[Iftop-users] iftop performance issue
fred at fperrin.net
fred at fperrin.net
Thu Apr 23 11:12:39 BST 2015
Hi list,
On my machine, if I generate the following IPv6 flood:
ip -6 neigh add fe80::1234 dev eth0 lladdr 00:11:22:33:44:55
nc -6 -u fe80::1234%eth0 1234 < /dev/zero
The traffic reported by iftop is much less than the reality, as iftop
can't read packets off pcap fast enough. This patch only demonstrate
the problem, I don't intend for it to be applied. I haven't started to
dig into the cause yet.
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