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Deployment guide

For the Elements of the access network not covered in the Google document “network best

practices for large deployments”, the table below walks through a deployment guide for small,

medium and large networks.

Access area Small network

Serving<500

concurrent users

-Totalusersupto2000

-1or2buildings

-<1000sqMtrs

Medium network

Serving500-2000

concurrent users

-Totalusers2K->10K

-3to15buildings

-Singlecampus

large network

Serving2000-5000

concurrent users

-Totalusers10K->50K

-16to100buildings

-Multiplecampuses

Bandwidth

into the

campus

(excluding

redundancy)

64kbps,

128kbps or

512kbps per

concurrent

user

Lowest = 32 Mbps

Mid = 64 Mbps

High = 256 Mbps

Lowest = 32 Mbps

Mid = 256 Mbps

High = 1 Gbps

Lowest = 320 Mbps

Mid = 640 Mbps

High = 2.5 Gbps

Firewalls If you can live without granular

L7rewallcontrolsyoucan

use your routers ACL for

simple allow / deny rules.

Elsebuyasmallsizedrewall

sized appropriately ( see

sizing elements on the large

network box).

If you can live without granular

L7rewallcontrolsyoucan

use your routers ACL for

simple allow / deny rules,

ElsebuyaMidsizedrewall

sized appropriately ( see

sizing elements on the large

network box).

Typically you will need a large

sizedrewall,sizedfor

-Networkcapacity

-Connectionspersecond

-Concurrentconnections

-Packetspersecond

-VPNthroughput(ifrequired)

-IPSthroughput(ifrequired)

-variousothercapacity

metrics

LAN : Routers Pick a router that has capacity

(CPU, Memory, Backplane…)

to:

-routeyourlinkspeed

-Hasthevarietyofinterfaces

you will use now and the near

future (T3/E3, GbE Copper or

Fiber (SFP’s)

Pick a router that has capacity

(CPU, Memory, Backplane…)

to:

-routeyourlinkspeed

-Hasthevarietyofinterfaces

you will use now and the near

future (T3/E3, GbE Copper or

Fiber (SFP’s)

Pick a router that has capacity

(CPU, Memory, Backplane…)

to:

-routeyourlinkspeed

-Hasthevarietyofinterfaces

you will use now and the near

future (GbE Copper or Fiber

(SFP’s)

LAN :

Switches

Consider the following

elements in this article when

selecting your switching fabric

Consider the following

elements in this article when

selecting your switching fabric

Consider the following

elements in this article when

selecting your switching fabric

LAN : VLANS In order to reduce the size

of your broadcast domains

consider using VLAN (see

article & simple tutorial)

VLAN tagging can also be

implemented on wireless

tracaslongastheAP’sand

wireless controllers support it.

Also it is recommend that each

SSID has its own VLAN.

In order to reduce the size

of your broadcast domains

consider using VLAN (see

article & simple tutorial)

VLAN tagging can also be

implemented on wireless

tracaslongastheAP’sand

wireless controllers support it.

Also it is recommend that each

SSID has its own VLAN.

In order to reduce the size

of your broadcast domains

consider using VLAN (see

article & simple tutorial)

VLAN tagging can also be

implemented on wireless

tracaslongastheAP’sand

wireless controllers support it.

Also it is recommend that each

SSID has its own VLAN.

continued

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