T Computer Networks: Routing Lecture II. c Janne Lindqvist 1/29
|
|
|
- Ralph Jackson
- 7 years ago
- Views:
Transcription
1 T Computer Networks Spring /29 T Computer Networks: Routing Lecture II c Janne Lindqvist janne.lindqvist@tml.hut.fi 1/29
2 T Computer Networks Spring /29 Goals of the Set of Lectures The big picture Routing protocols distance vector (RIP) link state (OSPF) path vector (BGP) multicast Routing algorithms c Janne Lindqvist janne.lindqvist@tml.hut.fi 2/29
3 T Computer Networks Spring /29 Routing Protocols Interior Gateway Protocols (IGP) vs. Exterior Gateway Protocols (EGP) distance vector vs. link state vs. path vector c Janne Lindqvist janne.lindqvist@tml.hut.fi 3/29
4 T Computer Networks Spring /29 Autonomous Systems (AS) stub multihomed transit Today: autonomous systems c Janne Lindqvist janne.lindqvist@tml.hut.fi 4/29
5 T Computer Networks Spring /29 Why IGP and EGP? Why the classification: intradomain interdomain? Discuss! c Janne Lindqvist janne.lindqvist@tml.hut.fi 5/29
6 T Computer Networks Spring /29 Answer to Why IGP and EGP? If every AS had only two routers. It would mean routers in the Internet. Impossible with distance vector and link state protocols We need a divided routing scheme. c Janne Lindqvist janne.lindqvist@tml.hut.fi 6/29
7 T Computer Networks Spring /29 Policy Routing Route preferences: do not use path that goes through AS 12 Which destinations are reported to which neighbors Path editing Practical examples university networks vs. corporate networks traffic originated and ending in Canada must not leave Canada c Janne Lindqvist janne.lindqvist@tml.hut.fi 7/29
8 T Computer Networks Spring /29 Top-level Internet Routing peering points Finland, two Ethernet switches FICIX1 Espoo, Otaniemi FICIX2 Helsinki, Pasila 1 or 10 Gigabit Ethernet c Janne Lindqvist janne.lindqvist@tml.hut.fi 8/29
9 T Computer Networks Spring /29 Routing Protocols Interior Gateway Protocols (IGP) vs. Exterior Gateway Protocols (EGP) distance vector vs. link state vs. path vector c Janne Lindqvist janne.lindqvist@tml.hut.fi 9/29
10 T Computer Networks Spring /29 Border Gateway Protocol (BGP-4) Border routers BGP speakers Used between autonomous systems Provides reachability and path information TCP as transport c Janne Lindqvist janne.lindqvist@tml.hut.fi 10/29
11 T Computer Networks Spring /29 BGP-4 Message Types Message Types 1 OPEN 2 UPDATE 3 NOTIFICATION 4 KEEPALIVE c Janne Lindqvist janne.lindqvist@tml.hut.fi 11/29
12 T Computer Networks Spring /29 BGP-4 OPEN Message Version AS number Hold Time BGP Identifier: IP address Parameters Used to initialize communication c Janne Lindqvist janne.lindqvist@tml.hut.fi 12/29
13 T Computer Networks Spring /29 BGP-4 UPDATE Message List of destinations to be removed. List of new available destinations and paths to them. Information from the receiver s perspective. c Janne Lindqvist janne.lindqvist@tml.hut.fi 13/29
14 T Computer Networks Spring /29 BGP-4 Why Paths? Why UPDATE message contains path information? Discuss! c Janne Lindqvist janne.lindqvist@tml.hut.fi 14/29
15 T Computer Networks Spring /29 Answer to BGP-4 Why paths? Detect loops Policy routing However, cannot be used to deduce the optimal route. c Janne Lindqvist janne.lindqvist@tml.hut.fi 15/29
16 T Computer Networks Spring /29 BGP-4 KEEPALIVE Message For testing reachability. Sending interval should be 1/3 of the hold timer. c Janne Lindqvist janne.lindqvist@tml.hut.fi 16/29
17 T Computer Networks Spring /29 BGP-4 NOTIFICATION Message For error reporting AS routing loop Hold time unacceptable etc. c Janne Lindqvist janne.lindqvist@tml.hut.fi 17/29
18 T Computer Networks Spring /29 To Make Things Not Simple intradomain: I-BGP interdomain: E-BGP c Janne Lindqvist janne.lindqvist@tml.hut.fi 18/29
