« Previous 1 2 3 4
DiffServ service classes for network QoS
Service Quality
Conclusions
The prioritization procedures presented here ensure improvements in the transmission of data streams (Figure 4). However, some of the proposed potential solutions differ fundamentally or require the combination of individual partial solutions. No single solution offers a panacea for every network problem.
For this reason, when designing the network, first you need to make sure that the network bandwidth is available as a mandatory requirement. QoS is not a panacea for insufficient transmission capacity on the network. Adequate bandwidth helps reduce delays and packet loss. Second, you need to counteract connection saturation or overload in the transmission path with the appropriate queuing procedures, which ensures that high-priority traffic flows are transmitted, even if transport resources are overloaded.
Ultimately, you can only achieve quality through quality assurance (i.e., by using suitable metrics). Admins often check passive lines but wrongly assume that active components can be ignored. However, experience shows that big differences can exist between what the data sheet claims and the actual network component.
Infos
- ITU Y series recommendations: https://www.itu.int/rec/T-REC-Y/en
« Previous 1 2 3 4
Buy this article as PDF
(incl. VAT)
Buy ADMIN Magazine
Subscribe to our ADMIN Newsletters
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Most Popular
Support Our Work
ADMIN content is made possible with support from readers like you. Please consider contributing when you've found an article to be beneficial.