Mirror sources have the following properties:
When config>mirror>mirror-source and debug>mirror-source reference the same mirror source (for example, sap 1/1/1), config always takes precedence over debug, and config removes the debug configuration.
A mirror source can only be mirrored once. It is not possible to send a mirror source to two different mirror destinations.
Ports configured as host ports for satellite and ESA applications are not supported as mirror-source.
Internal ports such as ISA and ESA do not support config>mirror>mirror-source and there is only limited support for debug>mirror.