19 T Computer Networks Spring /29 BGP Security misconfigurations e.g. a route that should have been filtered is exported e.g. October 2003 WorldCom s internal routers crashed attacks c Janne Lindqvist janne.lindqvist@tml.hut.fi 19/29
20 T Computer Networks Spring /29 BGP Security No integrity, freshness or authentication for messages. No validation of AS authority for reachability information. No validation of path attribtues announced. c Janne Lindqvist janne.lindqvist@tml.hut.fi 20/29
21 T Computer Networks Spring /29 Attacks Against BGP Eavesdropping Replay Messsage insertion Message deletion Message modification Man-in-the-middle Denial of service c Janne Lindqvist janne.lindqvist@tml.hut.fi 21/29
22 T Computer Networks Spring /29 Damage from Attacks starvation network congestion and delay blackhole looping eavesdrop cut and partition churn and instability resource exhaustion c Janne Lindqvist janne.lindqvist@tml.hut.fi 22/29
23 T Computer Networks Spring /29 Protection from Attacks TCP MD5 option filtering (S-BGP?) c Janne Lindqvist janne.lindqvist@tml.hut.fi 23/29
24 T Computer Networks Spring /29 Functions of IP Address unicast address interface identifier (socket binds to IP) topological locator (routing) multicast address group identifier c Janne Lindqvist janne.lindqvist@tml.hut.fi 24/29
25 T Computer Networks Spring /29 Multicast in Theory Routers use multicast routing protocols to establish connectivity across Internet. Hosts tell routers that they want to receive from group G i. Any host can send to the group. Sending and receiving is simple by socket APIs. bandwidth-efficient group communication c Janne Lindqvist janne.lindqvist@tml.hut.fi 25/29
26 T Computer Networks Spring /29 Multicast Routing Protocols flooding source-tree core-tree mesh hybrid Everyone has a favorite protocol (including me!) c Janne Lindqvist janne.lindqvist@tml.hut.fi 26/29
27 T Computer Networks Spring /29 The Dichotomy Revisited intradomain Distance Vector Multicast Routing Protocol (DVMRP) Multicast Extensions to OSPF (MOSPF) Protocol Independent Multicast (PIM-SM) (PIM-DM) interdomain Multicast Source Discovery Protocol (MSDP) Border Gateway Multicast Protocol (BGMP) c Janne Lindqvist janne.lindqvist@tml.hut.fi 27/29
28 T Computer Networks Spring /29 The Big Picture Default route in a host. OSPF in the access network in an AS. BGP between ASes. And additionally PIM and MBONE. c Janne Lindqvist janne.lindqvist@tml.hut.fi 28/29
29 T Computer Networks Spring /29 That s All Questions? c Janne Lindqvist janne.lindqvist@tml.hut.fi 29/29
Exterior Gateway Protocols (BGP)
Exterior Gateway Protocols (BGP) Internet Structure Large ISP Large ISP Stub Dial-Up ISP Small ISP Stub Stub Stub Autonomous Systems (AS) Internet is not a single network! The Internet is a collection
Inter-domain Routing. Outline. Border Gateway Protocol
Inter-domain Routing Outline Border Gateway Protocol Internet Structure Original idea Backbone service provider Consumer ISP Large corporation Consumer ISP Small corporation Consumer ISP Consumer ISP Small
Routing in Small Networks. Internet Routing Overview. Agenda. Routing in Large Networks
Routing in Small Networks Internet Routing Overview AS, IGP,, BGP in small networks distance vector or link state protocols like RIP or OSPF can be used for dynamic routing it is possible that every router
Route Discovery Protocols
Route Discovery Protocols Columbus, OH 43210 Jain@cse.ohio-State.Edu http://www.cse.ohio-state.edu/~jain/ 1 Overview Building Routing Tables Routing Information Protocol Version 1 (RIP V1) RIP V2 OSPF
Dynamic Routing Protocols II OSPF. Distance Vector vs. Link State Routing
