Configuring And Enabling Fiber Interfaces; Default State Of Physical Interfaces - Cisco PIX 500 Series Configuration Manual

Chapter 5 Configuring Ethernet Settings, Redundant Interfaces, and Subinterfaces
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 5550 adaptive security appliance has two banks of ports;
the bank on the left is slot 1 and the bank on the right is slot 0.
The ASA 5500 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 (for
management purposes) 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.
(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.
Step 4 To enable the interface, enter the following command:
hostname(config-if)# no shutdown
To disable the interface, enter the shutdown command. If you enter the shutdown command, 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, the connectors used on the 4GE SSM or for built-in interfaces in slot 1 on the ASA
5550 adaptive security appliance are the RJ-45 connectors. To use the fiber SFP connectors, you must
set the media type to SFP. The fiber interface has a fixed speed and does not support duplex, but you can
set the interface to negotiate link parameters (the default) or not to negotiate.
This section includes the following topics:
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Default State of Physical Interfaces

By default, all physical interfaces are shut down. You must enable the physical interface before any
traffic can pass through it (either alone or as part of a redundant interface pair), or through a subinterface.
For multiple context mode, if you allocate an interface (physical, redundant, or subinterface) to a
context, the interfaces are enabled by default in the context. However, before traffic can pass through the
context interface, you must first enable the physical interface in the system configuration according to
this procedure.
OL-12172-03
Default State of Physical Interfaces, page 5-3
Configuring the Fiber Interface, page 5-4
Configuring and Enabling Fiber Interfaces
Cisco Security Appliance Command Line Configuration Guide
5-3