Hi,
we use two SG350XG-24F as a Stack as core switches and 3 SG350XG-48T as access switches.
The stack members are connected on fiber ports 23 and 24.
Each access switch is connected via DAC to each stack member. No LAG there.
We only created a LAG on port 3 of each fiber switch to our firewall. Is LAG even needed in stack mode if we dont want to use aggregation but simple failover?
Right now we are facing network outages and link flapping on several ports.
Any ideas?
Firmware is 2.4.5.71.
2147483556 2018-Nov-09 22:44:12 Warning %STP-W-PORTSTATUS: te2/0/7: STP status Blocking
2147483557 2018-Nov-09 22:43:32 Warning %STP-W-PORTSTATUS: te2/0/7: STP status Forwarding
2147483558 2018-Nov-09 22:42:30 Warning %STP-W-PORTSTATUS: te2/0/12: STP status Forwarding
2147483559 2018-Nov-09 22:42:25 Warning %STP-W-PORTSTATUS: te2/0/5: STP status Forwarding
2147483560 2018-Nov-09 22:42:24 Warning %STP-W-PORTSTATUS: te2/0/10: STP status Forwarding
2147483561 2018-Nov-09 22:42:24 Warning %STP-W-PORTSTATUS: te2/0/6: STP status Forwarding
2147483562 2018-Nov-09 22:42:23 Notice %STCK SYSL-N-UNITMSG: UNIT ID 2,Msg:%SYSLOG-N-LOGGING: Logging started.
2147483563 2018-Nov-09 22:42:00 Informational %LINK-I-Up: te2/0/12
2147483564 2018-Nov-09 22:41:59 Warning %LINK-W-Down: te2/0/12
2147483565 2018-Nov-09 22:41:59 Warning %STP-W-PORTSTATUS: te2/0/4: STP status Forwarding
2147483566 2018-Nov-09 22:41:59 Warning %STP-W-PORTSTATUS: te2/0/3: STP status Forwarding
2147483567 2018-Nov-09 22:41:59 Warning %STP-W-PORTSTATUS: te2/0/11: STP status Forwarding
2147483568 2018-Nov-09 22:41:58 Warning %STP-W-PORTSTATUS: te2/0/8: STP status Forwarding
2147483569 2018-Nov-09 22:41:58 Informational %TRUNK-I-PORTADDED: Port te2/0/1 added to Po1
2147483570 2018-Nov-09 22:41:55 Informational %LINK-I-Up: te2/0/12
2147483571 2018-Nov-09 22:41:55 Informational %LINK-I-Up: te2/0/5
2147483572 2018-Nov-09 22:41:54 Informational %LINK-I-Up: te2/0/4
2147483573 2018-Nov-09 22:41:54 Informational %LINK-I-Up: te2/0/3
2147483574 2018-Nov-09 22:41:54 Informational %LINK-I-Up: te2/0/11
2147483575 2018-Nov-09 22:41:54 Informational %LINK-I-Up: te2/0/10
2147483576 2018-Nov-09 22:41:54 Informational %LINK-I-Up: te2/0/8
2147483577 2018-Nov-09 22:41:54 Informational %LINK-I-Up: te2/0/7
2147483578 2018-Nov-09 22:41:54 Informational %LINK-I-Up: te2/0/6
2147483579 2018-Nov-09 22:41:53 Informational %LINK-I-Up: te2/0/1
Kind regards,