Dynamic Routing Protocols II OSPF Relates to Lab 4. This module covers link state routing and the Open Shortest Path First (OSPF) routing protocol. 1 Distance Vector vs. Link State Routing With distance
Examination. IP routning på Internet och andra sammansatta nät, DD2491 IP routing in the Internet and other complex networks, DD2491
Examination IP routning på Internet och andra sammansatta nät, DD2491 IP routing in the Internet and other complex networks, DD2491 Date: December 15 2009 14:00 18:00 1. No help material is allowed - You
Inter-domain Routing Basics. Border Gateway Protocol. Inter-domain Routing Basics. Inter-domain Routing Basics. Exterior routing protocols created to:
Border Gateway Protocol Exterior routing protocols created to: control the expansion of routing tables provide a structured view of the Internet by segregating routing domains into separate administrations
Border Gateway Protocol (BGP)
Border Gateway Protocol (BGP) Petr Grygárek rek 1 Role of Autonomous Systems on the Internet 2 Autonomous systems Not possible to maintain complete Internet topology information on all routers big database,
Router and Routing Basics
Router and Routing Basics Malin Bornhager Halmstad University Session Number 2002, Svenska-CNAP Halmstad University 1 Routing Protocols and Concepts CCNA2 Routing and packet forwarding Static routing Dynamic
Module 7. Routing and Congestion Control. Version 2 CSE IIT, Kharagpur
Module 7 Routing and Congestion Control Lesson 4 Border Gateway Protocol (BGP) Specific Instructional Objectives On completion of this lesson, the students will be able to: Explain the operation of the
Outline. Internet Routing. Alleviating the Problem. DV Algorithm. Routing Information Protocol (RIP) Link State Routing. Routing algorithms
Outline Internet Routing Venkat Padmanabhan Microsoft Research 9 pril 2001 Routing algorithms distance-vector (DV) link-state (LS) Internet Routing border gateway protocol (BGP) BGP convergence paper Venkat
Layer 3 Routing User s Manual
User s Manual Second Edition, July 2011 www.moxa.com/product 2011 Moxa Inc. All rights reserved. User s Manual The software described in this manual is furnished under a license agreement and may be used
order ateway Sicherheit im Internet, Patrick Lederer,, 18.05.2004
B G order ateway M ulticast P rotocol 1 Abstract 1. Introduction 1. Introduction 2. Tasks and Rules of Border Routers 3. Implementations 4. Bidirectional Trees 4.1 Third Party Dependency 4.2 Method of
Week 4 / Paper 1. Open issues in Interdomain Routing: a survey
Week 4 / Paper 1 Open issues in Interdomain Routing: a survey Marcelo Yannuzzi, Xavier Masip-Bruin, Olivier Bonaventure IEEE Network, Nov.-Dec. 2005, vol. 19, no. 6, pp. 49 56 Main point There are many
Internet Firewall CSIS 4222. Packet Filtering. Internet Firewall. Examples. Spring 2011 CSIS 4222. net15 1. Routers can implement packet filtering
Internet Firewall CSIS 4222 A combination of hardware and software that isolates an organization s internal network from the Internet at large Ch 27: Internet Routing Ch 30: Packet filtering & firewalls
Internet inter-as routing: BGP
Internet inter-as routing: BGP BGP (Border Gateway Protocol): the de facto standard BGP provides each AS a means to: 1. Obtain subnet reachability information from neighboring ASs. 2. Propagate the reachability
Outline. EE 122: Interdomain Routing Protocol (BGP) BGP Routing. Internet is more complicated... Ion Stoica TAs: Junda Liu, DK Moon, David Zats
Outline EE 22: Interdomain Routing Protocol (BGP) Ion Stoica TAs: Junda Liu, DK Moon, David Zats http://inst.eecs.berkeley.edu/~ee22/fa9 (Materials with thanks to Vern Paxson, Jennifer Rexford, and colleagues
Active measurements: networks. Prof. Anja Feldmann, Ph.D. Dr. Nikolaos Chatzis Georgios Smaragdakis, Ph.D.
