diff options
| author | Eric Dumazet <[email protected]> | 2014-04-10 21:23:36 -0700 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2014-04-14 12:39:59 -0400 |
| commit | 30f78d8ebf7f514801e71b88a10c948275168518 (patch) | |
| tree | f1e3fc6c694aa8a153901ceadf2106b2d43a0470 /tools/perf/util/trace-event-scripting.c | |
| parent | 05ab8f2647e4221cbdb3856dd7d32bd5407316b3 (diff) | |
ipv6: Limit mtu to 65575 bytes
Francois reported that setting big mtu on loopback device could prevent
tcp sessions making progress.
We do not support (yet ?) IPv6 Jumbograms and cook corrupted packets.
We must limit the IPv6 MTU to (65535 + 40) bytes in theory.
Tested:
ifconfig lo mtu 70000
netperf -H ::1
Before patch : Throughput : 0.05 Mbits
After patch : Throughput : 35484 Mbits
Reported-by: Francois WELLENREITER <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: YOSHIFUJI Hideaki <[email protected]>
Acked-by: Hannes Frederic Sowa <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions