Configuring Tfo Parameters; Configuring The Tfo Blacklist Autodiscovery Feature - HP FlexNetwork MSR2003 Configuration Manual

To apply a WAAS policy to an interface:
Step
1. Enter system view.
2. Enter interface view.
3. Apply a WAAS policy to
the interface.

Configuring TFO parameters

The congestion window size changes with the congestion status and transmission speed. An
appropriate initial congestion window size can quickly restore the network to its full transmission
capacity after congestion occurs.
After you enable TFO keepalives, the system starts the 2-hour TCP keepalive timer. If the local
device does not send or receive any data when the timer expires, it sends a keepalive to the peer to
maintain the connection.
The receiving buffer size specifies the size of data that can be received. It affects network
throughput.
To configure TFO parameters:
Step
1. Enter system view.
2. Set the initial congestion
window size.
3. Enable TFO keepalives.
4. Set the receiving buffer
size.
Configuring the TFO blacklist autodiscovery
feature
This feature automatically discover servers that cannot receive TCP packets with options and adds
the server IP addresses and port numbers to a blacklist. The system automatically removes blacklist
entries after a user-configured aging time.
During the 3-way handshake, the local device considers the TCP connection attempt failed if either
of the following situations occurs:
•
The peer device does not respond within the specified time period.
•
The peer device closes the TCP connection.
To configure the TFO blacklist autodiscovery feature:
Step
1. Enter system view.
2. Enable the TFO blacklist
autodiscovery feature.
Command
system-view
interface interface-type interface-number
waas apply policy [ policy-name ]
Command
system-view
waas tfo base-congestion-window
segments
waas tfo keepalive
waas tfo receive-buffer buffer-size
Command
system-view
waas tfo auto-discovery blacklist
enable
421
Remarks
N/A
N/A
By default, no WAAS policy
is applied to an interface.
Remarks
N/A
The default setting is two
segments.
By default, TFO keepalives are
disabled.
The default setting is 64 KB.
Remarks
N/A
By default, the TFO blacklist
autodiscovery feature is