Technicolor - Thomson 605 User Manual

Expert Configuration

E-DOC-CTC-20050429-0104 v1.0

Configuration

The Configuration page allows you to configure IPQoS for a given destination 
interface for the IPQoS queues instantiation.

Following settings are available:

:

The destination interface for the IPQoS queues instantiation.

:

Disable or enable IPQoS for the interface.

:

Determines the packet discard strategy in case of congestion. Choose between:

: Tail Drop: arriving packets will be dropped as soon as the destination 

queue is in an overflow state.

: Early Packet discard: arriving packets will be dropped early 

according to the BLUE active queue management algorithm.

: 

Select the subqueue priority algorithm. Choose between:

:

Weighted Fair Queuing (WFQ) is used for the four AF queues. The realtime 
queue has priority over the WFQ queues, which have priority over the 
best-effort queue.

:

Priority queuing is used. Strict Priority scheduling is used between all 
queues. The higher the queue number, the higher the priority.

:

Weighted Round Robin (WRR) is used for the four AF queues. Each queue 
is scheduled in turn, with a circular “round” wrapping.

:

A number between 1 and 97. Represents the weight of the queue used for 
WFQ or WRR.

:

Represents a percentage of the interface bandwidth for rate-limiting of the Real 
Time queue. In case of congestion, the Real Time queue will only use this 
percentage of the interface bandwidth when there is also traffic on the other 
queues. This prevents other queues from starvation (when the highest uses all 
bandwidth).

:

Represents the Real Time queue burst size (in kilobytes) for rate limiting.

When enabling or disabling IPQoS, take the following into account:

if the WAN interface (for example PPPoA, IPoA,...) is detached at the 
time of enabling/disabling IPQoS, then the WAN interface has to be 
attached in order for the enabling/disabling of IPQoS to take effect.

if the WAN interface is attached at the time of enabling/disabling 
IPQoS, then the WAN interface has to be detached and then re-
attached in order for the enabling/disabling of IPQoS to take effect.