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Chapter 3: Feature-Specific Upgrade Behavior
15
Peer-to-Peer
The ProxySG recognizes peer-to-peer (P2P) activity relating to P2P file sharing applications. By
constructing policy, you can control, block, and log P2P activity and limit the bandwidth consumed by
P2P traffic.
Upgrade Behavior
• A new default format and a log called p2p is created.
• The default p2p format is associated with the p2p log.
• If a format called p2p already exists, the format is renamed to p2p_user. Any log referencing the old
p2p format will, after the upgrade, start referencing p2p_user. If both p2p and p2p_user exist prior to
the upgrade, then format p2p is renamed to p2p_user1 so the new default format p2p can be
created.
• If a log called p2p already exists, a new log is not created.
CLI Compatibility Issues
None.
Documentation References
• Chapter 15, “Advanced Policy,” in the Blue Coat ProxySG Configuration and Management Guide
• Chapter 14, “VPM,” in the Blue Coat ProxySG Configuration and Management Guide
• The Blue Coat Content Policy Language Guide
New Access Logging Substitutions
The following substitutions can be used in access logging and policy:
Note: The access log ignores any ELFF or custom format fields it doesn’t understand. In a
downgrade, the format still contains all the fields used in the upgraded version, but only the
valid fields for the downgraded version display any information.
Table 3.2: New Substitutions
ELFF CPL Description
x-exception-category
-review-url
$(exception.category_
review_url)
Used for categorization review for certain
Content Filtering vendors. The substitution
contains only the categorization review URL
which is composed of the originally requested
URL and the standard prefix. The values are
empty if the selected content filter provider
does not support review messages, or if the
provider was not consulted for categorization,
or if the categorization process failed due to an
error.