Active measurements: networks Prof. Anja Feldmann, Ph.D. Dr. Nikolaos Chatzis Georgios Smaragdakis, Ph.D. Outline Organization of Internet routing Types of domains Intra- and inter-domain routing Intra-domain
Lecture 18: Border Gateway Protocol"
Lecture 18: Border Gateway Protocol" CSE 123: Computer Networks Alex C. Snoeren HW 3 due Wednesday! Some figures courtesy Mike Freedman Lecture 18 Overview" Path-vector Routing Allows scalable, informed
Using the Border Gateway Protocol for Interdomain Routing
CHAPTER 12 Using the Border Gateway Protocol for Interdomain Routing The Border Gateway Protocol (BGP), defined in RFC 1771, provides loop-free interdomain routing between autonomous systems. (An autonomous
How To Understand Bg
Table of Contents BGP Case Studies...1 BGP4 Case Studies Section 1...3 Contents...3 Introduction...3 How Does BGP Work?...3 ebgp and ibgp...3 Enabling BGP Routing...4 Forming BGP Neighbors...4 BGP and
Based on Computer Networking, 4 th Edition by Kurose and Ross
Computer Networks Internet Routing Based on Computer Networking, 4 th Edition by Kurose and Ross Intra-AS Routing Also known as Interior Gateway Protocols (IGP) Most common Intra-AS routing protocols:
BGP Best Path Selection Algorithm
BGP Best Path Selection Algorithm Document ID: 13753 Contents Introduction Prerequisites Requirements Components Used Conventions Why Routers Ignore Paths How the Best Path Algorithm Works Example: BGP
OSPF Version 2 (RFC 2328) Describes Autonomous Systems (AS) topology. Propagated by flooding: Link State Advertisements (LSAs).
OSPF Version 2 (RFC 2328) Interior gateway protocol (IGP). Routers maintain link-state database. Describes Autonomous Systems (AS) topology. Propagated by flooding: Link State Advertisements (LSAs). Router
CS551 External v.s. Internal BGP
CS551 External v.s. Internal BGP Bill Cheng http://merlot.usc.edu/cs551-f12 1 Exterior vs. Interior World vs. me EGP vs. IGP Little control vs. complete administrative control BGP (and GGP, Hello, EGP)
Advanced Networking Routing: RIP, OSPF, Hierarchical routing, BGP
Advanced Networking Routing: RIP, OSPF, Hierarchical routing, BGP Renato Lo Cigno Routing Algorithms: One or Many? Is there a single routing protocol in the Internet? How can different protocols and algorithms
Routing with OSPF. Introduction
Routing with OSPF Introduction The capabilities of an internet are largely determined by its routing protocol. An internet's scalability, its ability to quickly route around failures, and the consumption
Data Networking and Architecture. Delegates should have some basic knowledge of Internet Protocol and Data Networking principles.
Data Networking and Architecture The course focuses on theoretical principles and practical implementation of selected Data Networking protocols and standards. Physical network architecture is described
GregSowell.com. Mikrotik Routing
Mikrotik Routing Static Dynamic Routing To Be Discussed RIP Quick Discussion OSPF BGP What is Routing Wikipedia has a very lengthy explanation http://en.wikipedia.org/wiki/routing In the context of this
BGP overview BGP operations BGP messages BGP decision algorithm BGP states
BGP overview BGP operations BGP messages BGP decision algorithm BGP states 1 BGP overview Currently in version 4. InterAS (or Interdomain) routing protocol for exchanging network reachability information
6.263 Data Communication Networks
6.6 Data Communication Networks Lecture : Internet Routing (some slides are taken from I. Stoica and N. Mckewon & T. Griffin) Dina Katabi dk@mit.edu www.nms.csail.mit.edu/~dina Books Text Book Data Communication
CSC458 Lecture 6. Homework #1 Grades. Inter-domain Routing IP Addressing. Administrivia. Midterm will Cover Following Topics
CSC458 Lecture 6 Inter-domain Routing IP Addressing Stefan Saroiu http://www.cs.toronto.edu/syslab/courses/csc458 University of Toronto at Mississauga Homework #1 Grades Fraction of Students 100 80 60
Can Forwarding Loops Appear when Activating ibgp Multipath Load Sharing?
