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Hi archlinux folks,
I happened to see the IP packet reassembling works on my remote server are abnormally frequent and half of them failed due to time-out. Any ideas?
$ nstat
#365.1804289383 sampling_interval=10 time_const=60
IpInReceives 1946750 205.1
IpInDelivers 1945086 205.1
IpOutRequests 1607500 203.3
*IpReasmTimeout 1107 0.0
*IpReasmReqds 2221 0.0
IpReasmOKs 557 0.0
*IpReasmFails 1107 0.0
Some other contexts:
$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
link/ether 00:0d:3a:80:1f:10 brd ff:ff:ff:ff:ff:ff
3: enP14091s1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master eth0 state UP mode DEFAULT group default qlen 1000
link/ether 00:0d:3a:80:1f:10 brd ff:ff:ff:ff:ff:ff
$ sysctl -a | grep mtu
net.ipv4.ip_forward_use_pmtu = 0
net.ipv4.ip_no_pmtu_disc = 0
net.ipv4.route.min_pmtu = 552
net.ipv4.route.mtu_expires = 600
net.ipv4.tcp_mtu_probe_floor = 48
net.ipv4.tcp_mtu_probing = 1
Thanks.
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