我们向全球大量手机用户提供实时数据，并尝试使用数据包中的差异化服务字段标记数据以确保数据及时到达那里。我们的数据似乎很适合它，但我们不想让拥塞问题变得更糟（或者更糟的是从一个很少使用的功能中发现未知的路由器错误/问题），所以我们想知道是否有人在荒野。数据包是否更频繁、更及时地出现？或者如果在大型网络上使用“坏事”会发生。
顺便说一句，我们用 Wireshark 打开了一个传入的 Skype 呼叫数据包，发现他们没有设置优先级，但这可能是因为他们担心被挑出来？
任何经验都非常感谢。
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If the packets stay within your own network then you can apply and control QoS polices using these DiffServ markings - effectively giving some traffic higher priority than others, with sensible limits and safeguards.
Once you go into someone else's network or onto the internet, most networks will reset or remove any Diffserver marking at the ingress point to the network.
This is because the network provider itself typically wants to decide which traffic, if any, to prioritise and will not be happy to leave it to clients of the network (unless you have an SLA or other agreement with the network provider to support some QoS scheme - some providers will support services which offer higher service then the typical best effort level, for example BT in the UK offer a priority broadband service, although I am not sure how much take up there is on these types of services).
Note that the service providers will often have QoS set up right to a customers home or premises to provide services like VoIP, IPTV etc - these require better than best effort generally.
于 2013-09-17T21:07:01.360 回答