CCNA3 Chapter 7 - STP

Designing and Managing High-Stakes Infrastructure:

#OETC18http://marc.e2p.org/portfolio

Who's This?

What's a SWOCA?

Cat 2 Erate

Established Bandwidth Standards

SWOCA's Bandwidth Forecast Model *

Bandwidth Growth Rate

High Stakes Networking

Wiring for Wireless

Wave 2 AC

The Backbone

Monitoring Wifi & Backbone

AA– Music/Psychology

State University of New York

BA– Communication Arts

Gannon University

MBA – Business Administration

Indiana Wesleyan University

20+ Years Business Leadership

12 Years Sr. Executive Level

HealthCare , Media, Education

Network Services Manager

-SWOCA

Visiting Professor –Business & IT

- DeVry University

- Keller Graduate School of Management

Outstanding Educator 2013

Cincy Magazine

Network Services Manager – SWOCAVisiting Professor – DeVry University / Keller GSOMAuthor – CIO Magazine

marc@swoca.net

Twitter, Linked In jmarchopkins

Presentation History: http://marc.e2p.org

South West Ohio Computer Association

34 Public Member Districts

◦ 3 County Educational Service Centers

◦ 4 Regional JVSD

8 Non-Public Districts

Largest Single Site ITC

◦ (140,000 Students)

Butler County ESC

Butler Technology and Career

Development Schools

Carlisle Local SD

Clinton-Massie Local SD

College Corner Local SD

Eaton Community SD

Edgewood SD

Fairfield City SD

Franklin City SD

Great Oaks Career Campuses

Hamilton City SD

Kings Local SD

Lakota Local SD

Lebanon City SD

Little Miami SD

Loveland SD

Madison SD

Mason City SD

Miami Valley CTC

Middletown City SD

Monroe Local SD

National Trail SD

New Miami SD

Northwest Local SD

Norwood City SD

Preble County ESC

Preble Shawnee SD

Princeton SD

Ross Local SD

Springboro Community SD

Talawanda SD

Twin Valley Community Local SD

Tri County North Local SD

Warren Career Center

Warren County ESC

Wayne Local SD

5 Year Budget = $150 per Student

Must be allocated by Building

◦ Internal Connections

◦ Managed Internal Broadband Services

◦ Basic Maintenance of Internal Connections

WiFi

Core & Access Switches

Cabling◦ Including Fiber INSIDE a building.

20 to 85%. District Level Discount only

The Category 2 budget system was created as a Five-year pilot program.

This is year 4.

There is no guarantee as to if or how Category 2 funds will be funded, allocated, and prioritized beyond FY19

22

February 2018

2015 Ohio School Design Manual (OSDM)

Requirement added for CAT 6a cable utilized for the wireless access points to be "shielded" cable. (Ref.: 8500.1.02.C.2.b and Sections 271513 and 272133).

Updated network electronics requirements for all switch ports to be GB, POE+ and comply with current industry standard of 802.11ac. (Ref: 8500.1.02.C.3 and Section 272100 and 272133).

Dual 10 GB to the Switch Closet / Stack

Cat 6a STP for each access point

30 watts POE for EVERY Port

Non Blocking◦ Enough upstream bandwidth for every port

2017-2018

Goal 1: Ensuring schools and libraries have affordable access to sufficient high-speed broadband:◦ To help measure and set benchmarks for this goal

the FCC proposes the following.

For schools:

◦ The FCC adopts the State Education Technology Directors Association’s (SETDA) bandwidth target of 1 Gbps per 1,000 students and staff in the long term (¶34).

(SETDA defines “long-term” as 2017-18).

