Layer 5 Protocols; Tos Handling Method - Comtech EF Data FX series 1005 Administrator's Manual

Comtech EF Data / Stampede

7.3.4 Layer 5 Protocols

This setting allows a protocol-specific optimization module to process the traffic. The choices are as
follows:
Generic TCP:
Perform "Dynamic data suppression" QOS traffic prioritization, compression, TurboStreaming on the
traffic.
HTTP:
In addition to the Generic TCP optimization, performs intelligent object caching, cache differencing,
turn reduction and other techniques as specified in L7 application policies on the traffic.
CIFS:
In addition to the Generic TCP optimization, perform optimizations to overcome unneeded latencies
in the CIFS application protocol.
MAPI:
In addition to the Generic TCP optimization, performs optimizations to overcome unneeded
latencies in the MAPI application protocol such as used in Outlook/Exchange server
communications.
SMTP/POP3:
This optimizes standard internet email traffic.
FTP:
In addition to the Generic TCP optimization, this performs optimizations to allow better DDS when
communicating with an FX Series Remote.
Diagnostic:
This specifies parameters when running diagnostic tests between FX Series Remote and FX Series
ADC.
FX Configuration:
This protocol entry is utilized by FX-Remotes for ADC location services. FX Remote appliances will
use this entry to locate configuration information when Auto-discovery is not enabled. The default
is for Auto-discovery to be enabled so normally this entry is not used. This entry is auto-generated
when new in-path interfaces are created and should not be deleted. If this entry is deleted it can be
easily added back by selecting 'Add' from the policy list screen and selecting it from the protocol list.

7.3.5 ToS handling method

Specifies how you want the FX to handle "Type of Service" (ToS) bits in the IP header for accelerated
traffic. The default method is to "Preserve and Propagate" which means that ToS bits for request
packets will be preserved through the acceleration tunnels and propagated in the responses.
"Preserve" means that the ToS bits will be preserved for request traffic but not propagated in the
responses. "Set" means that the FX will apply the ToS bits as specified in the "DSCP value" field in both
the request and response traffic.
The DSCP value: Specifies the ToS bits based on the binary value in the "DSCP value" field. DSCP is
an abbreviation for "Differentiated Services Code Points" and is described in more detail in the RFC-
2724 specification.
FX Series Administration Guide - Version 6.2.2
Chapter: FX Series Optimization Settings
Section: Layer 5 Application Policies
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MN-FXSERIESADM6 Rev 6