Kerio Tech KERIO WINROUTE FIREWALL 6 User Manual download pdf (Page 131)

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9.2 Bandwidth Limiter conﬁguration

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Figure 9.1 Bandwidth Limiter conﬁguration

The Bandwidth Limiter module enables to deﬁne reduction of speed of incoming traﬃc (i.e.

from the Internet to the local network) and of outgoing data (i.e. from the local network to the

Internet) for transmissions of big data volumes and for users with their quota exceeded. These

limits do not depend on each other. This means it is possible to use one of these functions,

both or none.

Warning

In the Bandwidth Limiter module, speed is measured in kilobytes per second (KB/s). while ISPs

usually use kilobits per second (kbps, kbit/s or kb/s), or in megabits per second (Mbps, Mbit/s

or Mb/s). The conversion pattern is 1 KB/s = 8 kbit/s.

A 256 kbit/s line’s speed is 32 KB/s, a 1 Mbit/s line’s speed is 128 KB/s.

Setting limit values

The top of the dialog box contains a section where limits for transfers of big data volumes

can be set. These values determine bandwidth that will be reserved for these transfers. The

remaining bandwidth is available for other traﬃc.

Tests have discovered that the optimal usage of the Internet line capacity is reached if the

value is set to approximately 90 per cent of the bandwidth. It the values are higher, the

bandwidth limiter is not eﬀective (not enough speed is reserved for other connections and

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Kerio Tech KERIO WINROUTE FIREWALL 6 User Manual Page 131

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