RTT based toolsPathchar, Pchar, Clink
Packet 1, UDP,
N-bytes, TTL=1
Packet 2, UDP,
M-bytes, TTL=1
ICMP,
n-bytes
ICMP,
n-bytes
T1, T2
Router 1
Router 2
Tx
RTT2-RTT1 = T2-T1
M-N extra bytes in T2-T1 seconds
BW ? (M-N)/(T2-T1)
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