Google Networking Best Practices for Large Deployments Manuel d'utilisateur télécharger pdf (Page 18)

18 Networking Best Practices for Large Deployments

• Chrome on Windows 7

Connections when entering URI: 1

Connections during initial load: 3

Connections during login: 6

Connections after a few minutes idle: 4

Connections when opening Calendar and Docs: 4

Connections when loading a document: 6

Average load: 3.6 connections

Peak load: 6 connections

Idle load: 3.1 connections

• Firefox on Windows 7

Connections when entering URI: 1

Connections during initial load: 4

Connections during login: 9

Connections after a few minutes idle: 3

Connections when opening Calendar and Docs: 11

Connections when loading a document: 17

Average load: 4.1 connections

Peak load: 17 connections

Idle load: 3.8 connections

Based on this, the expected load is:

• Average: (5000 x 3.6) + (3000 x 4.1) = 30,300 connections.

• Peak: (5000 x 6) + (3000 x 17) = 81,000 connections.

• Idle: (5000 x 3.1) + (3000 x 3.8) = 26,900 connections.

Based on this estimate, the proxy environment needs to be able to support at least 30,000

connections, possibly more to avoid problems during peak periods, or if growth is expected. If

the current proxy server environment is running at 50% capacity with 20,000 connections, this

is a sign that it will be necessary to deploy significantly more proxy servers, or to route Google

Apps traffic so that it bypasses the proxy server.

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Google Networking Best Practices for Large Deployments Manuel d'utilisateur Page 18