H3C MSR 20/30/50 Series Routers User Manual
Chapter 3 Logging onto MSR Series Routers
3.2 Introduction to User Interface
3.2.1 User Interface Supported on MSR Series Routers
Table 3-1
Introduction to user interface
User interface
Corresponding
user
Port type
Description
Console user
interface
User logging
through Console
port
Console port
There is only one
Console user for
each router
TTY user interface
User logging
through TTY
interface
TTY interface
Different products
support different
numbers of users.
Use the
display
user-interface
command to check
it.
AUX user interface
User logging
through AUX port
AUX port
There is only one
AUX user for each
router
VTY user interface
Telnet user and
SSH user
Ethernet interface
Up to five VTY
users can be
supported by each
router.
3.2.2 User Interface Numbering for the Router
User interface of the system falls into four categories, and is arranged in certain order:
They are Console (CON), Auxiliary port (AUX), virtual interface (VTY) and physical
terminal interface (TTY).There is only one user interface for console and auxiliary port,
while multiple user interfaces for VTY and TTY interface, each type of these multiple
user interfaces being arranged in order.
User interface is numbered in the following two ways: absolute number and relative
number.
1) Absolute
number
The beginning number of absolute number is 0 (Namely, Console port), and the rest
interfaces can be deduced by analogy. Console port and Aux port occupy one number
respectively; For VTY interface and TTY interface, different products support different
numbers of user interfaces. Use the
display user-interface
command to view them.
Absolute number can uniquely specify one user interface or one group of user
interfaces.
z
Console user interface is numbered 0.
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