Seems there is an issue, that can create a loop via the management interface. see [URL]  
I have a VLTi pair of S3048-ON OS9 switches as the core of my management network to the idracs, and to all the switch management ports.  I just changed the core switches to a new set of S3048-ONs, and my connectivity to the management vlan became intermittent (partial ping loss and inability to maintain an ssh connection to the switch).  I finally tracked it down to the network mask on the management ports of the new S3048s being wrong.  I found this odd, as it meant that vlan traffic through the switch must have been routed through the management port.  I also see odd behaviour on another S5248F (OS10) where the management port is inaccessible from some parts of the network, but accessible from other parts. All the management traffic is being carried through S3048-ONs running OS9. So should traffic, that is passing through an OS9 switch, interact with the management port that is plugged into the same vlan (though on another switch)? Does the spanning tree see the management port interfaces traffic. i.e. could traffic to a management port be being blocked due to a loop between the management interface and the same vlan on the switch?
Routing interaction between management port and management vlan traffic passing 
through the switch