OK so I did a bit of digging and found nearly all US - Portugal internet traffic uses the UK for transit.
Real-world UK-CHI is about 130ms. Add another 40ms for the UK-PT hop = 170ms (Portugal-Chicago).
These are the sub-marine cable systems linking Portugal with the UK:
Doesn.t look great to me...
West African Cable System (WACS) 2012
Europe India Gateway (EIG) 2011
Tata TGN-Western Europe 2002
SeaMeWe-3 1999
Africa Coast to Europe (ACE) 2012
TAGIDE 2 1996
Eurafrica 1992
Columbus-III 1999
Real-world UK-CHI is about 130ms. Add another 40ms for the UK-PT hop = 170ms (Portugal-Chicago).
These are the sub-marine cable systems linking Portugal with the UK:
Doesn.t look great to me...
West African Cable System (WACS) 2012
Europe India Gateway (EIG) 2011
Tata TGN-Western Europe 2002
SeaMeWe-3 1999
Africa Coast to Europe (ACE) 2012
TAGIDE 2 1996
Eurafrica 1992
Columbus-III 1999