Can Forwarding Loops Appear when Activating ibgp Multipath Load Sharing? Simon Balon and Guy Leduc Research Unit in Networking EECS Department- University of Liège (ULg) Institut Montefiore, B28 - B-4000
Border Gateway Protocol (BGP-4)
Vanguard Applications Ware IP and LAN Feature Protocols Border Gateway Protocol (BGP-4) Notice 2008 Vanguard Networks 25 Forbes Blvd Foxboro, MA 02035 Phone: (508) 964 6200 Fax: (508) 543 0237 All rights
Link-State Routing Protocols
Link-State Routing Protocols Malin Bornhager Halmstad University Session Number 2002, Svenska-CNAP Halmstad University 1 Objectives Link-state routing protocol Single-area OSPF concepts Single-area OSPF
DD2491 p1 2008. Inter-domain routing and BGP part I Olof Hagsand KTH/CSC
DD2491 p1 2008 Inter-domain routing and BGP part I Olof Hagsand KTH/CSC Inter-domain routing The objective of inter-domain routing is to bind together all the thousands of independent IP networks that
Computer Networks 1 (Mạng Máy Tính 1) Lectured by: Dr. Phạm Trần Vũ
Computer Networks 1 (Mạng Máy Tính 1) Lectured by: Dr. Phạm Trần Vũ 1 Lecture 7: Network Layer in the Internet Reference: Chapter 5 - Computer Networks, Andrew S. Tanenbaum, 4th Edition, Prentice Hall,
Administra0via. STP lab due Wednesday (in BE 301a!), 5/15 BGP quiz Thursday (remember required reading), 5/16
BGP Brad Smith Administra0via How are the labs going? This week STP quiz Thursday, 5/9 Next week STP lab due Wednesday (in BE 301a!), 5/15 BGP quiz Thursday (remember required reading), 5/16 Following
Bell Aliant. Business Internet Border Gateway Protocol Policy and Features Guidelines
Bell Aliant Business Internet Border Gateway Protocol Policy and Features Guidelines Effective 05/30/2006, Updated 1/30/2015 BGP Policy and Features Guidelines 1 Bell Aliant BGP Features Bell Aliant offers
Routing Protocols. Interconnected ASes. Hierarchical Routing. Hierarchical Routing
Routing Protocols scale: with 200 million destinations: can t store all dest s in routing tables! routing table exchange would swamp links! Hierarchical Routing Our routing study thus far - idealization
Dove siamo? Architecture of Dynamic Routing
Dove siamo? Algoritmi di routing Protocolli di routing» Intra dominio (IGP)» Inter dominio (EGP) Le slides relative a questo argomenti sono tratte da Interdomain Routing and The Border Gateway Protocol
IP Multicasting. Applications with multiple receivers
IP Multicasting Relates to Lab 10. It covers IP multicasting, including multicast addressing, IGMP, and multicast routing. 1 Applications with multiple receivers Many applications transmit the same data
BGP. 1. Internet Routing
BGP 1. Internet Routing (C) Herbert Haas 2005/03/11 1 Internet Routing Interior Gateway Protocols (IGPs) not suitable for Inter-ISP routing Technical metrics only No policy features Inter-ISP routing is
A Case Study Design of Border Gateway Routing Protocol Using Simulation Technologies
A Case Study Design of Border Gateway Routing Protocol Using Simulation Technologies Chengcheng Li School of Information Technology University of Cincinnati Cincinnati, OH 45221 Chengcheng.li@uc.edu ABSTRACT
IP Routing Configuring RIP, OSPF, BGP, and PBR
13 IP Routing Configuring RIP, OSPF, BGP, and PBR Contents Overview..................................................... 13-6 Routing Protocols.......................................... 13-6 Dynamic Routing
Chapter 49 Border Gateway Protocol version 4 (BGP-4)
Chapter 49 Border Gateway Protocol version 4 (BGP-4) Introduction... 1-3 Overview of BGP-4... 1-3 BGP Operation... 1-5 BGP Attributes... 1-6 BGP Route Selection... 1-8 Classless Inter-domain Routing (CIDR)
Network Level Multihoming and BGP Challenges
Network Level Multihoming and BGP Challenges Li Jia Helsinki University of Technology jili@cc.hut.fi Abstract Multihoming has been traditionally employed by enterprises and ISPs to improve network connectivity.
APNIC elearning: BGP Basics. Contact: training@apnic.net. erou03_v1.0
erou03_v1.0 APNIC elearning: BGP Basics Contact: training@apnic.net Overview What is BGP? BGP Features Path Vector Routing Protocol Peering and Transit BGP General Operation BGP Terminology BGP Attributes
Example: Advertised Distance (AD) Example: Feasible Distance (FD) Example: Successor and Feasible Successor Example: Successor and Feasible Successor
642-902 Route: Implementing Cisco IP Routing Course Introduction Course Introduction Module 01 - Planning Routing Services Lesson: Assessing Complex Enterprise Network Requirements Cisco Enterprise Architectures
Internet inter-as routing: BGP
Internet inter-as routing: BGP BGP (Border Gateway Protocol): the de facto standard BGP provides each AS a means to: 1. Obtain subnet reachability information from neighboring ASs. 2. Propagate the reachability
Introduction to Routing
Introduction to Routing How traffic flows on the Internet Philip Smith pfs@cisco.com RIPE NCC Regional Meeting, Moscow, 16-18 18 June 2004 1 Abstract Presentation introduces some of the terminologies used,
BGP Routing. Course Description. Students Will Learn. Target Audience. Hands-On
Hands-On Course Description This Hands-On course on (Border Gateway Protocol), from the basics of how it works through to advanced issues such as route reflectors, policy, filtering, route selection and
100-101: Interconnecting Cisco Networking Devices Part 1 v2.0 (ICND1)
100-101: Interconnecting Cisco Networking Devices Part 1 v2.0 (ICND1) Course Overview This course provides students with the knowledge and skills to implement and support a small switched and routed network.
