3com 3031 Instruccion De Instalación
AUX Interface
137
The parameter size is the MTU setting made on an asynchronous interface, which
is in the range of 128 to 1500 bytes and defaults to 1500 bytes.
is in the range of 128 to 1500 bytes and defaults to 1500 bytes.
Configuring the interval for sending keepalive packets
A serial interface detects the link state by sending keepalive packets to the remote
end at a specified regular interval.
end at a specified regular interval.
Perform the following configuration in serial interface view.
The keepalive packet sending interval defaults to 10 seconds.
AUX Interface
This section describes how to configure an AUX interface.
Introduction to AUX
Interface
AUX interface is a fixed interface provided by 3Com Routers. It can work as a
regular asynchronous serial interface at a speed up to 115200 bps. With this
interface, you can make remote configuration, implement line backup and some
other functions on the routers.
regular asynchronous serial interface at a speed up to 115200 bps. With this
interface, you can make remote configuration, implement line backup and some
other functions on the routers.
Configuring AUX
Interface
Perform the following tasks to configure the AUX interface:
■
Set link setup method
■
Set level detection
■
Set local loop
■
Set link layer protocol type
Setting link setup method
There are two link setup approaches available for the AUX interface. They are:
■
Protocol mode, with which the local end directly adopts the configured link
layer protocol parameters to set up a link with the remote end after setting up
a physical link.
layer protocol parameters to set up a link with the remote end after setting up
a physical link.
■
Flow mode, which is also known as interactive mode. With this approach, the
two ends set up a link by interacting with each other upon the setup of a
physical link. Specifically, the calling party sends the configuration commands
to the called party (it is equal to the operation of manually inputting
configuration commands at the remote end), sets the link layer protocol
operating parameters of the called party, and then sets up the link. This
approach is normally adopted in the event of man-machine interaction in dial
access. Users in interactive mode are also called EXEC users.
two ends set up a link by interacting with each other upon the setup of a
physical link. Specifically, the calling party sends the configuration commands
to the called party (it is equal to the operation of manually inputting
configuration commands at the remote end), sets the link layer protocol
operating parameters of the called party, and then sets up the link. This
approach is normally adopted in the event of man-machine interaction in dial
access. Users in interactive mode are also called EXEC users.
Perform the following to enter AUX interface view.
<3Com> interface aux 0
Table 150 Configuring the interval for sending keepalive packets
Operation
Command
Configure the interval for sending keepalive packets
timer hold seconds
Restore the default value of the interval for sending keepalive
packets
packets
undo timer hold