Specifications

Overview of Modem Interfaces
Logical Constructs in Modem Configurations
DC-59
Cisco IOS Dial Technologies Configuration Guide
In the following sample display, absolute line numbers are listed at the far left. Relative line numbers are
in the third column, after the line type. The second virtual terminal line, vty 1, is absolute line number
3. Compare the line numbers in this sample display to the output from the show line command.
Line User Host(s) Idle Location
0 con 0
1 aux 0
2 vty 0 incoming 0 SERVER.COMPANY.COM
3 vty 1
4 vty 2
5 vty 3
6 vty 4
On the Cisco AS5350, AS5400, AS5800, AS5850 access servers, you can view the absolute and relative
line numbers with the following commands:
• show users all | exclude tty | interface to show the non-internal modem lines
• show controller async | include tty to show the internal modem lines
The following example shows the information displayed with the show users all | exclude tty|Interface
command:
Router# show users all | exclude tty | Interface
Line User Host(s) Idle Location
* 0 con 0 idle 00:00:00
1 aux 0 00:00:00
2 vty 0 00:00:00
3 vty 1 00:00:00
4 vty 2 00:00:00
5 vty 3 00:00:00
6 vty 4 00:00:00
The following example shows the information displayed with the show controller async | include tty
command:
Router# show controller async | include tty
Controller information for Async2/00 (tty324)
Controller information for Async2/01 (tty325)
Controller information for Async2/02 (tty326)
.
.
.
Compare the line numbers in this sample display to the output from the show line command.
Line and Modem Numbering Issues
The tty line numbering scheme used by your access server or router is specific to your product and its
hardware configuration. Refer to the product-specific documentation that came with your product for
line numbering scheme information.
For example, the Cisco AS5200 access server has tty lines that map directly to integrated modems, as
shown in Table 5. Depending on the shelf, slot, and port physical architecture of the access server, the
modem and tty line number schemes will change.
As shown in Table 5, physical terminal lines 1 through 24 directly connect to modems 1/0 through 1/23,
which are installed in the first chassis slot in this example. Physical terminal lines 25 through 48 directly
connect to modems 2/0 through 2/23, which are installed in the second slot.