9800 WLCs - different physical ports to split services

[GRANT3779]

When using central switching -

with the 9800 WLCs can we have different physical ports plugged in and used independently from say the main LAG?. Scenario I am thinking would be separate interface on the 9800 plugged into a DMZ and send guest related SSID traffic out this towards a FW. Corporate related SSIDs would be sent out the EtherChannel / LAG connected to our corporate infrastructure.

I don't think this was possible with the AireOS WLCs. It was a case of 1 x LAG and everything trunked over that. IOS XE WLC seems a bit more flexible however.

Thanks

[Mark Elsen · Accepted solution]

 - @GRANT3779            I believe this should work ;  verify the intended controller configuration using the
                                     CLI command show tech wireless and feed the output from that into Wireless Config Analyzer
                                            (Use the full command as outlined in green; it does not work with show tech-support   ) ,

  M.

[Saikat Nandy]

This was possible in AireOS and seen people follow the same practise in 9800 too. But at the same time seen issues in 9800 when physical interfaces been assigned to different vlans - especially in client DHCP process. So imo better use port channel rather than splitting the links.