---
version: rssac002v4
service: d.root-servers.net
start-period: 2021-12-31T00:00:00Z
end-period: 2021-12-31T23:59:59Z
metric: traffic-volume
dns-udp-queries-received-ipv4: 4396464176
dns-udp-queries-received-ipv6: 1524222159
dns-tcp-queries-received-ipv4: 102121201
dns-tcp-queries-received-ipv6: 59842081
dns-udp-responses-sent-ipv4: 4396423175
dns-udp-responses-sent-ipv6: 1524204616
dns-tcp-responses-sent-ipv4: 102063104
dns-tcp-responses-sent-ipv6: 59815817
