vBNS post-April 2000: vBNS+
UCAID Abilene second I2 backbone
Expansion of vBNS to a broader community (e.g. Educause schools) post-April 2000
Low-speed access (T1) via leased-line or Frame-Relay access to vBNS POP
High speed connectivity to US and International Research & Education Networks via NGIXes and the STARTAP