CBS 350s not working together when in LAG.

[SeniorMasterGunny]

I have a cisco cbs 350 10 port poe switch. CBS-8P-2G

I have a cisco cbs 350 28 port fiber switch. CBS-24S-4G

I have port 9 and 10 on the smaller switch in LAG.

I have the bigger switch in LAG on port 26 and 28.

I can't seem to get it to work. Any help would be appreciated.

[balaji.bandi]

I can't seem to get it to work. Any help would be appreciated.

need more informaiton what is not workimg ?

what kind of connection between these 2 ? Ethernet or Fiber ?

what mode of fibre MM and SM, and what SFP Model ?

post the configuration, also disable any smart port config on the interface

check below example :

https://www.cisco.com/c/en/us/support/docs/smb/switches/Cisco-Business-Switching/kmgmt-2239-configuring-lag-settings-on-a-switch-through-cli.html

[SeniorMasterGunny]

I am using 2 lines of fiber on bidirectional sfp. The problem isn’t sfp or
the line. Both are fine and function. The problem is when both switches are
setup in lag. Nothing is being passed. As found by one of the vlan’s on the
switch which should be giving dhcp ip’s that isn’t. If I delete the lag
setup on both switches and unplug or admin down one of the two ports and
have them only in trunk mode then it passes what it is supposed to just
fine. I have both the running configs if you want to see them.

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