Allowing asymmetric routing in F5

In this article, I assume that readers already know about the basic of asymmetric routing , So that I can immediately explain the steps to allow asymmetric routing traffic through the F5 (especially  LTM and LC). In order to configure where F5 to accept the asymmetric traffic, then the procedure to be performed are as follows:





1. First step – Make Fast4L Profile

Create a FastL4 profile¬† with the condition of “Loose initiation” and “Loose Close” active (enable) and the Packet Velocity ASIC (PVA) is non-active (disable). This step can be done either via CLI or GUI, namely:

A. Using the CLI

Typing the command:

bigpipe profile fastl4 <profile_name> PVA acceleration none loose loose close enable enable initiation

B. By using the GUI

– Go to the GUI menu

– Click Local Traffic

– Click on Profiles

– Select FastL4 from the drop-down Protocol

Type the name of the desired profile

– Enable the option “Loose initiation” and “Loose Close”

– Click the box “PVA Acceleration” and select “none” from its drop-down menu

– Click finisihed




2. The second step – Applying profile in the first step to Virtual Server

After the first step, the next step is to apply the profile that was created to the Virtual Server in fist step. The procedure is as follow:

– Login to the GUI

– Click Local Traffic

– Click on Virtual Servers

– Click the Virtual Server desired

– Then select FastL4 profile that was created in step one above. This profile is contained in the drop-down “Protocol Profile”


3. The third step – Disables VLAN-Keyed connection

Log into the CLI, then typing the command:

db bigpipe Connection.VlanKeyed disabled

 

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