Allied Telesis AT-S26 - Manual (Page 33)

AT-S26 Version 2.0.1 User’s Guide
33
Starting a Remote Omega Session with Telnet or an SNMP
Management Program
A switch can be managed with the Telnet program or with an SNMP
management program, such as HP Openview. This type of switch
management is referred to as remote management.
If the switch is in a TCP/IP environment, remote management is possible
only after the switch has been assigned an IP address and subnet mask.
Initially, this is accomplished by managing the switch locally through the
RS232 port.
Starting a Telnet management session involves specifying the IP address
of the switch with the Telnet utility. You then enter the Omega
password, if one has been assigned, after which the Omega main menu
is displayed. For instructions on using the Telnet utility, refer to the
documentation that came with the utility.
For non-IP environments, you can use MAC addresses to connect to
remote Allied Telesyn switches as long as there are no routers between
the two switches.
It is important to note that you can have only one Telnet session
operating at any one time. The session can be either inbound or
outbound. If you have an inbound session to Omega, you do not have
the option of starting a new session (outbound connection). Therefore, if
you are already using Telnet, the Omega menu selection Connect to a
remote system will not be available (described in detail in Connecting to
a Remote Switch on page 34). In addition, a local RS232 connection
blocks a Telnet session and vice versa.
If you are currently in a Telnet session, you must disconnect Telnet after
quitting Omega. Otherwise, future Telnet sessions to the switch will be
blocked. You can configure a timeout value so that the switch
automatically disconnects Telnet sessions after a period of inactivity.
Refer to Specifying a Timeout Value on page 134.
Note
For a description of the Omega main menu, refer to the section
Omega Main Menu on page 24.
If you intend to manage the switch from a management station using an
SNMP management program, you need to load the switch’s
Management Information Base (MIB) file onto the management station.
(The MIB file is available from the Allied Telesyn web site.) This requires
that you use a MIB compiler to compile the file. To load the MIB file onto
a management station, follow the instructions included with your MIB
compiler.