On my network a cat5500 with LANE module is the default gateway for a client LANE subnet. Now it appens that the IP address of the cat5500's interface over the client subnet is unreachable several times during the day for 3-10 seconds every time (from the client subnet) while pinging from another network the same interface address it doesn't seem to have any problem. During these short periods of time all telnets connections from the clients to other subnets crash. Does anyone know what can I do solve the problem?