North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: QoS/CoS interest
I have to agree with a lot of the comments that P Kavi made. My greatest issue with any attempt at GOS is that one MUST be able to control ingress traffic. Unless one can do so in a fairly clean manner, I don't see how it will work in practice. > * No policing at ingress: You can't have QoS unless > you can limit how much traffic enters the network, > and discard, or at least mark the excess traffic. > * No effective Class of Service mechanism: The support issue between ASes is, I believe, the largest one. I think getting such a policy in place will dwarf the carrier agreement woes between major Telcos. Can you imagine trying to build a common framework for Qos/Cos across the majority of providers any time soon? The administrative headaches will, I think, far outweigh any technical issues... > 3. No support across ASes. First of all, BGP provides no QoS > metrics. So there is no way to determine if a particular AS > should even be considered in setting up a QoS path. Second, while > a single AS could be upgraded to QoS-capable equipment, a forklift > upgrade across the Internet to QoS-capable equipment won't happen > anytime soon. ************************************************************* Greg Soprovich * Manitoba Telephone System * Manitoba Telephone System System Analyst * 1700 Ellice Ave (204) 784-6549 * Winnipeg, MB * R3C 3V6 [email protected] * * ************************************************************* - - - - - - - - - - - - - - - - -
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