SmartNA-X 1G/10G Modular | Working with the Intelligent Packet Processor (IPP) Module |
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SmartNA-X
™
1G/10G User Guide 1.4
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2015 Network Critical Solutions Limited
Packet slicing
In addition to transforming bytes within the packet header, the IPP module can also be used to slice packets egressing
from a port to a given byte length. The slice size includes the CRC, which is recalculated to match the modified packet.
Slicing is optional and is not dependent on matching bits within the packet. Rather, it is applied to all packets egressing
from a port, whether they have been matched by a Transform or not.
To set up packet slicing on an IPP module port, use the
set port packetprocessor slicing
command. The following
example slices packets to 756 byes egressing from Port 1A:
CONTROLLER>
select slot 1
SLOT1>
set port A packetprocessor slicing 756
Committing changes after configuring the IPP module
Any changes made to the IPP module remain pending in memory only until the
commit
command has been entered.
This is done to prevent putting the system into a potentially unstable state while the IPP module is being configured. It
also allows you to back out of any changes made, if required, by entering the
packetprocessor cancel
command.
The general advise when setting up the IPP module is to make all required configuration changes, and then use the
commit
command to reconfigure the system.