Cisco ASA Series Cli Configuration Manual page 304

Configuring ASA Clustering
What to Do Next
Configure the master unit bootstrap settings. See the
Clustering, page
Configuring Basic Bootstrap Settings and Enabling Clustering
Perform the following steps to configure basic bootstrap settings and to enable clustering.
Detailed Steps
Command
Step 1
(Optional)
mtu cluster bytes
Example:
hostname(config)# mtu cluster 9000
Step 2
cluster group name
Example:
hostname(config)# cluster group pod1
Step 3
local-unit unit_name
Example:
hostname(cfg-cluster)# local-unit unit1
Step 4
cluster-interface interface_id ip
ip_address mask
Example:
hostname(cfg-cluster)# cluster-interface
port-channel2 ip 192.168.1.1 255.255.255.0
INFO: Non-cluster interface config is
cleared on Port-Channel2
Step 5
priority priority_number
Example:
hostname(cfg-cluster)# priority 1
Cisco ASA Series CLI Configuration Guide
1-40
1-40.
Purpose
Specifies the maximum transmission unit for the cluster control
link interface, between 64 and 65,535 bytes. The default MTU is
1500 bytes.
Note
This command is a global configuration command, but is also part
of the bootstrap configuration that is not replicated between units.
Names the cluster and enters cluster configuration mode. The
name must be an ASCII string from 1 to 38 characters. You can
only configure one cluster group per unit. All members of the
cluster must use the same name.
Names this member of the cluster with a unique ASCII string from
1 to 38 characters. Each unit must have a unique name. A unit with
a duplicated name will be not be allowed in the cluster.
Specifies the cluster control link interface, preferably an
EtherChannel. Subinterfaces and Management interfaces are not
allowed. See the
section on page 1-31
Specify an IPv4 address for the IP address; IPv6 is not supported
for this interface. This interface cannot have a nameif configured.
For each unit, specify a different IP address on the same network.
Sets the priority of this unit for master unit elections, between 1
and 100, where 1 is the highest priority. See the
Election" section on page 1-3
Chapter 1
Configuring Basic Bootstrap Settings and Enabling
We suggest setting the MTU to 1600 bytes or greater,
which requires you to enable jumbo frame reservation
before continuing with this procedure. See the
Jumbo Frame Support (Supported Models)" section on
page 1-33. Jumbo frame reservation requires a reload of
the ASA.
"Configuring Interfaces on the Master Unit"
for more information.
Configuring a Cluster of ASAs
"Enabling
"Master Unit