HP StorageWorks Enterprise File Services WAN Accelerator 3.0.4 Command-Line Interface reference manual (AG421-96004, March 2007)

HP STORAGEWORKS EFS WAN ACCELERATOR COMMAND-LINE INTERFACE REFERENCE MANUAL 113
4 - CONFIGURATION-MODE
C
OMMANDS
Example minna (config) # in-path rule autodiscover srcaddr 10.0.0.0/24
optimization SDR-Only rulenum 1
minna (config) #
neural-mode <mode> Enables neural framing in the HP EFS WAN Accelerator. Enabling
neural framing makes your WAN more efficient by gathering data
to select the optimal packet framing boundaries for Scalable Data
Referencing (SDR). For different types of traffic, one algorithm
may be better than others. There is a trade-off between the latency
added to the connection and the compression and SDR
performance. The choices are:
• never. Never use the Nagle algorithm. All the data is immediately
encoded without waiting for timers to fire or application buffers to
fill past a specified threshold. Neural heuristics are computed in
this mode but are not used.
• always. Always use the Nagle algorithm. This is the default
setting (always wait 6 ms). All data is passed to the codec which
attempts to coalesce consume calls (if needed) to achieve better
fingerprinting. A timer (6 ms) backs it up and causes leftover data
to be consumed. Neural heuristics are computed in this mode but
are not used.
• tcphints. Base setting on TCP hints. If data is received from a
partial frame packet or a packet with the TCP PUSH flag set, the
encoder encodes the data instead of immediately coalescing it.
Neural heuristics are computed in this mode but are not used.
• dynamic. Dynamically adjust the Nagle parameters. The HP EFS
WAN Accelerator picks the best algorithm to use by learning
what algorithm is best and adapting if the traffic characteristic
changes.
TIP: To configure neural framing for the FTP data channel, define
an in-path rule with the destination port 20 and set its optimization
policy. To configure neural framing for the MAPI data channel,
define an in-path rule with the destination port 7830 and set its
optimization policy.
optimization <policy> Specifies the type of optimization policy for this rule: Normal (the
default value; perform Lempel-Ziv (LZ) compression and Scalable
Data Referencing (SDR)); SDR-Only (perform only SDR; do not
perform LZ compression); and None (do not perform SDR or LZ
compression).
TIP: To configure optimization policies for the FTP data channel,
define an in-path rule with the destination port 20 and set its
optimization policy. To configure optimization policies for the
MAPI data channel, define an in-path rule with the destination port
7830 and set its optimization policy.
vlan <vlan tag ID> Specifies the VLAN tag ID for which the rule applies. The VLAN
identification number is a value with a range from 0-4094 (0
specifies no-tagging).
rulenum <rulenum> Specifies the rule number for this rule: 1-N or start or end. The rule
inserts itself at the rule specified. For example, if rulenum is 3 then
the new rule will be #3, the old #3 rule will be #4 and so forth. The
start option specifies the rule to be the first rule and end specifies it
to be the last rule.