Supervisor: Nguyễn Đức Quang
QoS over MPLS for Hutech network
Table of Contents
Architecture of Subject.......................................................................................4
Relation Words ...................................................................................................5
Multiprotocol label switching ............................................................................6
Actuality of MPLS at VietNam..........................................................................6
Advantage of MPLS ...........................................................................................8
Disadvantage of MPLS.......................................................................................8
Icon use in subject ..............................................................................................9
CHAPTER 1: INTRODUCTION ABOUT NETWORK
SYSTEM OF HUTECH UNIVERSITY .................................... 10
1.1. Description about network system of Hutech University. ..........................11
1.2. Important problem and solution. .................................................................11
1.3. Task of subject.............................................................................................12
CHAPTER 2: QOS OVER MPLS NETWORK......................... 13
Part 1: Overview about MPLS .................................................... 14
2.1. Architecture of MPLS packet......................................................................15
2.1.1. Label. ..................................................................................................15
2.1.2. Experimental. ......................................................................................15
2.1.3. Bottom of Stack. .................................................................................15
2.1.4. Time to Live........................................................................................16
2.2. Operating of MPLS network. ......................................................................16
2.2.1. MPLS domain. ....................................................................................16
2.2.2. Ingress and egress node. .....................................................................17
2.2.3. Label Switch Router. ..........................................................................17
2.2.4. Label Switch Path. ..............................................................................18
2.2.5. Forwarding Equivalent Class..............................................................18
Student: Trần Quang Hải Đăng
-1-
Supervisor: Nguyễn Đức Quang
QoS over MPLS for Hutech network
2.2.6. Label Distribution Protocol. ...............................................................19
2.3. Command for configure MPLS ...................................................................20
Part 2: Overview about QoS ....................................................... 22
2.4. Architecture of QoS.....................................................................................23
2.4.1. IntServ model......................................................................................23
2.4.2. DiffServ model....................................................................................25
2.4.3. Different between IntServ model and DiffServ model.......................27
2.5. Classification. ..............................................................................................27
2.6. Marking. ......................................................................................................27
2.7. Queuing tools...............................................................................................28
2.7.1. First In-First Out Queuing. .................................................................29
2.7.2. Priority Queuing..................................................................................31
2.7.3. Custom Queuing. ................................................................................32
2.7.4. Weighted Fair Queuing.......................................................................33
2.7.5. Class-Based Weighted Fair Queuing..................................................38
2.7.6. Low-latency Queuing. ........................................................................41
Part 3: QoS over MPLS............................................................... 44
2.8. Relation about IPP, DSCP and MPLS EXP. ...............................................45
2.8.1. IPP.......................................................................................................45
2.8.2. DSCP...................................................................................................46
2.8.3. MPLS EXP..........................................................................................47
2.9. DiffServ with IP packets. ............................................................................48
2.10. DiffServ with MPLS packets. ...................................................................50
2.11. DiffServ Tunneling Modes for MPLS networks.......................................52
2.11.1. Pipe Model. .......................................................................................52
2.11.2. Short-Pipe Model. .............................................................................54
2.11.3. Uniform Model. ................................................................................55
2.12. Steps implement QoS over MPLS.............................................................57
Student: Trần Quang Hải Đăng
-2-
Supervisor: Nguyễn Đức Quang
QoS over MPLS for Hutech network
CHAPTER 3: NETWORK DESIGN AND IMPLEMENT ....... 58
3.1. Building solution for Hutech network.........................................................60
3.1.1. Real model of Hutech network. ..........................................................60
3.1.2. Solution model for Hutech network....................................................61
3.2. Building simulation model to resolve for Hutech network. ........................62
3.2.1. Simulation model. ...............................................................................62
3.2.2. Implement QoS over MPLS in simulation model. .............................64
3.3. Get Result. ...................................................................................................72
Get Result and Define of develop in Subject.............................. 74
References .........................................................................................................75
Index ...................................................................................................................76
Student: Trần Quang Hải Đăng
-3-
Supervisor: Nguyễn Đức Quang
QoS over MPLS for Hutech network
Architecture of subject
Subject includes three chapters:
Chapter 1: Introduction about network system of Hutech University, problem of
Hutech network system, solution to resolve.
