Cisco ASA Series Cli Configuration Manual page 332

Configuration Examples for ASA Clustering
There could be multiple EtherChannels configured in the network. The following diagram shows an
EtherChannel on the inside and one on the outside. An ASA is removed from the cluster if both primary
and secondary links in one EtherChannel fail. This prevents the ASA from receiving traffic from the
outside network when it has already lost connectivity to the inside network.
Outside
Inside
Interface Mode on Each Unit
cluster interface-mode spanned force
ASA1 Master Bootstrap Configuration
interface tengigabitethernet 0/6
channel-group 1 mode on
no shutdown
interface tengigabitethernet 0/7
channel-group 1 mode on
no shutdown
interface tengigabitethernet 0/8
channel-group 1 mode on
no shutdown
interface tengigabitethernet 0/9
channel-group 1 mode on
no shutdown
interface port-channel 1
description CCL
Cisco ASA Series CLI Configuration Guide
1-68
ASA1
Switch 3
ASA2
Virtual Switch Link
Router or
Access Switch
Chapter 1 Configuring a Cluster of ASAs
ASA3
Sw