I've been seeing this for a few months now on -CURRENT. TCP transfers
to local IP addresses (but not 127.0.0.1) are incredibly slow.
Transfer from localhost:
# scp "r...@127.0.0.1:/boot/kernel/kernel" .
kernel
100
% 11MB 11.1MB/s 00:00
Appropriately fast.
Transfer from an IP on a local interface:
# scp "r...@216.14.96.4:/boot/kernel/kernel" .
kernel
0
% 16KB 13.0KB/s 14:37 ETA
The routes seem normal:
# route get 127.0.0.1
route to: localhost
destination: localhost
interface: lo0
flags: <UP,HOST,DONE,LOCAL>
recvpipe sendpipe ssthresh rtt,msec mtu weight expire
0 0 0 0 16384 1 0
# route -n get 216.14.96.4
route to: 216.14.96.4
destination: 216.14.96.0
mask: 255.255.255.128
interface: nfe0
flags: <UP,DONE>
recvpipe sendpipe ssthresh rtt,msec mtu weight expire
0 0 0 0 1500 1 0
nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500
options=19b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4>
ether 00:30:48:c6:dd:9c
inet 216.14.96.4 netmask 0xffffff80 broadcast 216.14.96.127
Takes 10-60 minutes to copy, stalling frequently during the transfer.
It's not limited to just scp either, all TCP transfers seem to stall
this way.
I don't believe I'm doing anything unusual, has anyone seen anything
like this?
-- Kevin
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