What determinations the location of network interconnection nodes?
Like question of what determines the location of cities. A lot of factors matter. 1) History telephony end office structure largely established prior to 1917. 2) Regulation end offices currently an important focus of interconnection (collocation, UNE access) 3) Traffic patterns data bandwidth growing much faster than voice bandwidth, but voice bandwidth still has major network significance (see Table 5; RBOC non-voice bandwidth 2.
