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Internet2: A Tutorial Part 2 of 4. 17 th Brazilian Symposium on Computer Networks Paul Love, Internet2 Chair, I2 Topology WG epl@internet2.edu. Abilene. Overview. Abilene Background Review of Abilene Architecture 1999 Schedule Launched Network First Half 1999 Expectations

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Internet2 a tutorial part 2 of 4

Internet2: A TutorialPart 2 of 4

17th Brazilian Symposium

on

Computer Networks

Paul Love, Internet2

Chair, I2 Topology WG

epl@internet2.edu



Overview
Overview

  • Abilene Background

  • Review of Abilene Architecture

  • 1999 Schedule

  • Launched Network

  • First Half 1999 Expectations

  • Engineering Issues

  • Additional information

    http://www.internet2.edu/abilene/


Abilene objectives
Abilene: Objectives

  • Provide high-quality, widely available Interconnect among participating gigaPoPs/universities

  • IP as the bearer service

  • Goals

    • Reliability

    • Functionality

    • Latency

    • Capacity

SBRC99 Salvador, Bahia, Brazil


Abilene objectives cont
Abilene: Objectives cont

  • Additional, separate networks to

    • Test advanced network capabilities

      • Final proposals being evaluated this month

    • For network research - still TBD

  • Support advanced functionality as it evolves

    • Multicast, QoS, IPv6

SBRC99 Salvador, Bahia, Brazil


Abilene team
Abilene Team

  • Overall direction by Internet2

  • Qwest

  • Cisco

  • Nortel (Northern Telecom)

  • Indiana University

  • National Center for Network Engineering

  • Open to other contributors

  • Collaborate with related efforts in network or applications research

SBRC99 Salvador, Bahia, Brazil


Key attributes
Key Attributes

  • IP over Sonet initially

  • Qwest OC-48 Sonet capacity and collocation sites

  • Nortel OC-192 Sonet equipment

  • Cisco GSR 12000 routers including support for

    • QoS

    • Native multicast

SBRC99 Salvador, Bahia, Brazil


Abilene and other networks
Abilene and Other Networks

  • Important for Abilene to interconnect with other high performance networks

    • First I2 backbone: vBNS

    • Federal Agency NGI networks (ESnet, NREN, DREN, ...)

    • Non-US Research & Education Networks

      • CANARIE, NORDUnet, SURFnet, TransPac, etc

    • Peering in hand or plans in process

      • vBNS, ESnet, CANARIE, DREN, NREN, NORDUnet, SURFnet, etc

  • Advanced functionality across I2 & our peers

    • Native multicast

    • QoS across multiple interconnected networks

*RSN

SBRC99 Salvador, Bahia, Brazil


Broader internet2 ngi and international advanced nets
Broader Internet2, NGI, and International Advanced Nets

Initial NGIX sites

Possible CA*net3 peering sites

StarTap

StarTap Plus

SBRC99 Salvador, Bahia, Brazil


Notes on i2 ngi and international interconnections
Notes on I2, NGI, and International Interconnections

  • NGIXes are the foundation for peering I2 backbones & with NGI nets

    • Abilene will connect with OC12

  • StarTap is the foundation of international interconnections - universal solution

  • New York is first example of StarTap Plus

    • Minimize latency

    • Provide redundancy

    • Abilene doesn’t provide transit

SBRC99 Salvador, Bahia, Brazil


Example new york city
Example: New York City

  • SURFnet has OC-3 circuits and routers at the Teleglobe POP at 60 Hudson Street

  • NORDUnet the same

  • And each connects from New York to the StarTap with DS3

  • Details on the next slides

SBRC99 Salvador, Bahia, Brazil


Internet2 a tutorial part 2 of 4

New York City

Europe

ISP

SURFnet

NORDUnet

Teleglobe

Qwest

Abilene

Chicago

SBRC99 Salvador, Bahia, Brazil


Internet2 a tutorial part 2 of 4

New York City

Europe

ISP

SURFnet

NORDUnet

Teleglobe

Qwest

Abilene

Chicago

SBRC99 Salvador, Bahia, Brazil


Ca net3

St. John’s

Calgary

Regina

Winnipeg

Charlottetown

Fredericton

Montreal

Halifax

Vancouver

Ottawa

Toronto

Chicago

CA*net3

SBRC99 Salvador, Bahia, Brazil


Abilene noc
Abilene NOC

  • Located at Indiana University

  • Publish statistics & online information resources

  • Coverage can be looked at in three broad areas

    • Administration

    • Engineering

    • Operations

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Administration
Administration

