James Kahkoska • Reluctant CTOjames.kahkoska@netally.com

Above the Air

simplicity • visibility • collaboration | 2

simplicity • visibility • collaboration | 3

Software Capability Maturity ModelJo

urne

y

simplicity • visibility • collaboration | 4

Community

Journey

simplicity • visibility • collaboration | 5

Maturity – Holistic View

simplicity • visibility • collaboration | 6

Stack

simplicity • visibility • collaboration | 7

Time

simplicity • visibility • collaboration | 8

Legacy

199510/100

201910/100

1000/25005000/10000

simplicity • visibility • collaboration | 9

Bits per Time Slice

1999 2019

Modulation

Line Coding

simplicity • visibility • collaboration | 10

Shannon's Theorem

maximum rate at which we can transmit the information without any error, is limited by the bandwidth, the signal level, and the noise level.

simplicity • visibility • collaboration | 11

Shannon in Practice

simplicity • visibility • collaboration | 12

NBASE-TUsing the Cable Plant in a manner never intended

Enormous network infrastructure asset in Cat 5e Cabling90% of installed base2003-2014 over 70 billion meters of Cat 5e cabling were installed

simplicity • visibility • collaboration | 13

NBASE-T

simplicity • visibility • collaboration | 14

Cable Coffin

UTP Cat 5

UTP Cat 3

simplicity • visibility • collaboration | 15

Link @100ftActual/Advertised

simplicity • visibility • collaboration | 16

@210ft Cat 5

simplicity • visibility • collaboration | 17

Impulse Noise

simplicity • visibility • collaboration | 18

simplicity • visibility • collaboration | 19

Impulse

simplicity • visibility • collaboration | 20

Alien Crosstalk

https://archive.nbaset.ethernetalliance.org//wp-content/uploads/2016/08/NBT_CablingWhitePaper_090916.pdf

simplicity • visibility • collaboration | 21

WLPC 2020?

List of devices attached 129.196.196.181:5555 device product:etherscope_nxg model:EtherScope_nXGdevice:etherscope_nxg transport_id:1adb -t 1 shell etherscope_nxg:/ # exitset | grep AND ANDROID_SERIAL=129.196.196.181:5555

etherscope_nxg:/ # mii -ieno0 1.0085 41.0085 805f 1.0086 80531.0087 8059

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Takeaways

• Link time is indicative of downshift• Impulse noise matters• Length matters• Length in bundle matters

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PoEUsing the Cable Plant in a manner never intended

simplicity • visibility • collaboration | 24

Reference @10ft -1V

simplicity • visibility • collaboration | 25

@100ft -3V

simplicity • visibility • collaboration | 26

Link 210ft -5.1V

simplicity • visibility • collaboration | 27

@350 ft -8.3V

~1V per 42ft

simplicity • visibility • collaboration | 28

Firewalls

Don’t permit all IP protocols if you really mean a particular protocol. Firewalls are security devices, so don’t undermine your security.

simplicity • visibility • collaboration | 29

Firewalls

simplicity • visibility • collaboration | 30

portquiz.net:xxxx

simplicity • visibility • collaboration | 31

Firewallsdefine autotest

……

simplicity • visibility • collaboration | 32

WLAN or WAN?

simplicity • visibility • collaboration | 33

DHCP

v

1st DHCP request 2nd within lease

simplicity • visibility • collaboration | 34Source: https://en.wikipedia.org/wiki/Residential_gateway

DHCP

simplicity • visibility • collaboration | 35Source: https://en.wikipedia.org/wiki/Residential_gateway

DHCP

simplicity • visibility • collaboration | 36

VLAN

c

c

Set VLAN and Priority

Join VLAN 200, VPRI 5

v

c

Get a different subnet

v

simplicity • visibility • collaboration | 37

Maturity: Less Silos, More integration

Wi-Fi Tester Wired Tester

Network Management Systems

End-user Experience

2.4 5G

Scan Link

simplicity • visibility • collaboration | 38

Maturity

Maturity: More Visibility

Names

IP Address

Services

L2 Ceiling

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