Mirroring can be organized into the following logical entities.
The mirror source is the location where ingress or egress traffic specific to a port or MAC filter is to be mirrored (copied). The original frames are not altered or affected in any way.
An SDP is used to define the mirror destination on the source router to point to a remote destination (another router).
A SAP is defined in local and remote mirror services as the mirror destination to which the mirrored packets are sent.