Inbound, Outbound

Inbound and outbound refer to the direction of traffic movement between networks.

Inbound #

Inbound traffic is information entering the network

Messages traveling from a client to a server

e.g., When saving an attachment to the server

Outbound #

Outbound traffic is information leaving the network

Processing a client's request and messages traveling back from the server to the client

e.g., When downloading an attachment