Chapter 2: Chapter 2 includes three parts.
Part 1: Overview about MPLS, architecture MPLS packet, operation of MPLS
network, command line for configure MPLS operation.
Part 2: Overview about QoS, architecture of QoS, classification, marking and
queuing tool.
Part 3: QoS over MPLS, relative about IPP, DSCP and MPLS EXP, DiffServ with
IP packet and MPLS packet, DiffServ tunneling mode, steps implement QoS over
MPLS network.
Chapter 3: Network design and implement. Deploy QoS over MPLS, get result
and define of develop in subject.
Student: Trần Quang Hải Đăng
-4-
Supervisor: Nguyễn Đức Quang
QoS over MPLS for Hutech network
Relation Words
IPP
: IP Precedence (value support implement QoS)
DSCP
: Differentiated Services Code Point
MPLS
: Multiprotocol Label Switching
EXP
: Experimental
QoS
: Quality of Service
LSP
: Label Switched Path
LSR
: Label Switched Router
IntServ
:Iintegrated services
DiffServ
: Differentiated Services
LLQ
: Low-latency Queuing
FIFO
: First In – First Out
CQ
: Custom Queuing
WFQ
: Weighted Fair Queuing
CBWFQ
: Class-Based Weighted Fair Queuing
LDP
: Label Distribution Protocol
Student: Trần Quang Hải Đăng
-5-
Supervisor: Nguyễn Đức Quang
QoS over MPLS for Hutech network
Multiprotocol Label Switching
Multiprotocol Label Switching (MPLS) is a standards-approved technology for
speeding up network traffic flow and making it easier to manage. MPLS involves
setting up a specific path for a given sequence of packets, identified by a label put
in each packet, thus saving the time needed for a router to look up the address to
the next node to forward the packet to. MPLS is called multiprotocol because it
works with the Internet Protocol (IP), Asynchronous Transport Mode (ATM), and
frame relay network protocols. With reference to the standard model for a network
(the Open Systems Interconnection, or OSI model), MPLS allows most packets to
be forwarded at the layer 2 (switching) level rather than at the layer 3 (routing)
level. In addition to moving traffic faster overall, MPLS makes it easy to manage a
network for quality of service (QoS). For these reasons, the technique is expected
to be readily adopted as networks begin to carry more and different mixtures of
traffic.
Actuality of MPLS at VietNam
-With VietNam, MPLS deployment are building in communication network at
VNPT head of company VietNam. With VoIP project is deploying, VNPT
established an axle MPLS network with three LSR core. LSRs edge will be
invested and extended at places have large demand as Hai Phong, Quang Ninh at
north, Da Nang, Khanh Hoa…at medium, Binh Duong, Dong Nai, Ba Ria – Vung
Tau…at south. Next, FPT Telecom, Viettel, electricity are taked part and create
competition environment with high QoS and cheap.
- Present, not including companies and foreign office representative, there are a
lot of home companies in finance field, insurance, bank use this service (Bao Viet
insurance company, Dong A bank…). Beside that, arrange state as Ministry of
Finance, customs, treasury, tax associated together by VPN/MPLS.
-VPN/MPLS technology officially deployed, applied and test successfully and
inserted to exploited from 2003 by VDC. 2004, VPN MPLS solution of VDC
Student: Trần Quang Hải Đăng
-6-
Supervisor: Nguyễn Đức Quang
QoS over MPLS for Hutech network
saved up technology information IT Week 14 gold cup and extended to exploited
on all 64 provinces of all the country with trade name VPN/VNN.
- VPN/VNN MPLS solution of VDC apply and deploy to rely on pass and
device technology of Cisco, with target create a network solution safe, security,
slow late and intergrate with each apply as Data, Voice, Video…
Price for first setup: include price for setup and link to MPLS/VNN
Order
Speed
Price for channel
TDNH
(VND/channel/time)
1
2
3
4
5
64 Kbps
128Kbps
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