Chapter 28 Application Patrol

outgoing speed of 1000 kbps. You configure policy A for server A’s traffic and policy B for server B’s traffic.

Figure 269 Bandwidth Management Behavior

1000 kbps

BWM

1000 kbps

 

1000 kbps

Configured Rate Effect

In the following table the configured rates total less than the available bandwidth and maximize bandwidth usage is disabled, both servers get their configured rate.

Table 125 Configured Rate Effect

POLICY

CONFIGURED RATE

MAX. B. U.

PRIORITY

ACTUAL RATE

A

300 kbps

No

1

300 kbps

 

 

 

 

 

B

200 kbps

No

1

200 kbps

 

 

 

 

 

Priority Effect

Here the configured rates total more than the available bandwidth. Because server A has higher priority, it gets up to it’s configured rate (800 kbps), leaving only 200 kbps for server B.

Table 126

Priority Effect

 

 

 

POLICY

 

CONFIGURED RATE

MAX. B. U.

PRIORITY

ACTUAL RATE

A

 

800 kbps

Yes

1

800 kbps

 

 

 

 

 

 

B

 

1000 kbps

Yes

2

200 kbps

 

 

 

 

 

 

Maximize Bandwidth Usage Effect

With maximize bandwidth usage enabled, after each server gets its configured rate, the rest of the available bandwidth is divided equally between the two. So server A gets its configured rate of 300 kbps and server B gets its configured rate of 200 kbps. Then the ZyWALL divides the remaining bandwidth (1000 - 500 =

500)equally between the two (500 / 2 = 250 kbps for each). The priority has no effect on how much of the unused bandwidth each server gets.

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ZyWALL USG 50 User’s Guide