  • Security Management

  • Communications

  • Overall Management and Coordination

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Engineering
Engineering

  • Configuration

  • Testing

  • Data collection

  • Traffic Analysis

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Operations
Operations

  • 24x7 Monitoring

  • Reporting

  • Change and Problem management

  • Information base

  • Single point of contact

    • Network problems

    • Abilene connection process

SBRC99 Salvador, Bahia, Brazil



For more information on the abilene noc
For more informationon the Abilene NOC

  • www.abilene.iu.edu

  • Abilene traffic map at

    http://hydra.uits.iu.edu/~abilene/traffic

SBRC99 Salvador, Bahia, Brazil


Couple of notes on costs
Couple of Notes on Costs

Cost recovery on UCAID’s part

Set each year for following year

Participant institution

Connector - based on BW(can be connector and not participant)

nb There is also a small Qwest access fee

Long-distance part of access line is considered part of the ‘backbone’

Thus, number/location of core nodes does not affect costs borne by connecting sites

SBRC99 Salvador, Bahia, Brazil


Qwest fiber network http www qwest com network netmaps html
Qwest Fiber Networkhttp//www.qwest.com/network/netmaps.html

SBRC99 Salvador, Bahia, Brazil


Schedule part 1
Schedule - part 1

  • Design work: Mar-98 and ongoing

  • Rack design: May-98 to Jul-98

  • Initial assembly / testing: Jul/Aug-98

  • Router Nodes / Interior Lines: Jul/Aug-98

  • Demo network installed: Sep-98

  • Remainder installed: Nov/Dec-98

  • Production begins: 29-Jan-99

  • Launch Event in DC: 24-Feb-99

SBRC99 Salvador, Bahia, Brazil


Abilene sep 98 demo network
Abilene Sep 98 Demo Network

Seattle

Eugene

Minneapolis

Westfield

Boston

New York

New Haven

Cleveland

Newark

Detroit

Trenton

Salt Lake City

Philadelphia

Wilmington

Pittsburgh

Lincoln

Columbus

Sacramento

Indianapolis

Washington

Oakland

Denver

Kansas City

Raleigh

Albuquerque

Oklahoma City

Nashville

Los Angeles

Atlanta

Anaheim

Phoenix

Dallas

New Orleans

Houston

Router Node

Miami

Access Node

Star Tap

SBRC99 Salvador, Bahia, Brazil


Abilene architecture core
Abilene Architecture: Core

  • Router Nodes located at Qwest PoPs

    • Cisco 12008 GSR

    • ICS Unix PC: IPPM and Network Mgmt

    • Cisco 3640 Remote Access for NOC

    • 100BaseT LAN and ‘console port’ access

    • Remote 48v DC Power Controllers

  • Initially, ten Router Nodes

    • Seattle, Sacramento, Los Angeles, Denver, Kansas City, Houston, Indianapolis, Cleveland, New York City, Atlanta

    • And, coming this Fall - Washington, DC

  • Interior lines connect core nodes

    • OC-12 and OC-48 Sonet

    • IP-over-Sonet interfaces

SBRC99 Salvador, Bahia, Brazil



Abilene architecture access
Abilene Architecture: Access

  • Access Nodes

    • Located at Qwest PoPs

    • Sonet: Connects Local to Long-distance

  • Currently about 135 Access Nodes:

    • This list grows as the Qwest Sonet plant grows

  • Access lines connect from core node to gigaPoP or member

    • IP-over-Sonet or IP-over-ATM possible

    • OC-3 and OC-12 typical

    • Others as possible & appropriate

      • GigE, ...

