The operator can change the mapping in service; that is, the operator can move active streams (C-S, C-G) from one S-PMSI to another using the configuration, or from the default PMSI to the S-PMSI, without having to stop data transmission or having to disable a PMSI.
The change is performed by moving a (C-S, C-G) stream from a per-group S-PMSI to a multi-stream S-PMSI and vice versa, and moving a (C-S, C-G) stream from one multi-stream S-PMSI to another multi-stream S-PMSI.
Notes:
During re-mapping, a changed (C-S, C-G) stream will first be moved to the default PMSI before it is moved to a new S-PMSI, regardless of the type of move. Unchanged (C-S, C-G) streams must remain on an existing PMSIs.
Any change to a multi-stream S-PMSI policy or to a preferred multi-stream S-PMSI policy (for example, an index change equivalent to less than or equal to the current policy) should be performed during a maintenance window. Failure to perform these types of changes in a maintenance window could potentially cause a traffic outage.