Info - 2021

Research Paper: Fragmentation, truncation, and timeouts

Are large DNS messages causing problems at TLD name servers? In a peer-reviewed paper, published at the PAM conference, titled 'Fragmentation, truncation, and timeouts: are large DNS messages falling to bits?' we study the effect of large responses on the DNS. You can find the full paper here.

UDP and TCP traffic
Queries sent using TCP and UDP
Announced EDNS buffer lenght
EDNS(0) buffer size seen at our name servers, per source address
DNS responses with TC flag set
Share of responses that have the TC flag set
DNS response size
Size of DNS responses