SBRC99 Salvador, Bahia, Brazil


Abilene some access nodes
Abilene + some Access Nodes

Seattle

Boston

Eugene

Minneapolis

Westfield

New York

New Haven

Cleveland

Newark

Detroit

Trenton

Salt Lake City

Chicago

Philadelphia

Wilmington

Pittsburgh

Lincoln

Columbus

Sacramento

Indianapolis

Washington

Oakland

Denver

Kansas City

Raleigh

Albuquerque

Oklahoma City

Nashville

Los Angeles

Atlanta

Anaheim

Phoenix

Dallas

New Orleans

Houston

Miami

Router Node

Access Node

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Launch network
Launch Network

  • Some Sonet Rings not completed

  • Mix of OC-12 and OC-48 interior Lines

  • NOC fully operational

  • Some Access Lines not completed

  • Connections at two NGIXes

    • NGIX/Central (OC3)

    • NGIX/West (OC12)

  • OC12 into Union Station for demos

SBRC99 Salvador, Bahia, Brazil


Schedule part 2
Schedule, part 2

  • Production began: 29-Jan-99

  • Launch Event in DC: 24-Feb-99

  • Member Meeting: 28-Apr-99

  • Native Multicast deployed in core: Jun-99

  • Completion of OC-48 Core: TBD

  • Addition of DC Router Node: 3Q99

  • Seattle Member Meeting: 11/15-Oct-99

SBRC99 Salvador, Bahia, Brazil


First half 1999 expectations
First Half 1999 Expectations

  • Measurements of Delay, Loss, Utilization

  • Gradual

    • Increase in OC-48 Interior Lines

    • Completion of (Qwest) Sonet Rings

    • Accesss to measurements and other engineering data

  • Participation in QBone

  • Upgrade of NGIX/Central to OC12

  • Native Multicast

SBRC99 Salvador, Bahia, Brazil


Second half 1999 expectations
Second Half 1999 Expectations

  • Gigabit Ethernet connection(s)?

  • OC48 connection?

  • Connection to NGIX/East

    • Somewhere in Washington, DC, area

    • OC12

SBRC99 Salvador, Bahia, Brazil


Abilene core current

Seattle

New York

Cleveland

Sacramento

Indianapolis

Denver

Kansas City

Los Angeles

Atlanta

Houston

Abilene Core: Current

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Abilene current plus on order

OC12 still being installed

OC12

OC48

OC12

Abilene: Current plus On Order

Seattle

New York

Cleveland

Sacramento

Indianapolis

Denver

Kansas City

Los Angeles

Atlanta

Houston

OC3

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Outline of engineering issues
Outline of Engineering Issues

Routing:

OSPF, BGP4, Routing Arbiter Database

Multicast

PIM-Sparse Mode, MBGP, MSDP

Measurements

Surveyor: One-way delay and loss

Traffic utilization

End to end flows with gigaPoP help

OC3MON -- passive measurements

QoS - QBone

SBRC99 Salvador, Bahia, Brazil



Acknowledgments
Acknowledgments

  • Steve Corbató - University of Washington & Pacific/Northwest Gigapop

  • Ron Hutchins - Georgia Institute of Technology & Southern CrossRoads Gigapop

  • Ken Lindahl - University of California, Berkeley

  • Rick Summerhill - Executive Director, Great Plains Network

  • David Wasley - CENIC Director of Projects/CalREN-2 Gigapop

SBRC99 Salvador, Bahia, Brazil


Gigapop idea
GigaPoP Idea

  • From George Strawn of NSF - Predates Internet2

  • Idea was one of the catalysts for Internet2

  • Aggregation point

  • Economies of scale

    • Member sites

    • Value added services shared by members

  • Not limited to university/I2 members

  • (High-speed) local traffic stays local

  • Attached networks

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Gigapops
GigaPoPs

  • Variety of services and styles

    • Technical and organizational differences

    • Mixture of technologies

  • Some things must be the same

    • IP as a common bearer service

    • Inter-GigaPoP routing policy and design

    • Measurement

    • Trouble tickets among network operation centers

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Robust model

Customer links

Robust Model

Backbone nodes

Peering connection

Aggregation points/

GigaPoPs

Agency Networks

SBRC99 Salvador, Bahia, Brazil

With thanks to Ron Hutchins


Gigapops can be hierarchical
GigaPoPs can be Hierarchical

UNC

Vanderbilt

Duke

NCSU

MCNC

UAH

UAB

SoX

GigaPoP

GSU

GCATT

UA

Peachnet

GT

vBNS

FSU, UF,Miami

SBRC99 Salvador, Bahia, Brazil

With thanks to Ron Hutchins


Internet2 gigapops as of november 1997
Internet2 GigaPoPsAs of November 1997

Denotes GigaPoP

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Internet2 gigapops as of 19 may 1999
Internet2 GigaPoPsAs of 19 May 1999

