It appears there is some type of rate limiting for icmp time-exceeded messages. Is it possible to configure this?
lines 2, 3, and 4 are extreme switches x460/480, a traceroute:
1 <1 ms <1 ms <1 ms xxxxx 2 10 ms 5 ms * xxxxx 3 2 ms 3 ms * xxxxx 4 5 ms * 2 ms xxxxx 5 32 ms 11 ms 4 ms xxxxx 6 36 ms 18 ms 4 ms xxxxx 7 11 ms 7 ms 6 ms xxxxx 8 3 ms 3 ms 3 ms xxxxx 9 3 ms 3 ms 3 ms xxxxx 10 7 ms 7 ms 7 ms xxxxx