A slight delay in a packet on a busy Ethernet segment is not "an error". That is how Ethernet works.
What you are "showing us' (an occasional 44 ms delay) is typical of all busy Ethernet segments with many devices.
44 ms is 44 one thousandths of a second. 44/1000 seconds.
The way in which you answer my questions shows you do not understand LAN networking and Ethernet (or networking in general).
Delays on an Ethernet segment are not "errors" and nor is it a sign of "instability". This his how the Ethernet (and indeed most networking protocols work) protocols works (queues, delays, priorities).
If you want guaranteed fast delivery between two hosts, you need to move them to their own Ethernet segment with only two devices on that network.
This is the only approach any experienced network engineer would take or advise.
Think about how Ethernet works. Every device wants to talk at the same time on the same wire. They cannot talk at the same time. The more devices, the more this happens. Each device will wait a random number of milliseconds to transmit when the network is busy. This is now LANs work. The more devices, the more a chance of a delay. So..... a 44ms delay (44/1000 of a second) occasionally on a busy LAN segment is normal.
As I mentioned to you, but you do not seem to want to understand, you want guaranteed fast delivery between two hosts on a LAN segment, you need to move them to their own Ethernet segment with only two devices on that physical networking segment..
You're right. I hardly know about the networking, but some guys in network team told me that there's nothing wrong with the network devices, network configuration or something like that. They told me to focus on the server and OS. I have to agree with them because there're some servers which almost have the same network configuration with the two new servers, but have no problem like them
Code:
sysopr1@oltpn4c:/home/sysopr1>arp -a
? (10.0.91.1) at 0:1c:7f:64:16:f [ethernet] stored in bucket 1
? (10.0.10.26) at 88:94:71:c4:4a:49 [ethernet] stored in bucket 1
? (10.0.91.2) at 0:1c:7f:64:16:f [ethernet] stored in bucket 2
? (10.0.91.3) at 0:1c:7f:68:41:c3 [ethernet] stored in bucket 3
? (10.0.10.29) at 0:14:5e:b8:8a:6e [ethernet] stored in bucket 4
? (10.0.22.236) at 0:11:25:7b:17:e [ethernet] stored in bucket 5
oltpn5h (10.0.91.162) at e4:1f:13:50:35:85 [ethernet] stored in bucket 13
o6_mgt (10.0.10.38) at 0:1a:64:91:5:ff [ethernet] stored in bucket 13
misn2h (10.0.91.164) at 0:1a:64:a7:37:68 [ethernet] stored in bucket 15
? (10.0.10.42) at 0:14:5e:b8:8a:79 [ethernet] stored in bucket 17
oltpn10c-priv (10.0.21.66) at 6c:ae:8b:45:c4:90 [ethernet] stored in bucket 26
? (10.0.10.201) at 0:10:e0:3b:6b:4c [ethernet] stored in bucket 27
m2def (10.0.19.135) at 0:1a:64:91:42:6e [ethernet] stored in bucket 30
ihapp8 (10.0.91.180) at 0:1a:64:1e:ea:d8 [ethernet] stored in bucket 31
? (10.0.10.205) at 0:10:e0:35:dc:12 [ethernet] stored in bucket 31
? (10.0.10.206) at 0:10:e0:39:ef:c6 [ethernet] stored in bucket 32
ihapp1 (10.0.91.181) at 0:14:5e:b8:88:cc [ethernet] stored in bucket 32
ihapp2 (10.0.91.182) at 0:21:5e:8a:d2:f8 [ethernet] stored in bucket 33
? (10.0.10.207) at 0:10:e0:3a:35:14 [ethernet] stored in bucket 33
ihapp3 (10.0.91.183) at 0:21:5e:8a:d5:18 [ethernet] stored in bucket 34
? (10.0.10.208) at 0:10:e0:39:ef:e4 [ethernet] stored in bucket 34
ihapp4 (10.0.91.184) at 0:21:5e:8a:d3:6e [ethernet] stored in bucket 35
? (10.0.10.209) at 0:10:e0:3a:2e:b4 [ethernet] stored in bucket 35
ihapp5 (10.0.91.185) at 0:14:5e:b8:88:dc [ethernet] stored in bucket 36
? (10.0.10.61) at 0:14:5e:b8:63:f8 [ethernet] stored in bucket 36
? (10.0.10.210) at 0:10:e0:39:ef:90 [ethernet] stored in bucket 36
ihapp6 (10.0.91.186) at 0:14:5e:b8:87:e0 [ethernet] stored in bucket 37
? (10.0.10.211) at 0:10:e0:3a:2c:14 [ethernet] stored in bucket 37
ih_ei (10.0.91.187) at 0:1a:64:1e:d0:f1 [ethernet] stored in bucket 38
ic_tsm (10.0.10.63) at 0:1a:64:ad:4f:2a [ethernet] stored in bucket 38
? (10.0.91.188) at 0:14:5e:b8:87:6f [ethernet] stored in bucket 39
? (10.0.91.189) at 0:1a:64:1e:d0:f0 [ethernet] stored in bucket 40
? (10.0.10.70) at 8:9e:1:59:ff:3 [ethernet] stored in bucket 45
ic_smgrr (10.0.91.50) at 0:1a:64:ad:50:a3 [ethernet] stored in bucket 50
? (10.0.10.75) at 70:20:84:fd:7e:8b [ethernet] stored in bucket 50
ic_da (10.0.91.51) at 0:1a:64:ad:50:87 [ethernet] stored in bucket 51
? (10.0.91.202) at 0:21:5e:8a:d0:ae [ethernet] stored in bucket 53
? (10.0.91.203) at 0:21:5e:8a:d1:4a [ethernet] stored in bucket 54
? (10.0.10.229) at 0:10:e0:31:9b:44 [ethernet] stored in bucket 55
? (10.0.10.230) at 0:10:e0:2e:2a:70 [ethernet] stored in bucket 56
? (10.0.10.231) at 0:10:e0:31:ee:2c [ethernet] stored in bucket 57