Denotes GigaPoP

SBRC99 Salvador, Bahia, Brazil


Gigapops what flavors do they come in
GigaPoPs - What Flavors Do They Come In

  • Two broad sets of choices

    • Level

    • Topology

  • Level

    • Layer 1 (optical)

    • Layer 2 (usually ATM)

    • Layer 3

  • Topology

    • Star - aka Gigapoint

    • Distributed

    • Combination - figure “8”

SBRC99 Salvador, Bahia, Brazil


Star or gigapoint

Member links

ISP/HPNSP links

Star or Gigapoint

  • Advantages

    • No internal transit issues

  • Disadvantages

    • Longer backhauls for both members & service providers

SBRC99 Salvador, Bahia, Brazil


Distributed

Member links

Intra-GP links

ISP/HPNSP links

Distributed

  • Advantages

    • Optimize backhauls

    • Take advantage existing connections

    • Politics

  • Disadvantages

    • BW between nodes can be bottleneck

SBRC99 Salvador, Bahia, Brazil


Combination

Member links

Intra-GP link

ISP/HPNSP links

Combination

  • Advantages

    • Optimize backhauls

    • Take advantage existing connections

    • Politics

    • Minimize internal transit

  • Disadvantages

    • BW between hubs can be bottleneck

    • Longer backhauls

SBRC99 Salvador, Bahia, Brazil


Example non atm level 2 gigapop

Example - Non-ATMLevel 2 GigaPoP


P nw gigapop design
P/NW GigaPoP Design

SBRC99 Salvador, Bahia, Brazil

With thanks to Steve Corbató



Great plains network
Great Plains Network

  • Participating States

    • N & S Dakota

    • Nebraska

    • Kansas

    • Oklahoma

    • Missouri

    • Arkansas

  • Topology

SBRC99 Salvador, Bahia, Brazil

With thanks to Rick Summerhill



Calren 2 topology plan 5 98
CalREN-2 Topology Plan (5/98)

SBRC99 Salvador, Bahia, Brazil

With thanks to David Wasley


Calren 2 topology
CalREN-2 Topology

SBRC99 Salvador, Bahia, Brazil

With thanks to Ken Lindahl


Calren 2 north physical topology
CalREN-2 North: Physical Topology

SBRC99 Salvador, Bahia, Brazil

With thanks to Ken Lindahl


Calren 2 north logical topology
CalREN-2 North: Logical Topology

SBRC99 Salvador, Bahia, Brazil

With thanks to Ken Lindahl



Sox layer 3 example

R

R

R

R

R

R

R

R

vBNS

R

R

R

R

R

R

R

R

ISP

ISP

SoX: Layer 3 Example

Georgia GigaPoP

Logical Layer 3 Diagram

Peering using BGP

SBRC99 Salvador, Bahia, Brazil

With thanks to Ron Hutchins


Sox layer 2 example

Router

A

vBNS

Router

Router

Router

Router

ISP

SoX: Layer 2 Example

PNNI

vBNS

PNNI

“External Gigapop”

Layer 2 diagram

GigaPOP Switch

PNNI

GT Network

B

PNNI

PNNI

Dept. Net

Georgia GigaPOP

SBRC99 Salvador, Bahia, Brazil

With thanks to Ron Hutchins


Combined services

*

Combined Services

ISP 1

*

HPNSP

ABR/UBR PVC

Burst to Full OC-3

*

SoX

Gigapop

ISP

2

Campus

Network

*

*

Campus 1

VBR PVC

Preempt to 10Mb/s

vBNS

ISP

ATM “Pipe”

ISP 3

*

Campus 2

4

3

With thanks to Ron Hutchins

SBRC99 Salvador, Bahia, Brazil


The end
The End

SBRC99 Salvador, Bahia, Brazil