SR OS mirroring can be organized in the following logical entities:
The mirror source is defined as the location where ingress or egress traffic specific to a port, SAP, MAC, or IP filter, ingress label or a subscriber 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 where the mirrored packets are sent.
The subscriber contains hosts which are added to a mirroring service (applies to the 7450 SR and 7750 SR only).