10-19-2021 09:51 PM
Hello everyone, I just buy 2 new CBS350-24T-4G switches and deployed them on my LAN. The uplink trunk is a LAG (No LACP) with the last two SFP ports (G27+G28). This switch is linked with a veteran SG-350-28SFP. The problem is that: everything is working fine (four VLAN), but after re-booting the LAG port group become "Access" and the VLANs Fail. I try to disable bonjour, LLDP and CDP. Nothing, the LAG setting change after rebooting. All the other settings regarding the switch are normal and save after boot. I am using the last firmware 3.1.1.7 of course.
I have to disable the LAG configuration to use the switch normally. Because after reboot there is a network FAULT. What's happening CISCO ?
10-19-2021 11:52 PM
- Review this document and or configure port settings accordingly :
M.
10-20-2021 01:43 AM
Hello marce1000, thank you for your answer, but currently the matter is not the LAG settings. When used is working fine. The matter is that after a power outage (or reboot), the LAG settings change by itself (only the side of CBS350-24t-4g). In deep the LAG become "ACCESS" and nobody ask for this changing. That's all.
For instance other side of link, where a SG350-SFP receice the LAG, the settings is set as TRUNK. So any "invite" to change port settings and use "native VLAN". It looks as anomaly firmware.
10-20-2021 02:59 AM
- Could you check and or look at the SG-side if any macro auto settings are set per port or globally , if so remove them from the interface configuration and globally (too). You may also look for these at the CBS-side and act accordingly. For the SG verify this globally with : show macro auto processing and on an individual port use : show macro auto ports [interface-id | detailed] . The latter commands may also work on the CBS
M.
10-21-2021 09:51 PM - edited 10-21-2021 10:26 PM
Finally I understood whi some ports, time to time, become 'trunk' with Motorola AP ...
I read this tutorial:
and by webGUI wanted remove globally this Auto Smartport function. You suggest too.
Please help me to understand, whi after apply DISABLE on Administrative Auto Smartport, the switch went into a complete block. It is a "star-point" and all the company were distrupted. Beside it was not possible to get in webGUI with usual admin credential (or default cisco user ...). It was need a Factory Reset procedure, than deploy a new fresh configuration. The most painful day of my life ! I would like understand what's happened there ....
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