Technical information
Watson-SHDSL-Router-GUI-Manual.doc
Version 2.3-03
Watson SHDSL Router
Web-based Management Manual
Revision: 2012-02-29
8-49
fic's class. This level of prioritizing provides more flexibility in distributing band-
width between traffic types, by defining additional classes within a parent class.
HTB Hierarchical Tocken Bucket allows using one single physical
link to simulate multiple slower links and to send different kinds of traffic on dif-
ferent simulated links. In both cases, one has to specify how to divide the phys-
ical link into simulated links and how to decide which simulated link a given
packet is to be sent across.
Figure 8-51: Hierarchical Tocken Bucket
Schedule By default, the class will always be active. However, you can config-
ure scheduler rules in order to define time segments during which the class may be
active. To learn how to configure scheduler rules, refer to Section 9.9.3.
8.3.4.4 Rx Traffic Policing
Create a new entry in the Device Traffic Shaping for a LAN device. The procedure
is described in Section 8.3.4.1.
In the Edit Traffic Shaping configure the following Rx Traffic Policing fields:
Rx Bandwidth This parameter limits the device's bandwidth reception rate. In
this example, the purpose is to limit the bandwidth that the WAN device can receive
from the SHDSL connection.
Queue Policy Similar to Tx traffic, Rx traffic queueing can be based on a
shaping class or on strict priority (unless unlimited bandwidth is selected). By de-
fault, however, the queue policy is set to Policer, which is a relatively simple meth-
od of bandwidth control. With the policer option, you can dedicate a portion of the
bandwidth to a certain traffic type. This portion will always remain available to its
traffic type, even when not in use. This is a simpler method, as prioriy is not used at
all.
When selecting a class based queue policy, you must define an Rx Traffic Policy
Class, which is identical to defining a Tx Traffic Shaping Class, described earlier.
However if you select the policer as your queue policy, defining a policing class is
even simpler, as it lacks the priority setup.