110,000 Students

12.24 gbs Peak Jan 2018

11,430 / 110,000 = 0.1112727 Mbps

Average: 111 kbps/ ADM

839,400 Students

76.05 gbs Peak Jan 2018

76,050 / 839,400 = 0.0906 Mbps

Average: 90.6 kbps/ ADM

11,000 Students

Suburban District

Deploying

1.45 gb/s Average

◦ 140.8 kbps / Student (2018)

◦ 104 kbps / Student (2017)

◦ 63 kbps / Student (2016)

4,598 Students

Semi-Rural District

Heavy 1:1 Deployments

680 mb/s

◦ 148 kbps / Student (2018)

◦ 109 kbps / Student (2017)

◦ 77 kbps / Student (2016)

2158 Students Rural District Chromebook Heavy, moderate 1:1

241 mbps

111 kbps / Student (2018) 175 kbps / Student (2017) 104 kbps / Student (2016)

Student ADM (Grades 5-12) 70%

Google Apps for Education

District SIZE 5%

District Sponsored 1:1 15%

Internet filter Culture 5%

Home Internet Saturation

ADM * 110 kbps

◦ GAFE: +10 %

◦ Office 365 (Staff Docs) + 20%

◦ <3,500 Students +10%

◦ District 1:1

+2% per grade 5-8

+4% per grade 9-12

“Open” Internet policy: +10%

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16

17

18

3.45 gbs Feb 2015 6.21 gbs Jan 2016

6.21 gbs Jan 2016 9.74 gbs Jan 2017

Just not yet.

G-Suite is now the norm

G-Suite schools use less bandwidth then other 1:1 devices

Most schools use LESS bandwidth for Testing then daily instruction

Don’t deploy 800 Chromebooks in one day.

802.11a up to 54 Mbps in 5 Ghz Band

802.11b up to 11 Mbps in 2.4 Ghz Band.

802.11g up to 54 Mbps in 2.4 Ghz Band.

802.11n up to 600 Mbps via MIMO◦ Technically supported in 2.4 Ghz.

802.11ac 3.47 Gbps via MU-MIMO ◦ Supported in 5 Ghz Band.

802.11ac Wave 2 6.93 Gbps via MU-MIMO

160 MhZ Channels are not practical in K-12◦ 160 MhZ = Only 2 possible channels

◦ 80 MhZ = 4 possible channels

◦ 40 MhZ = 9 possible channels

Due to Density issues, 40 MhZ should be the maximum planned deployment.

80 MhZ channels do not permit sufficient overlap of Wifi Channels.

◦ Recommended Bandwidth for High Density Deployment

◦ 40 MHZ = 9 channels

About 125 Mbps/AP Max (Practical AC Wave 1)

About 240 Mbps / AP Max (Practical Wave 2)

240 / 4.3 = 55 Devices per AP

Low cost devices don’t have high Cost WiFi Chips

The average portable device is in use for 3-5 years

◦ Or Longer…..

How long will you have your Wireless Deployed?

Cat 2 Funding may be disappearing

What is your average/Max Teacher Class size?

What is your Standard 1:1 Device?

If Cat 5e is already run, running new cables to your AP’s is not likely to have a positive impact for 802.11ac.

If running NEW cables, Cat 6a STP is worth the investment.

◦ STP helps shield the Data Path from the RF.

◦ Reduces Errors in data transmission

OM1/2

10GBase-LRM will reach up to 220m over standard multimode fiber, using a single laser operating at 1310nm.

A Mode Conditioning patch cable is recommended.

Without Mode Conditioning, 10 GB will link, but may not be stable.

Orange patch cables may not mean 62.5 micron (OM1/OM2 Fiber) is installed.

Check the Jacket Labeling to confirm.

Total Length is Critical

Quality of Fiber Splices

Optical Time-Domain Reflectometer

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Interface Up/Down

Bandwidth Metrics

Error Rates

Hard Drive Statistics

Access Points and Statistics

Anything the Vendor Lets you see:

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Sunday, February 11, 2018 77

Sunday, February 11, 2018 78

J. Marc Hopkins

Network Services Manager – SWOCA

Visiting Professor – DeVry University / Keller GSOM

Author – CIO Magazine

marc@swoca.net

Twitter, Linked In jmarchopkins

Presentation History: http://marc.e2p.org/Portfolio