Thursday, September 23, 2021

Port-Channel Not Dropping When Altering Allowed VLANs

Hello everyone,

Just making sure I understand this correctly as I'm happy but also confused! so I've been deploying some new VLANs on some trunks between some 3850 switches running IOS-XE 16.12.5b and I create the VLAN, interface on the main switch then create the VLAN and update the port-channel on the far switch expecting the Port-channel to go down because the vlans allowed are mismatched.

Instead the far switch never goes down. Is this something changed in IOS-XE versus running the old IOS code?

Appreciate any answers.



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