Cisco Cisco FirePOWER Appliance 8130
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FireSIGHT System User Guide
Chapter 6 Managing Devices
Configuring Interfaces
The range within which you can set the MTU can vary depending on the FireSIGHT System device
model and interface type. See
model and interface type. See
for more information.
Step 7
Click
Save
.
Your changes are saved. Note that your changes do not take effect until you apply the device
configuration; see
configuration; see
for more information.
Configuring HA Link Interfaces
License:
Any
Supported Devices:
Series 3
After you establish a device cluster, you can configure a physical interface as a high availability (HA)
link interface. This link acts as a redundant communications channel for sharing health information
between the clustered devices. When you configure an HA link interface on one device, you
automatically configure an interface on the second device. You must configure both HA links on the
same broadcast domain. See
link interface. This link acts as a redundant communications channel for sharing health information
between the clustered devices. When you configure an HA link interface on one device, you
automatically configure an interface on the second device. You must configure both HA links on the
same broadcast domain. See
for more information.
Dynamic NAT relies on dynamically allocating IP addresses and ports to map to other IP addresses and
ports. Without an HA link, these mappings are lost in a failover, causing all translated connections to fail
as they are routed through the now active device in the cluster.
ports. Without an HA link, these mappings are lost in a failover, causing all translated connections to fail
as they are routed through the now active device in the cluster.
Caution
Changing the maximum transmission unit (MTU) interrupts traffic on the device. The range within
which you can set the MTU can vary depending on the FireSIGHT System device model and interface
type. See
which you can set the MTU can vary depending on the FireSIGHT System device model and interface
type. See
for more information.
To configure an HA link interface:
Access:
Admin/Network Admin
Step 1
Select
Devices > Device Management
.
The Device Management page appears.
Step 2
Next to the clustered device where you want to configure the HA link interface, click the edit icon (
).
The Interfaces tab for that device appears.
Step 3
Next to the interface you want to configure as a HA link interface, click the edit icon (
).
The Edit Interface pop-up window appears.
Step 4
Click
HA Link
to display the HA link options.
Step 5
Select the
Enabled
check box to allow the HA link interface to provide link.
If you clear the check box, the interface becomes disabled and administratively taken down.
Step 6
From the
Mode
drop-down list, select an option to designate the link mode or select
Autonegotiation
to
specify that the interface is configured to autonegotiate speed and duplex settings.
Step 7
From the
MDI/MDIX
drop-down list, select an option to designate whether the interface is configured for
MDI (medium dependent interface), MDIX (medium dependent interface crossover), or Auto-MDIX.
Normally, MDI/MDIX is set to
Auto-MDIX
, which automatically handles switching between MDI and
MDIX to attain link.