--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5666703563 dns-udp-queries-received-ipv6: 735912393 dns-tcp-queries-received-ipv4: 124195069 dns-tcp-queries-received-ipv6: 14689687 dns-udp-responses-sent-ipv4: 5659532419 dns-udp-responses-sent-ipv6: 731521146 dns-tcp-responses-sent-ipv4: 122444826 dns-tcp-responses-sent-ipv6: 14744885