<!--bigger tier-1 datacenter, according to TIA-942 annex G tiers notation, routing : Full -->
<!-- 6 clusters, no zone dist area, 1 horiz dist area, no multi-homing, telecom and operation rooms omitted -->
<!-- clusters -->
<!--bigger tier-1 datacenter, according to TIA-942 annex G tiers notation, routing : Full -->
<!-- 6 clusters, no zone dist area, 1 horiz dist area, no multi-homing, telecom and operation rooms omitted -->
<!-- clusters -->