Operation Manual

Rate / Unit / isByteCount Specify the rate, unit, and the type of the

limitation.

Drop Log Select the behavior when the flow is

over limitation. You can just drop the

packets or drop packet and log it.

Click <Apply> at the bottom of the screen to save the above

configurations. You can now configure other advance sections or start

using the router (with the advance settings in place)

2.5.3 Guaranteed / Spare Class QoS

User can first specify maximum WAN total bandwidth and then set

bandwidth allocation rules according to two different classes: Guaranteed

or Spared. Rules in Guaranteed class are guaranteed to have specified

percentage of WAN Total bandwidth. At any period of time, if the

aggregated band w idth used by flow s in guara nteed class doesn’t exce ed

total bandwidth, the spared bandwidth is then available for allocating to the

flows in Spared class, according to the percentage configured.

For example, 192.168.1.1 is guaranteed to have 50Mbps bandwidth if it

needs and 192.168.1.2 has 25Mbps guaranteed on demand. If for a period

of time, the aggregated bandwidth used by both hosts is 40Mbps , so only

40% WAN bandwidth is consumed by Guaranteed class flows, then all

other hosts in 192.168.1.0 can compete to use the spared 60Mbps WAN

bandwidth. If there exists another LAN on gateway, say, 192.168.2.0/24,

then they can only use the rested bandwidth consumed by guaranteed and

spared class.