NetScaler BLX

Set up NetScaler BLX cluster

February 1, 2024

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NetScaler BLX cluster is a group of BLX instances working together as a single system. Each BLX instance is called a node. BLX cluster can have one instance or as many as 32 instances as nodes.

Before you begin

Ensure that you understand the NetScaler cluster feature. For more information, see NetScaler Cluster.
Ensure that the following configurations are present on the Linux host of all the BLX instances:
- NTP is configured on each Linux host.
  Note:
  - For information about configuring NTP on Oracle Linux, see the Oracle Linux documentation.
  - For information about configuring NTP on Ubuntu Linux, see the Ubuntu Linux documentation.
  - For information about configuring NTP on CentOS Linux, see the CentOS Linux documentation.
- Logging and rsyslog settings are configured for BLX logs.
Ensure that the core dump is enabled on all the BLX instances. For more information about enabling core dumps, see Configure compressed core dumps for BLX.
Cluster is supported only for BLX instances that are configured in dedicated mode.
All general prerequisites of a NetScaler cluster apply to the BLX cluster.

Note:

For more information about the general prerequisites for setting up a NetScaler cluster, see General Prerequisites for NetScaler cluster.
For information about the NetScaler features supported in a BLX cluster, see NetScaler features supportability matrix for BLX cluster.
For information about automating NetScaler deployments using Terraform, see:
- NetScaler Terraform provider on GitHub
- NetScaler Terraform automation scripts on GitHub
BLX cluster setups are not supported in public cloud platforms. For example, AWS cloud.

Limitations of a NetScaler BLX cluster

The BLX cluster has the following limitations:

INC mode is not supported.
CLAG-based traffic distribution is not supported.
All limitations of a standalone BLX apply to a BLX cluster as well.

For more information about the limitations of standalone BLX, see BLX limitations.

Set up NetScaler BLX cluster

To set up BLX cluster, follow the general procedure for setting up a NetScaler cluster at NetScaler Cluster.

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Set up NetScaler BLX cluster

February 1, 2024

Contributed by:

February 1, 2024

Contributed by:

Set up NetScaler BLX cluster

Before you begin

Limitations of a NetScaler BLX cluster

Set up NetScaler BLX cluster

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