network blips every couple minutes
We have a bunch of 24 port switches - each plugged into a port on our firewall with it's own subnet.
All of the clients attached to a particular one of the switches would lose most connectivity every couple minutes for a minute or so.
so for instance
192.168.31.15 would be pinging
192.168.31.1 (it's own gateway)
192.168.1.1 (gateway of servers IP)
192.168.1.7 (main server)
1.1 and 1.7 would fail, but somehow 31.1 would still reply.... BUT firewall company says the packet never got to them because sniffer saw nothing come in during that time.....
Anyway - so we rebooted switch - issue persisted - so we moved all the cables from that switch to another switch on another subnet... things are working fine so far...
strange thing is we can plug in a laptop to the original "Bad" switch and now pings run fine on it....
Totally confused - any idea what the issue could have been?
All of the clients attached to a particular one of the switches would lose most connectivity every couple minutes for a minute or so.
so for instance
192.168.31.15 would be pinging
192.168.31.1 (it's own gateway)
192.168.1.1 (gateway of servers IP)
192.168.1.7 (main server)
1.1 and 1.7 would fail, but somehow 31.1 would still reply.... BUT firewall company says the packet never got to them because sniffer saw nothing come in during that time.....
Anyway - so we rebooted switch - issue persisted - so we moved all the cables from that switch to another switch on another subnet... things are working fine so far...
strange thing is we can plug in a laptop to the original "Bad" switch and now pings run fine on it....
Totally confused - any idea what the issue could have been?
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Thanks - should have checked arp when we were troubleshooting!! Oh well - it's working now, so I am leaving it.
Question... would the fact it's a server room with not great airflow, a completely mess of cables, and is about 76 degrees because the A/C unit is not quite as powerful as it should be change your mind at all about the overheating probability? (Also the switch is probably 10 years old.... and likely never air dusted.... so dust may have collected in decent quantities by now.)
Question... would the fact it's a server room with not great airflow, a completely mess of cables, and is about 76 degrees because the A/C unit is not quite as powerful as it should be change your mind at all about the overheating probability? (Also the switch is probably 10 years old.... and likely never air dusted.... so dust may have collected in decent quantities by now.)
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Anyway, Things are still all good as it stands.... just so weird.... wonder if it could have been overheating? Traffic flows, causes heat, causes problems, traffic stops, it cools down, traffic flows again. But that doesnt explain how we got ping replies from 30.1 when fortigate sniffer saw no such traffic.