How does F5 HA work?

How does F5 HA work?

F5 load balancer ensures seamless failover in cases where a server is down or overloaded. HA deployment consists of two BIG-IP (like other load balancers) systems, synchronized with the same configuration: An active system that processes traffic. A standby system that remains in dormant mode until required.

How do you set up HA in F5?

Lab 4: Configure High-Availability¶

1. Open the Device Management > Device Trust > Device Trust Members page and click Add.
2. In the Device IP Address field, type 10.1.
3. Enter admin for the Administrator Username and Administrator Password.
4. Click Retrieve Device Information.
5. Click Device Certificate Matches.

What is HA group in F5?

An HA group is a high availability feature that allows you to specify a set of configuration objects such as trunks, pools, and VIPRION clusters that may be used to raise failover for redundant BIG-IP systems.

How do I set up F5 load balancer?

Adding nodes

1. On the F5 home page, click Local Traffic > Pools > Pool list.
2. Click the Members tab.
3. Click Add.
4. Click Node List.
5. In the Address list, click to select the node that you want to add to the pool.
6. Enter the service port number.
7. Keep the default configurations.
8. Click Finished. A node is added to a pool.

What is floating IP F5?

A floating self IP address ensures that application traffic reaches its destination. More specifically, a floating self IP address enables a source node to successfully send a request, and a destination node to successfully send a response, when the relevant BIG-IP device is unavailable.

How do you do a failover F5 load balancer?

Topic

1. Navigate to System > High Availability > HA Group List.
2. Select the HA group by name.
3. Clear the Enable box (only for versions prior to 13.0. 0).
4. Select Update.
5. Navigate to Device Management > Traffic Groups.
6. Select the traffic group by name.
7. Set Advanced Setup Options > Failover Method to Load Aware.
8. Click Update.

How do you manually sync in F5?

Manually synchronizing the BIG-IP configuration

1. On the Main tab, click Device Management > Overview.
2. In the Device Groups area of the screen, in the Name column, select the name of the relevant device group.
3. In the Devices area of the screen, in the Sync Status column, select a device.

How do I turn on auto sync on my F5?

Go to Device Management > Device Groups. Select the device group you want. Under Device Group Settings, for Sync Type select Automatic with Incremental Sync or Automatic with Full Sync. Select Update to save the change.

What is HA group?

An HA group is a configuration object you create and assign to a traffic group for devices in a device group. An HA group defines health criteria for a resource (such as an application server pool) that the traffic group uses.

What is LTM and GTM?

The Local Traffic Managers (LTM) and Enterprise Load Balancers (ELB) provide load balancing services between two or more servers/applications in the event of a local system failure. Global Traffic Managers (GTM) provide load balancing services between two or more sites or geographic locations.

Why doesn’t F5 support Config Sync for BIG-IP HA pairs?

Because BIG-IP config sync doesn’t include FDB entries or ARP records, F5 does not recommend using automatic configuration sync when managing a BIG-IP HA pair or cluster with the F5 Container Connector. You must disable config sync when using tunnels.

What is active / standby ha F5?

The F5 LTM provides the ability to configure a HA (High-Availability) based setup. Configuring HA ensures that traffic is still processed even in the event of a failure (such as a software or hardware). Within this article we will explain and discuss a Active / Standby HA F5 setup.

What is F5 failover cable used for?

Hardware Failover – Each F5 LTM provides a front panel port for which a failover cable can be used to interconnect both systems. The failover cable is a specially pinned BD9 cable and is only used to pass a voltage (which the active system supplies).

How do I manage a BIG-IP ha active-standby pair?

You can use the F5 Container Connectors (also called F5 BIG-IP Controller) to manage a BIG-IP HA active-standby pair or device group. The deployment details vary depending on the platform. For most, the basic principle is the same: You should run one BIG-IP Controller instance for each BIG-IP device.