Ouais, j'ai reconnecté le CIXP, puisqu'il n'est clairement pas en cause
Pour ceux que ça intéresse :
border1-lyonix#traceroute 46.227.16.8
Type escape sequence to abort.
Tracing the route to lafibre.info (46.227.16.8)
1 77.95.71.11 [AS 199422] 1 msec 1 msec 1 msec
2 lafibre.info (46.227.16.8) [AS 43142] 2 msec 1 msec 1 msec
border1-lyonix#ping 46.227.16.8 size 1500
Type escape sequence to abort.
Sending 5, 1500-byte ICMP Echos to 46.227.16.8, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/2/2 ms
SSH@border1-cixp-ng#traceroute 46.227.16.8
Type Control-c to abort
Tracing the route to IP node (46.227.16.8) from 1 to 30 hops
1 7 ms <1 ms <1 ms 192.65.185.144
2 2 ms <1 ms <1 ms 46.227.16.8
SSH@border1-cixp-ng#ping 46.227.16.8 size 1500
Sending 1, 1500-byte ICMP Echo to 46.227.16.8, timeout 5000 msec, TTL 64
Type Control-c to abort
Request timed out.
No reply from remote host.
SSH@border1-cixp-ng#ping 46.227.16.8 size 1469
Sending 1, 1469-byte ICMP Echo to 46.227.16.8, timeout 5000 msec, TTL 64
Type Control-c to abort
Request timed out.
No reply from remote host.
SSH@border1-cixp-ng#ping 46.227.16.8 size 1468
Sending 1, 1468-byte ICMP Echo to 46.227.16.8, timeout 5000 msec, TTL 64
Type Control-c to abort
Reply from 46.227.16.8 : bytes=1468 time=3ms TTL=63
Success rate is 100 percent (1/1), round-trip min/avg/max=3/3/3 ms.