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Switch becoming unresponsive

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CrazyWolf13
Level 1
Level 1

‎08-16-2024 12:58 PM

Hi
I have gotten a Cisco sg300-28pp switch from my work, which was still in great shape.

I installed it, fully reset and simply configured some VLAN's, however nearly daily (sometimes twice daily) the switch and everything behind it gets unresponsive and not accessible:
http, https traffic just timeouts, accessing things behind it, access via IP directly works.

I literally tried everything and the issue always boils down to rebooting my switch, doing that seems to fix all the problems, however I currently have absolutely no idea what I could do to further debug nor what could be the issue.

Some little insight into my network: ISP Router > Opnsense > Switch > multiple Proxmox Nodes (Vlan 1) > Services on Proxmox (Vlan 20)

Huge thanks for any help!

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CrazyWolf13
Level 1
Level 1
In response to Flavio Miranda

‎08-17-2024 10:36 AM

I have not been able to test this, as the freezes sometimes do not occur for days and sometimes occur hourly.

But I can try to get the logs if the freezes appear, and report back.

Thanks anyway!

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Flavio Miranda
VIP
VIP

‎08-16-2024 01:39 PM - edited ‎08-17-2024 08:15 AM

@CrazyWolf13 

 Without see any log is very hard to say anything. 

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Kasun Bandara
VIP
VIP

‎08-16-2024 06:15 PM

@CrazyWolf13 hi, when is it getting unresponsive? after any specific change? or suddenly become unresponsive in random times?

Please rate this and mark as solution/answer, if this resolved your issue
Good luck
KB
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CrazyWolf13
Level 1
Level 1

‎08-17-2024 03:45 AM - edited ‎08-17-2024 04:37 AM

@ksa1 @Flavio Miranda Thanks for your replys!

Apologize for the long delay in asnwering, here the RAM logs:

Spoiler
21474835822020-Apr-09 01:09:52Informational%AAA-I-CONNECT: New http connection for user tobias, source 192.168.1.200 destination 10.50.20.2 ACCEPTED   
21474835832020-Apr-09 00:50:33Informational%BOOTP_DHCP_CL-I-DHCPRENEWED: The device has been renewed the configuration on interface Vlan 1 , IP 10.50.20.2, mask 255.255.255.0, DHCP server 10.50.20.1    
21474835842020-Apr-08 23:50:33Informational%BOOTP_DHCP_CL-I-DHCPRENEWED: The device has been renewed the configuration on interface Vlan 1 , IP 10.50.20.2, mask 255.255.255.0, DHCP server 10.50.20.1    
21474835852020-Apr-08 22:50:33Informational%BOOTP_DHCP_CL-I-DHCPRENEWED: The device has been renewed the configuration on interface Vlan 1 , IP 10.50.20.2, mask 255.255.255.0, DHCP server 10.50.20.1    
21474835862020-Apr-08 21:50:33Informational%BOOTP_DHCP_CL-I-DHCPRENEWED: The device has been renewed the configuration on interface Vlan 1 , IP 10.50.20.2, mask 255.255.255.0, DHCP server 10.50.20.1    
21474835872020-Apr-08 21:47:03Warning%STP-W-PORTSTATUS: gi12: STP status Forwarding   
21474835882020-Apr-08 21:46:58Informational%LINK-I-Up:  gi12   
21474835892020-Apr-08 21:46:56Warning%LINK-W-Down:  gi12   
21474835902020-Apr-08 20:50:33Informational%BOOTP_DHCP_CL-I-DHCPRENEWED: The device has been renewed the configuration on interface Vlan 1 , IP 10.50.20.2, mask 255.255.255.0, DHCP server 10.50.20.1    
21474835912020-Apr-08 19:50:33Informational%BOOTP_DHCP_CL-I-DHCPRENEWED: The device has been renewed the configuration on interface Vlan 1 , IP 10.50.20.2, mask 255.255.255.0, DHCP server 10.50.20.1    
21474835922020-Apr-08 18:50:33Informational%BOOTP_DHCP_CL-I-DHCPRENEWED: The device has been renewed the configuration on interface Vlan 1 , IP 10.50.20.2, mask 255.255.255.0, DHCP server 10.50.20.1    
21474835932020-Apr-08 17:50:33Informational%BOOTP_DHCP_CL-I-DHCPRENEWED: The device has been renewed the configuration on interface Vlan 1 , IP 10.50.20.2, mask 255.255.255.0, DHCP server 10.50.20.1    
21474835942020-Apr-08 16:50:33Informational%BOOTP_DHCP_CL-I-DHCPRENEWED: The device has been renewed the configuration on interface Vlan 1 , IP 10.50.20.2, mask 255.255.255.0, DHCP server 10.50.20.1    
21474835952020-Apr-08 15:52:31Informational%INIT-I-Startup: Cold Startup   
21474835962020-Apr-08 15:51:07Notice%SYSLOG-N-LOGGING: Logging started.   
21474835972020-Apr-08 15:50:35Informational%BOOTP_DHCP_CL-I-DHCPCONFIGURED: The device has been configured on interface Vlan 1 , IP 10.50.20.2, mask 255.255.255.0, DHCP server 10.50.20.1    
21474835982020-Apr-08 15:50:33Warning%BOOTP_DHCP_CL-W-DHCPIPCANDIDATE: The device is waiting for IP address verification on interface Vlan 1 , IP 10.50.20.2, mask 255.255.255.0, DHCP server 10.50.20.1   
21474835992020-Apr-08 15:50:31Warning%STP-W-PORTSTATUS: gi4: STP status Forwarding   
21474836002020-Apr-08 15:50:31Warning%STP-W-PORTSTATUS: gi3: STP status Forwarding   
21474836012020-Apr-08 15:50:31Warning%STP-W-PORTSTATUS: gi1: STP status Forwarding   
21474836022020-Apr-08 15:50:31Warning%STP-W-PORTSTATUS: gi2: STP status Forwarding   
21474836032020-Apr-08 15:50:30Warning%STP-W-PORTSTATUS: gi5: STP status Forwarding   
21474836042020-Apr-08 15:50:30Warning%STP-W-PORTSTATUS: gi12: STP status Forwarding   
21474836052020-Apr-08 15:50:27Informational%LINK-I-Up:  gi4   
21474836062020-Apr-08 15:50:27Informational%LINK-I-Up:  gi3   
21474836072020-Apr-08 15:50:27Informational%LINK-I-Up:  gi1   
21474836082020-Apr-08 15:50:27Informational%LINK-I-Up:  gi2   
21474836092020-Apr-08 15:50:26Informational%LINK-I-Up:  gi5   
21474836102020-Apr-08 15:50:26Informational%LINK-I-Up:  Vlan 30   
21474836112020-Apr-08 15:50:26Informational%LINK-I-Up:  Vlan 20   
21474836122020-Apr-08 15:50:26Informational%LINK-I-Up:  Vlan 1   
21474836132020-Apr-08 15:50:26Informational%LINK-I-Up:  gi12   
21474836142020-Apr-08 15:50:25Alert%Environment-A-FAN-STAT-CHNG: FAN# 1 status changed - not operational.   
21474836152020-Apr-08 15:50:24Informational%LINK-I-Up:  loopback1   
21474836162020-Apr-08 15:50:24Warning%LINK-W-Down:  gi28   
21474836172020-Apr-08 15:50:23Warning%LINK-W-Down:  gi27   
21474836182020-Apr-08 15:50:23Warning%LINK-W-Down:  gi26   
21474836192020-Apr-08 15:50:23Warning%LINK-W-Down:  gi25   
21474836202020-Apr-08 15:50:23Warning%LINK-W-Down:  gi24   
21474836212020-Apr-08 15:50:23Warning%LINK-W-Down:  gi23   
21474836222020-Apr-08 15:50:23Warning%LINK-W-Down:  gi22   
21474836232020-Apr-08 15:50:23Warning%LINK-W-Down:  gi21   
21474836242020-Apr-08 15:50:23Warning%LINK-W-Down:  gi20   
21474836252020-Apr-08 15:50:23Warning%LINK-W-Down:  gi19   
21474836262020-Apr-08 15:50:23Warning%LINK-W-Down:  gi18   
21474836272020-Apr-08 15:50:23Warning%LINK-W-Down:  gi17   
21474836282020-Apr-08 15:50:23Warning%LINK-W-Down:  gi16   
21474836292020-Apr-08 15:50:23Warning%LINK-W-Down:  gi15   
21474836302020-Apr-08 15:50:23Warning%LINK-W-Down:  gi14   
21474836312020-Apr-08 15:50:23Warning%LINK-W-Down:  gi13   

