Filter
Top Products
15-31
Cisco ASDM User Guide
OL-16647-01
Chapter 15 High Availability
Field Information for the Failover Panes
–
Active MAC Address—Displays the MAC address for the interface and failover group on the
unit where the failover group is active.
–
Standby MAC Address—Displays the MAC address for the interface and failover group on the
unit where the failover group is in the standby state.
• Add—Displays the Add Interface MAC Address dialog box. You cannot assign virtual MAC
addresses to the LAN failover and Stateful Failover interfaces. See Add/Edit Interface MAC
Address for more information.
• Edit—Displays the Edit Interface MAC Address dialog box for the selected interface. See Add/Edit
Interface MAC Address for more information.
• Delete—Removes the currently selected interface from the MAC addresses table. There is no
confirmation or undo.
Modes
The following table shows the modes in which this feature is available:
For More Information
For more information about failover in general, see Understanding Failover.
Add/Edit Interface MAC Address
Use the Add/Edit Interface MAC Address dialog box to define the active and standby virtual MAC
addresses for the interfaces in a failover group. If you do not specify a virtual MAC address for an
interface, the interface is given a default virtual MAC address as follows:
• Active unit default MAC address: 00a0.c9physical_port_number.failover_group_id01.
• Standby unit default MAC address: 00a0.c9:physical_port_number.failover_group_id02.
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.
These MAC addresses override the physical MAC addresses for the interface.
Fields
• Physical Interface—Specifies the physical interface for which you are defining failover virtual MAC
addresses. Because the MAC addresses do not change for the LAN failover and Stateful Failover
interfaces during failover, you cannot choose these interfaces.
• MAC Addresses—Contains the fields for specifying the active and standby virtual MAC addresses
for the interface.
Firewall Mode Security Context
Routed Transparent Single
Multiple
Context System
• •—— •