Dtr Dialing For Synchronous Interfaces; Time Of Day Feature; Typical Use For Dial Services; Ethernet Backup - Enterasys Security Router X-PeditionTM User Manual

Table 10-1 lists V.25bis options. By default, the synchronous port will use V25bis. The functions of
these options are nation-specific, and they may have different implementations. Refer to your
modem documentation for a list of supported commands and options.
Table 10-1 ITU-T V.25bis Options
Option Description
: Wait tone
< Pause
= Separator 3 - national use
> Separator 4 - national use
P Dialing to be continued in pulse mode - optional parameter
T Dialing to be continued in DTMF mode - optional parameter
& Flash - optional parameter

DTR Dialing for Synchronous Interfaces

Dialer interfaces also support connections from synchronous serial lines through non-V.25bis
modems. Routers connected by non-V.25bis modems use data terminal ready (DTR) signaling
only, which can be configured in the dialer interface by issuing the
Interface mode. When using
not be passed to it.

Time of Day feature

A time of day feature can be configured when you use a dialer interface as a dialed backup line for
a primary leased line. When configuring the dialed backup line on the primary interface you can
time-range
issue the
of traffic on the line or whether the primary line is still down.

Typical Use for Dial Services

Dial services provide WAN connectivity on an economical, as-needed basis, either as a primary
link or as backup for a non-dial serial link. Employing dial backup involves setting up a secondary
serial interface as a backup to a primary serial interface. Dial services are employed solely for dial
backup purposes, as of this release.

Ethernet Backup

Failover support is available on FastEthernet/GigabitEthernet interfaces or sub-interfaces where it
is especially beneficial for PPPoE (DSL) redundancy. The
turns failover "on" while the
intervals to keep the port up or delay bringing it up. See
page 10-40 for an example.
dialer dtr , the dial string is stored in the external device and need
command to connect and disconnect the dial line during the day regardless
backup time-range
Asynchronous and Synchronous Support
dialer dtr
backup interface dialer
backup delay
and commands configure
"Configuration for Ethernet Failover"
command in
command
on
XSR User's Guide 10-3