Don't mind the fan erros, they are working just fine.

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Flavio Miranda
VIP
VIP
In response to CrazyWolf13

‎08-17-2024 08:22 AM

The only log I see that really seems to be a problem is "%INIT-I-Startup: Cold Startup " but this is the consequence not the cause. Rather than that, I dont see anything else. Did you see anything related to high CPU? It could be Spanning-tree loop but for that happen you should have another device on the network.

 I would start thing about firmware upgrade.

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CrazyWolf13
Level 1
Level 1
In response to Flavio Miranda

‎08-17-2024 08:29 AM

Thanks @Flavio Miranda !

It runs on the latest firmware(1.4.11.5)
I can't really see a really high CPU usage, however yeah the UI is quite slow, but I tought that is most likely due to the age of the software.

CrazyWolf13_0-1723908543643.png

 

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Flavio Miranda
VIP
VIP
In response to CrazyWolf13

‎08-17-2024 09:49 AM

If you disconnect everything from the switch and keep it up, does the reboot also occours?

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CrazyWolf13
Level 1
Level 1
In response to Flavio Miranda

‎08-17-2024 09:59 AM

@Flavio MirandaNot sure if I explaind correctly, sorry!

I meant, I need to manually reboot the device to get it up again, after it becomes unresponsive.

The device does not reboot by itself.

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Flavio Miranda
VIP
VIP
In response to CrazyWolf13

‎08-17-2024 10:34 AM

Sorry, I may misunderstood. I should be asking if the device also freeze if you do not connect anything on it for a period of time.

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CrazyWolf13
Level 1
Level 1
In response to Flavio Miranda

‎08-17-2024 10:36 AM

I have not been able to test this, as the freezes sometimes do not occur for days and sometimes occur hourly.

But I can try to get the logs if the freezes appear, and report back.

Thanks anyway!

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Flavio Miranda
VIP
VIP
In response to CrazyWolf13

‎08-17-2024 10:53 AM

Sounds good.  Hope the logs show something interesting.

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