Optimizing The Dpi Engine - HP MSR Series Configuration Manual

Step
2. Create an email
parameter profile and
enter its view.
3. Specify the email server.
4. Specify the DNS server
address.
5. Specify the email sender
address.
6. Specify the email receiver
address.
7. Enable email client
authentication.
8. Enable the secure
password authentication
feature.
9. Specify the username for
logging in to the email
server.
10. Specify the password for
logging in to the email
server.

Optimizing the DPI engine

The DPI engine includes a series of optimization features. For example, you can enable the DPI
engine to uncompress or decode the compressed or encoded packets to identify the application
information of the packets. The optimization features improve inspection and accuracy of the DPI
engine, but consume more system resources. You can adjust the optimization features for different
scenarios to provide optimal inspection performance.
To optimize the DPI engine:
Step
1. Enter system view.
2. Set the maximum number
of payload-carrying
packets to be inspected
per data flow.
3. Set the maximum number
of options to be cached
per TCP/UDP data flow.
4. Enable the TCP segment
reassembly feature.
5. Disable a DPI engine
optimization feature.
Command
inspect email parameter-profile
parameter-name
email-server addr-string
dns-server ip-address
sender addr-string
receiver addr-string
authentication
secure-authentication
username name-string
password pwd-string
Command
system-view
inspect cache-option maximum
max-number
inspect packet maximum max-number
inspect tcp-reassemble enable
inspect optimization [ chunk |
no-acsignature | raw | uncompress |
url-normalization ] disable
573
Remarks
By default, no email parameter
profiles exist.
By default, no email server is
specified.
By default, no DNS server
address is specified.
By default, no email sender
address is specified.
By default, no email receiver
address is specified.
By default, email client
authentication is disabled.
By default, the secure
password authentication
feature is disabled.
By default, no username is
specified for logging in to the
email server.
By default, no password is
specified for logging in to the
email server.
Remarks
N/A
By default, the DPI engine can
inspect a maximum of 32
payload-carrying packets per
data flow.
By default, the DPI engine can
cache a maximum of 32
options per TCP/UDP data
flow.
By default, the TCP segment
reassembly feature is
disabled.
By default, all DPI engine
optimization features are
enabled.