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Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring Active/Active Failover
Configuring Active/Active Failover
Note
If you have more than one Active/Active failover pair on the same network, it is possible to have the
same default virtual MAC addresses assigned to the interfaces on one pair as are assigned to the
interfaces of the other pairs because of the way the default virtual MAC addresses are determined. To
avoid having duplicate MAC addresses on your network, make sure you assign each physical interface
a virtual active and standby MAC address for all failover groups.
You can also set the MAC address using other commands or methods, but we recommend using only one
method. If you set the MAC address using multiple methods, the MAC address used depends on many
variables, and might not be predictable.
Use the
show interface
command to display the MAC address used by an interface.
To configure specific active and standby MAC addresses for an interface, perform the following steps.
Detailed Steps
Example
The following partial example shows a possible configuration for a failover group:
hostname(config)#
failover group 1
hostname(config-fover-group)#
primary
hostname(config-fover-group)#
preempt 100
hostname(config-fover-group)#
exit
hostname(config)#
failover group 2
hostname(config-fover-group)#
secondary
hostname(config-fover-group)#
preempt 100
hostname(config-fover-group)#
mac address gigabitethernet1/0 0000.a000.a011 0000.a000.a012
hostname(config-fover-group)#
exit
hostname(config)#
Command
Purpose
Step 1
failover group
{
1
|
2
}
Example:
hostname(config)# failover group 1
Specifies the failover group.
Step 2
mac address
phy_if active_mac standby_mac
Example:
hostname(config-fover-group)# mac address
gigabitethernet1/0 0000.a000.a011
0000.a000.a012
Specifies the virtual MAC addresses for the active and standby
units.
The
phy_if
argument is the physical name of the interface, such as
GigabitEthernet1/0. On the ASASM, the
phy_if
specifies a
VLAN. The
active_mac
and
standby_mac
arguments are MAC
addresses in H.H.H format, where H is a 16-bit hexadecimal digit.
For example, the MAC address 00-0C-F1-42-4C-DE would be
entered as 000C.F142.4CDE.
The
active_mac
address is associated with the active IP address
for the interface, and the
standby_mac
is associated with the
standby IP address for the interface.
Summary of Contents for 5505 - ASA Firewall Edition Bundle
Page 28: ...Glossary GL 24 Cisco ASA Series CLI Configuration Guide ...
Page 61: ...P A R T 1 Getting Started with the ASA ...
Page 62: ......
Page 219: ...P A R T 2 Configuring High Availability and Scalability ...
Page 220: ......
Page 403: ...P A R T 2 Configuring Interfaces ...
Page 404: ......
Page 499: ...P A R T 2 Configuring Basic Settings ...
Page 500: ......
Page 533: ...P A R T 2 Configuring Objects and Access Lists ...
Page 534: ......
Page 601: ...P A R T 2 Configuring IP Routing ...
Page 602: ......
Page 745: ...P A R T 2 Configuring Network Address Translation ...
Page 746: ......
Page 845: ...P A R T 2 Configuring AAA Servers and the Local Database ...
Page 846: ......
Page 981: ...P A R T 2 Configuring Access Control ...
Page 982: ......
Page 1061: ...P A R T 2 Configuring Service Policies Using the Modular Policy Framework ...
Page 1062: ......
Page 1093: ...P A R T 2 Configuring Application Inspection ...
Page 1094: ......
Page 1191: ...P A R T 2 Configuring Unified Communications ...
Page 1192: ......
Page 1333: ...P A R T 2 Configuring Connection Settings and QoS ...
Page 1334: ......
Page 1379: ...P A R T 2 Configuring Advanced Network Protection ...
Page 1380: ......
Page 1475: ...P A R T 2 Configuring Modules ...
Page 1476: ......
Page 1549: ...P A R T 2 Configuring VPN ...
Page 1550: ......
Page 1965: ...P A R T 2 Configuring Logging SNMP and Smart Call Home ...
Page 1966: ......
Page 2059: ...P A R T 2 System Administration ...
Page 2060: ......
Page 2098: ...1 8 Cisco ASA Series CLI Configuration Guide Chapter 1 Troubleshooting Viewing the Coredump ...
Page 2099: ...P A R T 2 Reference ...
Page 2100: ......