Introduction to Dynamic Routing Protocols
CHAPTER 3 Introduction to Dynamic Routing Protocols Objectives Upon completion of this chapter, you should be able to answer the following questions: Can you describe the role of dynamic routing protocols
Internet Control Message Protocol (ICMP)
SFWR 4C03: Computer Networks & Computer Security Jan 31-Feb 4, 2005 Lecturer: Kartik Krishnan Lecture 13-16 Internet Control Message Protocol (ICMP) The operation of the Internet is closely monitored by
Interdomain Routing. Outline
Interdomain Routing David Andersen 15-744 Spring 2007 Carnegie Mellon University Outline What does the Internet look like? Relationships between providers Enforced by: Export filters and import ranking
Final Exam. Route Computation: One reason why link state routing is preferable to distance vector style routing.
UCSD CSE CS 123 Final Exam Computer Networks Directions: Write your name on the exam. Write something for every question. You will get some points if you attempt a solution but nothing for a blank sheet
Border Gateway Protocol, Route Manipulation, and IP Multicast
C H A P T E R12 Border Gateway Protocol, Route Manipulation, and IP Multicast This chapter covers the Border Gateway Protocol (BGP), which is used to exchange routes between autonomous systems. It is most
Border Gateway Protocol BGP4 (2)
Border Gateway Protocol BGP4 (2) Professor Richard Harris School of Engineering and Advanced Technology (SEAT) Presentation Outline Border Gateway Protocol - Continued Computer Networks - 1/2 Learning
CLASSLESS INTER DOMAIN ROUTING - CIDR
CLASSLESS INTER DOMAIN ROUTING - CIDR Marko Luoma Helsinki University of Technology Laboratory of Telecommunications Technology Marko.Luoma@hut.fi ABSTRACT As the Internet evolved and become more familiar
OSPF Routing Protocol
OSPF Routing Protocol Contents Introduction Network Architecture Campus Design Architecture Building Block Design Server Farm Design Core Block Design WAN Design Architecture Protocol Design Campus Design
Introduction to TCP/IP
Introduction to TCP/IP Raj Jain The Ohio State University Columbus, OH 43210 Nayna Networks Milpitas, CA 95035 Email: Jain@ACM.Org http://www.cis.ohio-state.edu/~jain/ 1 Overview! Internetworking Protocol
Configuring BGP. Cisco s BGP Implementation
Configuring BGP This chapter describes how to configure Border Gateway Protocol (BGP). For a complete description of the BGP commands in this chapter, refer to the BGP s chapter of the Network Protocols
O 10.16.1.0/27 [110/129] via 192.168.1.5, 00:00:05, Serial0/0/1
![O 10.16.1.0/27 [110/129] via 192.168.1.5, 00:00:05, Serial0/0/1](/thumbs/39/20242582.jpg "O 10.16.1.0/27 [110/129] via 192.168.1.5, 00:00:05, Serial0/0/1")
1 Which two statements are true regarding the advantages of the use of static routes? (Choose increased security reduced effort in configuring routes the administrator maintains control over routing easier
Load balancing and traffic control in BGP
DD2491 p2 2011 Load balancing and traffic control in BGP Olof Hagsand KTH CSC 1 Issues in load balancing Load balancing: spread traffic on several paths instead of a single. Why? Use resources better Can
--BGP 4 White Paper Ver.1.0-- BGP-4 in Vanguard Routers
BGP-4 in Vanguard Routers 1 Table of Contents Introduction to BGP... 6 BGP terminology... 6 AS (Autonomous system):... 6 AS connection:... 6 BGP Speaker:... 6 BGP Neighbor/Peer:... 7 BGP Session:... 7
Computer Networks Administration Help Manual Sana Saadaoui Jemai Oliver Wellnitz
Technische Universität Braunschweig Institut für Betriebssysteme und Rechnerverbund Computer Networks Administration Help Manual Sana Saadaoui Jemai Oliver Wellnitz Braunschweig, 27 th March 2007 Contents
- Multicast - Types of packets
1 Types of packets - Multicast - Three types of packets can exist on an IPv4 network: Unicast A packet sent from one host to only one other host. A hub will forward a unicast out all ports. If a switch
Security in Internet Routing Protocols
Security in Internet Routing Protocols Niklas Alberth nikal407@student.liu.se Rickard von Essen ricvo248@student.liu.se Linköping Institute of Technology IDA Department of Computer and Information Science
Course Overview: Learn the essential skills needed to set up, configure, support, and troubleshoot your TCP/IP-based network.
