More on Vonage service disruptions...

Michael.Dillon at Michael.Dillon at
Thu Mar 3 10:47:21 UTC 2005

> If you do not "own" the end-to-end network
> infrastructure, there is no way to guarantee any
> preferential handling of any particular subset of
> traffic.

There is a way to guarantee end-to-end QoS even
if you don't own all networks along the way. That
is for a 3rd party organization to impose a contractual
requirement. Aside from the very common scenario where
a large customer contracts with 2 ISPs, there are some
3rd parties which require such QoS in order to "certify"
an ISP. In Europe, the automotive industry does this.
Maybe the ANX does similar? Maybe one of the ANX
certified service providers could do a talk about their

If a group of ISP's want to create a trade association
for end-to-end QoS guarantees, they are free to do this.
Perhaps the shift to VoIP will even make this
economically viable. In any case, this issue should
make for an interesting panel discussion if NANOG
does a VoIP track/theme.

--Michael Dillon

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