Network Dropouts at Peak Times

[DNonProf]

Hi everyone,

We have an Extreme stack consisting of 3 440g2 48p PoE that have recently started to drop out when traffic is heavy.  I've not had this happen with this switch stack before, we have been running it just over five years.  I have not made any config changes.  At first I thought there may be a rogue device on the network then started looking at the logs and it appears as if all active ports are going down then coming right back up again.  

Here is a snip of it happening mid-day.

12/12/2022 19:48:38.20 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:29 link UP at speed 100 Mbps and full-duplex
12/12/2022 19:48:34.42 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:29 link down
12/12/2022 19:46:27.01 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:29 link UP at speed 100 Mbps and full-duplex
12/12/2022 19:46:23.97 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:29 link down
12/12/2022 19:45:37.99 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:29 link UP at speed 100 Mbps and full-duplex
12/12/2022 19:45:36.42 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:29 link down
12/12/2022 19:45:35.96 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:29 link UP at speed 100 Mbps and full-duplex
12/12/2022 19:45:34.29 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:29 link down
12/12/2022 14:42:13.37 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:15 link UP at speed 100 Mbps and full-duplex
12/12/2022 14:08:04.84 <Noti:DM.Notice> Slot-1: Setting hwclock time to system time, and broadcasting time
12/12/2022 11:00:17.67 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:6 link UP at speed 100 Mbps and full-duplex
12/12/2022 11:00:17.57 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 1:43 link UP at speed 100 Mbps and full-duplex
12/12/2022 11:00:17.43 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 1:14 link UP at speed 100 Mbps and full-duplex
12/12/2022 11:00:17.31 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:16 link UP at speed 100 Mbps and full-duplex
12/12/2022 11:00:16.93 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:26 link UP at speed 100 Mbps and full-duplex
12/12/2022 11:00:08.89 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:42 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:08.74 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:30 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:06.41 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:42 link down
12/12/2022 11:00:06.24 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:30 link down
12/12/2022 11:00:02.71 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 1:27 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.69 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:20 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.66 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:19 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.60 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:38 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.55 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:20 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.52 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 1:29 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.50 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 1:46 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.49 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:5 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.42 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:8 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.36 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:12 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.34 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 1:31 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.31 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 1:13 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.30 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:24 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.26 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 1:10 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.25 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:28 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.24 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:26 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.23 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 1:8 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.18 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:44 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.18 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 1:25 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.16 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:41 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.13 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:11 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.11 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:10 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.06 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:27 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.04 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:37 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:02.00 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 1:12 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:01.96 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:14 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:01.94 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 2:13 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:01.92 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:32 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:01.90 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:22 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:01.89 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:13 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:01.84 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:40 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:01.80 <Info:vlan.msgs.portLinkStateUp> Slot-1: Port 3:10 link UP at speed 1 Gbps and full-duplex
12/12/2022 11:00:00.75 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 1:27 link down
12/12/2022 11:00:00.72 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:19 link down
12/12/2022 11:00:00.68 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:20 link down
12/12/2022 11:00:00.66 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:38 link down
12/12/2022 11:00:00.61 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:6 link down
12/12/2022 11:00:00.57 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:20 link down
12/12/2022 11:00:00.55 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:8 link down
12/12/2022 11:00:00.51 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 1:43 link down
12/12/2022 11:00:00.47 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 1:29 link down
12/12/2022 11:00:00.44 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 1:46 link down
12/12/2022 11:00:00.36 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:5 link down
12/12/2022 11:00:00.31 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:12 link down
12/12/2022 11:00:00.29 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 1:13 link down
12/12/2022 11:00:00.24 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 1:31 link down
12/12/2022 11:00:00.21 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:24 link down
12/12/2022 11:00:00.17 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 1:14 link down
12/12/2022 11:00:00.13 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 1:10 link down
12/12/2022 11:00:00.09 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 1:8 link down
12/12/2022 11:00:00.07 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:16 link down
12/12/2022 11:00:00.02 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:28 link down
12/12/2022 11:00:00.00 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:26 link down
12/12/2022 10:59:59.95 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:11 link down
12/12/2022 10:59:59.90 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 1:25 link down
12/12/2022 10:59:59.85 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:41 link down
12/12/2022 10:59:59.83 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:44 link down
12/12/2022 10:59:59.78 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:10 link down
12/12/2022 10:59:59.73 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 1:12 link down
12/12/2022 10:59:59.68 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:27 link down
12/12/2022 10:59:59.65 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:13 link down
12/12/2022 10:59:59.60 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 2:37 link down
12/12/2022 10:59:59.57 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:14 link down
12/12/2022 10:59:59.52 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:22 link down
12/12/2022 10:59:59.46 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:13 link down
12/12/2022 10:59:59.41 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:10 link down
12/12/2022 10:59:59.33 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:40 link down
12/12/2022 10:59:59.32 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:32 link down
12/12/2022 10:59:59.30 <Info:vlan.msgs.portLinkStateDown> Slot-1: Port 3:26 link down

Am I looking at these logs correctly?  Anyone have any ideas what could be happening?  My next step may be to open a ticket with Extreme.

I appreciate you.

[Charlotte6385]

f your equipment is running on outdated firmware, your internet may periodically disconnect due to glitches or registration issues. Your ISP automatically updates your modem, but it's still worth double-checking to make sure the latest firmware is installed. MyInsuranceInfo Insurance Verification

[DouglasF]

Do you have a reliable UPS protecting it?   I wonder if you are looking at a transient power glitch.  But if the unit is under maintenance, I would definitely call Extreme.

[DNonProf]

I did not think to check the UPS.  I'll look at this today.  Thanks.