? (10.0.10.232) at 0:10:e0:31:48:a6 [ethernet] stored in bucket 58
oltpn10c (10.0.91.66) at 98:be:94:0:67:30 [ethernet] stored in bucket 66
? (10.0.10.92) at f0:de:f1:22:a4:13 [ethernet] stored in bucket 67
o10gpfs (10.0.20.66) at 98:be:94:0:67:32 [ethernet] stored in bucket 68
? (10.0.10.253) at 0:1a:64:78:4a:9e [ethernet] stored in bucket 79
? (10.0.10.254) at 0:1a:64:95:5c:c2 [ethernet] stored in bucket 80
icapp1 (10.0.91.81) at 0:1a:64:1e:a3:63 [ethernet] stored in bucket 81
icapp2 (10.0.91.82) at 0:21:5e:8a:9c:a [ethernet] stored in bucket 82
icapp3 (10.0.91.83) at 0:1a:64:91:40:f5 [ethernet] stored in bucket 83
icapp4 (10.0.91.84) at 0:1a:64:91:38:3f [ethernet] stored in bucket 84
icapp5 (10.0.91.85) at 0:14:5e:b8:89:53 [ethernet] stored in bucket 85
icapp6 (10.0.91.86) at 0:14:5e:b8:8a:70 [ethernet] stored in bucket 86
ic_ei (10.0.91.87) at 0:1a:64:1e:d0:21 [ethernet] stored in bucket 87
? (10.0.10.113) at 0:21:5e:8a:d0:20 [ethernet] stored in bucket 88
? (10.0.10.115) at 0:21:5e:8a:d2:8c [ethernet] stored in bucket 90
? (10.0.91.91) at 0:10:e0:3b:6b:4d [ethernet] stored in bucket 91
? (10.0.10.117) at 0:21:5e:8a:d0:16 [ethernet] stored in bucket 92
? (10.0.91.92) at 0:10:e0:3b:64:27 [ethernet] stored in bucket 92
? (10.0.91.93) at 0:10:e0:39:f6:3f [ethernet] stored in bucket 93
? (10.0.10.119) at 0:14:5e:b8:88:d1 [ethernet] stored in bucket 94
? (10.0.91.94) at 0:10:e0:3b:6f:85 [ethernet] stored in bucket 94
oltpn5h-priv (10.0.21.137) at 0:14:5e:99:13:61 [ethernet] stored in bucket 97
o6dg (10.0.22.38) at 0:11:25:7b:26:7e [ethernet] stored in bucket 105
? (10.0.10.135) at 0:1a:64:91:3c:c4 [ethernet] stored in bucket 110
o5_mgt (10.0.10.137) at e4:1f:13:50:36:56 [ethernet] stored in bucket 112
? (10.0.10.2) at 0:1c:7f:64:16:f [ethernet] stored in bucket 126
? (10.0.10.170) at 8:9e:1:61:e9:5b [ethernet] stored in bucket 145
oltpn6c-priv (10.0.21.38) at 0:11:25:7b:22:a3 [ethernet] stored in bucket 147
bucket: 0 contains: 0 entries
bucket: 1 contains: 2 entries
bucket: 2 contains: 1 entries
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There are 69 entries in the arp table.[/QUOTE]
[QUOTE]PING oltpn4c: (10.0.91.62): 56 data bytes
64 bytes from 10.0.91.62: icmp_seq=0 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=1 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=2 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=3 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=4 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=5 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=6 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=7 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=8 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=9 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=10 ttl=255 time=1 ms
64 bytes from 10.0.91.62: icmp_seq=11 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=12 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=13 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=14 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=15 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=16 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=17 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=18 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=19 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=20 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=21 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=22 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=23 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=24 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=25 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=26 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=27 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=28 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=29 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=30 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=31 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=32 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=33 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=34 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=35 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=36 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=37 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=38 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=39 ttl=255 time=0 ms
64 bytes from 10.0.91.62: icmp_seq=40 ttl=255 time=0 ms
And it's a misunderstanding that I don't belive you. It's just a complicated case, and I don't have enough knowledge to solve it .
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03-03-2020