latency on local network and on lo0

[corbello]

Hello All

i have a strange issue since that i updated my server from Freenas to Truenas 12 U1.1 , the ping latency on my local network is now very high (~10ms) but not only.
my server DL380 G10 is in prod since ~2years on Freenas without really pb (yes the smartpqi but it's a another story)

when i ping from a server the filer via the lan, i have a latency of ~10ms but if i use the arping it's ok

# ping 192.168.200.1
PING 192.168.200.1 (192.168.200.1) 56(84) bytes of data.
64 bytes from 192.168.200.1: icmp_seq=1 ttl=64 time=8.09 ms
64 bytes from 192.168.200.1: icmp_seq=2 ttl=64 time=14.1 ms
64 bytes from 192.168.200.1: icmp_seq=3 ttl=64 time=10.0 ms

by default the Lan is ok when i ping from the same server a another IP.
# ping 192.168.200.20
PING 192.168.200.20 (192.168.200.20) 56(84) bytes of data.
64 bytes from 192.168.200.20: icmp_seq=1 ttl=64 time=0.386 ms
64 bytes from 192.168.200.20: icmp_seq=2 ttl=64 time=0.268 ms
64 bytes from 192.168.200.20: icmp_seq=3 ttl=64 time=0.229 ms

i restart my filer , my switch , same issue on a another network with a different switch.

if i start a arping from the same server to my filer it's ok
# arping -I eno6 192.168.200.1
ARPING 192.168.200.1 from 192.168.200.10 eno6
Unicast reply from 192.168.200.1 [48:DF:37:AA:8B:93] 0.690ms
Unicast reply from 192.168.200.1 [48:DF:37:AA:8B:93] 0.722ms
Unicast reply from 192.168.200.1 [48:DF:37:AA:8B:93] 0.694ms

and now the more funny is if i ping my server via my filer
# ping 192.168.200.10
PING 192.168.200.10 (192.168.200.10): 56 data bytes
64 bytes from 192.168.200.10: icmp_seq=0 ttl=64 time=2.597 ms
64 bytes from 192.168.200.10: icmp_seq=1 ttl=64 time=0.217 ms
64 bytes from 192.168.200.10: icmp_seq=2 ttl=64 time=0.265 ms


but if i ping my loopback on my filer i have the problem
# ping 127.0.0.1
PING 127.0.0.1 (127.0.0.1): 56 data bytes
64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=19.367 ms
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=15.765 ms
64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=9.164 ms

same problem i create a new loopack interface
# ifconfig lo1 create
# ifconfig lo1 updated
# ifconfig lo1 126.0.0.1
# ping 126.0.0.1
PING 126.0.0.1 (126.0.0.1): 56 data bytes
64 bytes from 126.0.0.1: icmp_seq=0 ttl=64 time=11.958 ms
64 bytes from 126.0.0.1: icmp_seq=1 ttl=64 time=10.576 ms


i try with my second filer same HW , same issue :/

a routing problem ?

anybody can help me ?

Charles

 

[corbello]

Hello All,
i try to boot the server via the iso 12U2 file and start a shell . the ping on the loopback is under the ms .
but if i reinstalled the server from scratch (12U2) the ping on the loopback is of ~10ms.
it is a feature ?