LON2 Network Refresh - LINX Metro Resilience

LON2 was originally launched in 2002 following LON1’s increasing popularity and was created to ensure there was no critical single point of failure in the UK’s internet connectivity. LINX’s dual LAN infrastructure design in London has been something that sets us apart over the years from other Internet Exchange Points. Operating a redundant, diverse and resilient solution in house for members means not having to look elsewhere for this critical capability. In 2018 LINX announced that they were the world’s first IXP to deploy a disaggregated network using EVPN, with hardware and software sourced from alternative vendors.

However, with end of life equipment, how did LINX refresh a LAN with 1/3 of its membership on without issues... or was there?