Numbering User Interfaces; User Interface Configuration Task List - 3Com MSR 50 Series Configuration Manual

2156 C 120: U
HAPTER SER
Numbering User
Interfaces
User Interface
Configuration Task
List
I C
NTERFACE ONFIGURATION
Console port: A view which you log in from the console port. Console port is a
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line device port. The device has only one console port, with the port type as
EIA/TIA-232 DCE.
AUX port: A view which you log in from the AUX port. AUX port is also a line
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device port. The device has only one AUX port of EIA/TIA-232 DTE type. This
port is usually used for dialup access via modem.
TTY (true type terminal): A view which you log in through TTY, namely, via an
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asynchronous serial port or synchronous/asynchronous serial port (working in
asynchronous mode).
VTY (Virtual Type Terminal): A view which you log in through VTY. VTY port is a
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logical terminal line used when you access the device by means of Telnet or
SSH. Currently, each device supports up to five VTY users to access
simultaneously.
User interfaces can be numbered in two ways: absolute numbering and relative
numbering.
Absolute numbering
Absolute numbering allows you to uniquely specify a user interface or a group of
user interfaces. The numbering system starts from number 0 (representing the
Console port), and followed by 1 (representing TTY 1), till n+1 (representing TTY
n), which is then followed by n+2 to represent the AUX port, and then n+3 to
represent VTY 1, and so on.
n
The numbering approach numbers the four types of user interfaces in the
sequence of: Console port, TTY, AUX port and VTY. The Console interface and the
AUX interface each occupy a number as there is only one Console port and one
AUX port. Depending on the device model, there can be different numbers of TTY
and VTY user interfaces and each of them is numbered accordingly. You can use
the display user-interface command to view the number of the user interfaces.
Relative numbering
Relative numbering numbers a user interface in the form of "user interface type +
number". In this way, it can specify a user interface or a group of user interfaces of
a specific type. This form of number is valid only when used under that type of
user interface. It makes no sense when used under other types of user interfaces.
The rules of relative numbering are as follows:
CON is numbered CON 0.
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AUX is numbered AUX 0.
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TTYs are numbered from 1 in ascending order, with a step of 1.
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VTYs are numbered from 0 in ascending order, with a step of 1.
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Complete these tasks to configure user interface:
Task
"Configuring Asynchronous Serial Interface Attributes" on page 2157
"Configuring Terminal Attributes" on page 2157
"Configuring Modem Attributes" on page 2158
Remarks
Optional
Optional
Optional