hardware fast-forwarding filter advanced enable
Function
The hardware fast-forwarding filter advanced enable command enables advanced filtering conditions of hardware fast forwarding.
The undo hardware fast-forwarding filter advanced enable command disables advanced filtering conditions of hardware fast forwarding.
Format
hardware fast-forwarding filter advanced enable { pre-defined | user-defined }
undo hardware fast-forwarding filter advanced enable
Parameters
| Parameter | Description | Value |
|---|---|---|
pre-defined |
Enables advanced predefined filtering conditions. |
- |
user-defined |
Enables advanced user-defined filtering conditions. |
- |
Usage Guidelines
In versions earlier than V600R007C20SPC200, all models support this command. For V600R007C20SPC200 and later versions, device batches are distinguished by BomID Version (which can be checked using the display version command). All models except the USG6680E and USG6712E/6716E whose BomID Version is 003 or later or whose device BOM numbers contain "-001" support this command.
By default, no advanced filtering condition is enabled for hardware fast forwarding.
To effectively use limited fast forwarding resources, the FW can implement fast forwarding based on specified filtering conditions. The FW implements fast forwarding only for the traffic matching the conditions. The packets of heavy traffic with a long duration are forwarded preferentially.
There are two types of advanced filtering conditions, namely, pre-defined and user-defined. You can enable only one type of the filtering conditions.
The FW has an advanced predefined filtering condition by default, which cannot be modified or deleted. The condition is that the duration of a session is not less than 20s and the number of one-way session packets is not less than 6. You can use the hardware fast-forwarding filter advanced enable pre-defined command to enable predefined filtering conditions.
If the predefined filtering condition cannot meet the requirement, you can run the hardware fast-forwarding filter advanced enable user-defined command to enable user-defined filtering conditions.
After enabling a user-defined filtering condition, you need to run the hardware fast-forwarding filter advanced command to configure an advanced filtering condition. Otherwise, the user-defined filtering condition does not take effect.
Running the undo hardware fast-forwarding filter advanced enable command to disable an advanced filtering condition of hardware fast forwarding or running the hardware fast-forwarding filter advanced enable pre-defined command to enable an advanced predefined filtering condition does not delete the configured advanced filtering condition.