WLC 5508 integration with fortigate and Guest Vlan

Question

Hi
I have 5508 Cisco WLC and i want to connect my wlc one port to fortigate (FW) for direct internet.
And other port in WLC i will connect on Cisco Core Switch for other SSID's and for management. Now the question is how to divide port in WLC 5508, how to point layer 3 traffic if don't configure switch port as trunk.
Kindly what will be best solution.

Answer 1

sh etherchannel 99 sum
Flags:  D - down        P - bundled in port-channel
        I - stand-alone s - suspended
        H - Hot-standby (LACP only)
        R - Layer3      S - Layer2
        U - in use      N - not in use, no aggregation
        f - failed to allocate aggregator
        M - not in use, no aggregation due to minimum links not met
        m - not in use, port not aggregated due to minimum links not met
        u - unsuitable for bundling
        d - default port
        w - waiting to be aggregated
Number of channel-groups in use: 38
Number of aggregators:           38
Group  Port-channel  Protocol    Ports
------+-------------+-----------+-----------------------------------------------
99     Po99(SU)         -        Gi2/2/1(P)     Gi2/2/2(P)     Gi2/2/3(D)     
                                 Gi2/2/4(P)     
Last applied Hash Distribution Algorithm: Fixed
Gi2/2/3 is down becasue we had to shut down the interface because when it is up many APs refuse to register.