3Com 4500 Relationship Between a User and a User Interface , User Interface Index

1-2
Table 1-1 Description on user interface
User interface Applicable user Port used Remarks
AUX Users logging in through the
console port Console port
Each switch can
accommodate one AUX
user.
VTY Telnet users and SSH users Ethernet port
Each switch can
accommodate up to five
VTY users.
One user interface corresponds to one user interface view, where you can configure a set of parameters,
such as whether to authenticate users at login and the user level after login. When the user logs in
through a user interface, the connection follows these parameter settings, thus implementing
centralized management of various sessions.
Relationship Between a User and a User Interface
You can monitor and manage users logging in through different modes by setting different types of user
interfaces. Switch 4500 provides one AUX user interface and five VTY user interfaces.
z A user interface does not necessarily correspond to a specific user.
z When a user logs in, the system automatically assigns the user a free user interface with the
smallest number based on the user login mode. The login process of the user is restricted by the
configurations under this user interface.
z The user interface assigned to a user depending on the login mode and login time.
A user interface can be used by one user at one time, however, the user interface is not dedicated to a
specific user. For example, user A can use VTY 0 to log in to the device. When user A logs out, user B
can use VTY 0 to log in to the device.
User Interface Index
Two kinds of user interface index exist: absolute user interface index and relative user interface index.
1) The absolute user interface indexes are as follows:
z The absolute AUX user interfaces are numbered 0 through 7.
z VTY user interface indexes follow AUX user interface indexes. The first absolute VTY user
interface is numbered 8, the second is 9, and so on.
2) A relative user interface index can be obtained by appending a number to the identifier of a user
interface type. It is generated by user interface type. The relative user interface indexes are as
follows:
z AUX user interfaces are numbered from AUX0 to AUX7.
z VTY user interfaces are numbered VTY0, VTY1, and so on.
Switch 4500 supports XRN Fabric. A Fabric can contain up to eight devices. Accordingly, the AUX user
interfaces in a Fabric can be numbered from AUX0 to AUX7, through which all the console ports of the
units in a Fabric can be identified. Refer to the XRN Fabric part for information about Fabric.