I am installing a 5508 into an Alcatel environment. The APs are 1131, the WLC 5508 however the client opted for Alcatel switches. I already noticed an incompatability between switches when trying to connect fibre links. Has anyone ever heard of these issues? I tried configuring the mgnt port to VLAN specific only however I caannot ping it nor the default gateway when signed on via console.
I've never used Alcatel switches, so I don't know what encapsulation they use for trunks. Just remember that if you place the management interface for the 5508 into the native VLAN by specifying a tag of '0', then make sure that VLAN is also specified as the native VLAN on ALL trunks between the AP and the controller. If an Alcatel switch uses a proprietary tagging method (like Cisco used to use ISL) where ALL frames are tagged, then you will have to specify the VLAN tag on the management interface.
If I am somehow off on what's going on here, perhaps you could elaborate on what you mean by "incompatability between switches when trying to connect fibre links".