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Transparent Polled Async 3
TPA 2K Frame Size Increase
TPA 2K Frame Size Increase
Overview
During normal operation of the Transparent Polled Async (TPA) option, data
packets pass through a network uninterrupted. However, when passing larger TPA
packets over a network, the transfer of data becomes bursty and segmenting of data
packets occurs. To avoid segmenting data packets, set up the PAD node for
uninterrupted delivery of data packets up to 2K in size by enabling the TPA 2K
Frame Size feature.
With the exception of the PathBuilder S24x, 26x, and 27x switch, all PathBuilder
S200 series switches support the TPA 2K Frame Size Increase.
Enabling TPA 2K
Frame Size
Follow these steps to configure TPA 2K Frame Size Feature:
Step Action
1
If the node is a PathBuilder S24x, 26x, and 27x switch, enable the CSK
for the TPA option on this node.
2
Enable the CSK for the TPA 2K Frame Size feature on the node.
Note
See the
Configuration Basics Guide
for details on enabling a CSK.
3
Select
Configure -> PAD Profile Table -> #114 PAD Mode
from the
CTP Main menu,
and press Return.
4
Set the PAD Mode parameter to 1 for a host node or 2 for a remote node.
5
Boot the node. Performing a Node boot implements changes to the PAD
node, but it is not always necessary. Perform one of the following boot
procedures:
If
y
ou... Perform...
Changed a PAD Profile that is
already attached to the PAD Port
A Table and Record boot.
Are attaching a PAD Profile to a
PAD port.
A Port boot.
Created a Profile that you want to
attach to a port.
A Table and Record boot and then a
Port boot.