Other question about Automatic Resolution Gap

Hi again.
I 'm confuse about function of Compression of Log Archive Dest, so I have this question:
Is Log Archive Dest Compression Atributte valid only for Resolution GAP???????
Thanks again.

LOG_ARCHIVE_DEST_n = '....... COMPRESSION=enable ..."
I believe this attribute is set to enable compression *during redo gap resolution*.
According to MOS Redo Transport Compression in a Data Guard Environment [ID 729551.1],
In 11gR1, it is also possible to enable compression *duing redo transport service with Maximum* *Performance* using the following hidden parameter.
_REDO_TRANSPORT_COMPRESS_ALL=TRUE
According to OOW 2010 presentation,
In 11gR2, redo transport compression can be enabled *with all data guard protection modes.*

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