On 12/Aug/20 09:44, Saku Ytti wrote:
Personally if the link is in a growth market, you should upgrade really early, 50% seems late, cost is negligible if you anticipate growth to continue. If it's not a growth market cost may become less than negligible.
The problem you have is "what is a growth market", especially over time as it stabilizes and see new entrants, but growth is now in a phase where you need massive scale to keep playing. You then shift from a "sales are guaranteed Day 1" to a "build it and hope for the best". Many Commercial get fearful at that point, because of the temptation to link capacity to guaranteed sales.
Sometimes networks congest particularly their edge interfaces strategically due to poor incentives, where irrelevant revenue wholesale arm might see some benefit from strategic congestion while also significantly hurting their money printing mobile arm reducing company wide bottom line while improving wholesale arm bottom line.
I know a few :-). Mark.