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Re: Extreme congestion (was Re: inter-domain link recovery)
Mikael Abrahamsson wrote:
Depends on your traffic type and I think this really depends on the granularity of your study set (when you are calculating 80-90% usage). If you upgrade early, or your (shallow) packet buffers convince to upgrade late, the effects might be different.
If you do upgrades assuming the same amount of latency and packet loss on any circuit, you should see the same effect irrespective of buffer depth. (for any production equipment by a main vendor).
Deeper buffers allow you to run closer to 100% (longer) with fewer packet drops at the cost of higher latency. The assumption being that more congested devices with smaller buffers are dropping some packets here and there and causing those sessions to back off in a way the deeper buffer systems don't.
Its a business case whether its better to upgrade early or buy gear that lets you upgrade later.