Course Name: TCP/IP Networking Course Overview: Learn the essential skills needed to set up, configure, support, and troubleshoot your TCP/IP-based network. TCP/IP is the globally accepted group of protocols
BGP Terminology, Concepts, and Operation. Chapter 6 2007 2010, Cisco Systems, Inc. All rights reserved. Cisco Public
BGP Terminology, Concepts, and Operation 1 IGP versus EGP Interior gateway protocol (IGP) A routing protocol operating within an Autonomous System (AS). RIP, OSPF, and EIGRP are IGPs. Exterior gateway
Lesson 5-3: Border Gateway Protocol
Unit 5: Intradomain and Interdomain Protocols Lesson 5-3: Gateway Protocol At a Glance The Gateway Protocol (BGP) is an interdomain routing protocol used in TCP/IP internetworks. BGP was created to allow
Understanding Route Aggregation in BGP
Understanding Route Aggregation in BGP Document ID: 5441 Contents Introduction Prerequisites Requirements Components Used Conventions Network Diagram Aggregate Without the as set Argument Aggregate with
Ethernet (LAN switching)
Ethernet ( switching) 1 Outline Interconnection devices Bridges/ switches vs. Routers Bridges Learning Bridges Transparent bridges 2 1 Bridges/ switches Interconnect multiple, possibly with different type
ITRI CCL. IP Routing Primer. Paul C. Huang, Ph.D. ITRI / CCL / N300. CCL/N300; Paul Huang 1999/6/2 1
IP Routing Primer Paul C. Huang, Ph.D. ITRI / / N300 /N300; Paul Huang 1999/6/2 1 Basic Addressing / Subnetting Class A 0 Network Host Host Host 127 networks / 16,777,216 hosts Class A natural mask 255.0.0.0
Routing Protocols (RIP, OSPF, BGP)
Chapter 13 Routing Protocols (RIP, OSPF, BGP) INTERIOR AND EXTERIOR ROUTING RIP OSPF BGP 1 The McGraw-Hill Companies, Inc., 2000 1 Introduction Packets may pass through several networks on their way to
IMPLEMENTING CISCO IP ROUTING V2.0 (ROUTE)
IMPLEMENTING CISCO IP ROUTING V2.0 (ROUTE) COURSE OVERVIEW: Implementing Cisco IP Routing (ROUTE) v2.0 is an instructor-led five day training course developed to help students prepare for Cisco CCNP _
basic BGP in Huawei CLI
basic BGP in Huawei CLI BGP stands for Border Gateway Protocol. It is widely used among Internet Service Providers to make core routing decisions on the Internet. The current BGP version is BGP-4 defined
Course Contents CCNP (CISco certified network professional)
Course Contents CCNP (CISco certified network professional) CCNP Route (642-902) EIGRP Chapter: EIGRP Overview and Neighbor Relationships EIGRP Neighborships Neighborship over WANs EIGRP Topology, Routes,
Chapter 4. Distance Vector Routing Protocols
Chapter 4 Distance Vector Routing Protocols CCNA2-1 Chapter 4 Note for Instructors These presentations are the result of a collaboration among the instructors at St. Clair College in Windsor, Ontario.
