Configuring And Enabling Fiber Interfaces - Cisco FirePOWER ASA 5500 series Configuration Manual

Configuring and Enabling Fiber Interfaces

phase. Either the speed or duplex must be set to auto-negotiate to enable Auto-MDI/MDIX for the
interface. If you explicitly set both the speed and duplex to a fixed value, thus disabling auto-negotiation
for both settings, then Auto-MDI/MDIX is also disabled.
To enable the interface, or to set a specific speed and duplex, perform the following steps:
To specify the interface you want to configure, enter the following command:
Step 1
hostname(config)# interface physical_interface
The physical_interface ID includes the type, slot, and port number as type[slot/]port.
The physical interface types include the following:
•
•
For the PIX 500 series security appliance, enter the type followed by the port number, for example,
ethernet0.
For the ASA 5500 series adaptive security appliance, enter the type followed by slot/port, for example,
gigabitethernet0/1. Interfaces that are built into the chassis are assigned to slot 0, while interfaces on
the 4GE SSM are assigned to slot 1.
The ASA 5500 series adaptive security appliance also includes the following type:
•
(Optional) To set the speed, enter the following command:
Step 2
hostname(config-if)# speed {auto | 10 | 100 | 1000 | nonegotiate}
The auto setting is the default. The speed nonegotiate command disables link negotiation.
(Optional) To set the duplex, enter the following command:
Step 3
hostname(config-if)# duplex {auto | full | half}
The auto setting is the default.
To enable the interface, enter the following command:
Step 4
hostname(config-if)# no shutdown
To disable the interface, enter the shutdown command. If you enter the shutdown command for a
physical interface, you also shut down all subinterfaces. If you shut down an interface in the system
execution space, then that interface is shut down in all contexts that share it.
Configuring and Enabling Fiber Interfaces
This section describes how to configure Ethernet settings for physical interfaces, and how to enable the
interface. By default, all physical interfaces are shut down. You must enable the physical interface before
any traffic can pass through it or through a subinterface. For multiple context mode, if you allocate a
Cisco Security Appliance Command Line Configuration Guide
5-2
ethernet
gigabitethernet
management
The management interface is a Fast Ethernet interface designed for management traffic only, and is
specified as management0/0. You can, however, use it for through traffic if desired (see the
management-only command). In transparent firewall mode, you can use the management interface
in addition to the two interfaces allowed for through traffic. You can also add subinterfaces to the
management interface to provide management in each security context for multiple context mode.
Chapter 5 Configuring Ethernet Settings and Subinterfaces
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