask the LFIB for proper forwarding in
an outgoing direction.
How do MPLS work?
• MPLS operates at an OSI model layer between Layer 2
(Data Link Layer) and Layer 3 (Network Layer), so it is
often referred as a Layer 2.5 protocol.
• The main function of MPLS is organizing the path of
packet or new routing in the particular path which
referred to as a LSP (Label Switch Path).
• MPLS adds a Label in front of a packet as another
header.
How do MPLS work?
• Routers must be label-switched routers (LSRs) and
each LSR must maintain a valid mapping from the
label of an incoming packet.
• The router uses the label to identify the LSP.
• This label looks up the LSP in its own forwarding
table to determine the best path over which to
forward the packet and the label to use on this next
hop.
How do MPLS work?
Advantages
• QoS capabilities
• Performance upgrade, increased response time and
improved application performance
• Disaster recovery
• Future-proofing the network
• MPLS services is cost-effective
Disadvantages
• Inability of MPLS to provide application-level routing
intelligence, a fundamental component for voice
delivery
Service Provider
• MPLS (IP VPN) is a data communication
service, which work in a full mesh
network, provide a high reliability and
make employee and organization more
convenience via LAN, or intranet
including E-Commerce applications.
• MPLS-network consists of routers and
switches connected to transport
facilities such as fiber optic links.
Customer connects to core network via
multiservice edge (MSE) router.
Service Provider
• 3 popular MPLS service provider in
Thailand that is …
CAT, True and 3 Broad Band (3BB)
Service Provider
• CAT provide 2 type of service that are
ACASIA Direct IP:
• ACASIA Direct IP
• ACASIA Dial IP
• True provide 2 types of MPLS service
• MPLS VLL
• MPLS VLL
• 3BB (3 broad band) provide IPMPLS
The future of MPLS
MPLS Transport Profile (MPLS-TP) in the future,
basically the same as MPLS but with key new
features such as Quality of Service, fast reroute and
put that into optical and transport networks that
have typically been based on TDM only, it also
improve the level of control from basic MPLS. In
addition, the next key evolution of MPLS is an ideal
technology to use for 4G wireless Long Term
Evolution (LTE).
Thank You…