- IGRP - IGRP v1.22 Aaron Balchunas
1 - GRP - GRP (nterior Gateway Routing Protocol) GRP is a isco-proprietary Distance-Vector protocol, designed to be more scalable than RP, its standardized counterpart. GRP adheres to the following Distance-Vector
Configuring RIP. Overview. Routing Update Process CHAPTER
CHAPTER 22 This chapter describes how to configure the ASA to route data, perform authentication, and redistribute routing information, using the Routing Information Protocol (RIP) routing protocol. This
Administrative Distance
RIP is a distance vector routing protocol. It shares routing information through the local broadcast in every 30 seconds. In this tutorial we will explain RIP routing fundamentals with examples such as
BGP: Border Gateway Protocol
LAB 8 BGP: Border Gateway Protocol An Interdomain Routing Protocol OBJECTIVES The objective of this lab is to simulate and study the basic features of an interdomain routing protocol called Border Gateway
Routing Protocol - BGP
Routing Protocol - BGP BGP Enterprise Network BGP ISP AS 3000 AS 2000 BGP is using between Autonomous Systems BGP(cont.) RFC 1771(BGPv4) Support CIDR Transfer the AS information to reach destination Using
Table of Contents. Cisco How Does Load Balancing Work?
Table of Contents How Does Load Balancing Work?...1 Document ID: 5212...1 Introduction...1 Prerequisites...1 Requirements...1 Components Used...1 Conventions...1 Load Balancing...1 Per Destination and
Interconnecting Cisco Networking Devices Part 2
Interconnecting Cisco Networking Devices Part 2 Course Number: ICND2 Length: 5 Day(s) Certification Exam This course will help you prepare for the following exam: 640 816: ICND2 Course Overview This course
Protocol Specification & Design. The Internet and its Protocols. Course Outline (trivia) Introduction to the Subject Teaching Methods
The Internet and its Protocols Protocol Specification & Design Robert Elz kre@munnari.oz.au kre@coe.psu.ac.th http://fivedots.coe.psu.ac.th/~kre/ Friday: 13:30-15:00 (Rm: 101)???: xx:x0-xx:x0 (Rm:???)
> Border Gateway Protocol (BGP-4) Technical Configuration Guide. Ethernet Routing Switch. Engineering
Ethernet Routing Switch 8600 Engineering > Border Gateway Protocol (BGP-4) Technical Configuration Guide Enterprise Solution Engineering Document Date: November, 2007 Document Number: NN48500-538 Document
Load balancing and traffic control in BGP
DD2491 p2 2009/2010 Load balancing and traffic control in BGP Olof Hagsand KTH /CSC 1 Issues in load balancing Load balancing: spread traffic on several paths instead of a single. Why? Use resources better
BGP: Frequently Asked Questions
BGP: Frequently Asked Questions Document ID: 5816 Contents Introduction How do I configure BGP? How do I configure BGP with the use of a loopback address? What is the order of preference of attributes
LAB FOUR Dynamic Routing Protocols
LAB FOUR Dynamic Routing Protocols In the previous lab, you learned how to configure routing table entries manually. This was referred to as static routing. The topic of Lab 4 is dynamic routing, where
Border Gateway Protocols
Paper 106, ENG 104 Border Gateway Protocols Sadeta Krijestorac, Marc Beck, Jonathan Bagby Morehead State University University of Louisville Florida Atlanic University s.krijestor@moreheadstate.edu marcbeck1982@yahoo.com
HP Networking BGP and MPLS technology training
Course overview HP Networking BGP and MPLS technology training (HL046_00429577) The HP Networking BGP and MPLS technology training provides networking professionals the knowledge necessary for designing,
Faculty of Engineering Computer Engineering Department Islamic University of Gaza 2012. Network Chapter# 19 INTERNETWORK OPERATION
Faculty of Engineering Computer Engineering Department Islamic University of Gaza 2012 Network Chapter# 19 INTERNETWORK OPERATION Review Questions ٢ Network Chapter# 19 INTERNETWORK OPERATION 19.1 List
Configuration Examples. D-Link Switches L3 Features and Examples IP Multicast Routing
Configuration Examples D-Link Switches L3 Features and Examples IP Multicast Routing DVMRP + IGMP + IGMP Snooping PIM-DM + IGMP + IGMP Snooping RIP + Multicast routing Where is IGMP snooping located Multicast
Network Security. Mobin Javed. October 5, 2011
Network Security Mobin Javed October 5, 2011 In this class, we mainly had discussion on threat models w.r.t the class reading, BGP security and defenses against TCP connection hijacking attacks. 1 Takeaways
Understanding Virtual Router and Virtual Systems
Understanding Virtual Router and Virtual Systems PAN- OS 6.0 Humair Ali Professional Services Content Table of Contents VIRTUAL ROUTER... 5 CONNECTED... 8 STATIC ROUTING... 9 OSPF... 11 BGP... 17 IMPORT