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New Member

QoS implementation: a general question

Hi,

What is the better way to implement QoS over a WAN link :

congestion avoidance (with rate limiting or traffic shaping) or congestion management (with queing's algorithms)? and what are the general guidelines?

thanks in advance,

Graz.

2 REPLIES
Bronze

Re: QoS implementation: a general question

There is no definitive answer to this question. It depends what you are trying to achieve.

If you have some traffic which is critical and time sensitive, such as SNA, then prioritisation is the way to go.

For frame relay however, traffic shaping, to maintain a constant flow of data, is the usual method. It can also be combined with prioritisation if required.

New Member

Re: QoS implementation: a general question

Greetings!

My approch for traffic engineering is on the proactive side.

I would take steps to prevent congestion in the network at the very first place, rather than facing the congestion and then managing it.

In case congestion occurs momentariely in the wan link then quequing can solve the purpose but if the duration of the congestion is more, then you can try compression scheme and still if you are not able to overcome congestion then you will have to increase WAN bandwidth.

Cordially,

Anuj

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