Black Box LBG1000A-R2 Manual do Utilizador descarregar pdf (Página 15)

Manageable Gigabit Switch

User’s Manual 15

This management method is often preferred because you can remain connected and monitor the system during system

reboots. Also, certain error messages are sent to the serial port, regardless of the interface through which the associated

action was initiated. A Macintosh or PC attachment can use any terminal-emulation program for connecting to the terminal

serial port. A workstation attachment under UNIX can use an emulator such as TIP.

Modem Access

You can access the switch’s administration console from a PC or Macintosh using an external modem attached to the

console port. The switch management program provides Console Port screen, accessible from the Basic Management

screen, that lets you configure parameters for modem access.

When you have configured the external modem from the administration console, the switch transmits characters that you

have entered as output on the modem port. The switch echoes characters that it receives as input on the modem port to the

current administration console session. The console appears to be directly connected to the external modem.

Web Management

The switch provides a browser interface that lets you configure and manage the switch remotely.

After you set up your IP address for the switch, you can access the switch’s web interface applications directly in

your web browser by entering the IP address of the switch. You can then use your web browser to list and manage

switch configuration parameters from one central location, just as if you were directly connected to the switch’s

console port.

Web Management requires either Microsoft Internet Explorer 4.01 or later or Netscape Navigator 4.03 or later.

SNMP-Based Network Management

You can use an external SNMP-based application to configure and manage the switch. This management method

requires the SNMP agent on the switch and the SNMP Network Management Station to use the same community

string. This management method, in fact, uses two community strings: the get community string and the set

community string. If the SNMP Network management station only knows the set community string, it can read and

write to the MIBs. However, if it only knows the get community string, it can only read MIBs. The default get and

set community strings for the switch are public.

Protocols

The switch supports the following protocols:

VIRTUAL TERMINAL PROTOCOLS, SUCH AS TELNET

A virtual terminal protocol is a software program, such as Telnet, that allows you to establish a management session from a

Macintosh, a PC, or a UNIX workstation. Because Telnet runs over TCP/IP, you must have at least one IP address configured on

the switch before you can establish access to it with a virtual terminal protocol.

<Note> Terminal emulation is different from a virtual terminal protocol in that you must connect a terminal directly to the console port.

SIMPLE NETWORK MANAGEMENT PROTOCOL (SNMP)

SNMP is the standard management protocol for multivendor IP networks. SNMP supports transaction-based queries that allow the

protocol to format messages and to transmit information between reporting devices and data-collection programs. SNMP runs on

top of the User Datagram Protocol (UDP), offering a connectionless-mode service.

Management Architecture

All of the management application modules use the same Messaging Application Programming Interface (MAPI).

By unifying management methods with a single MAPI, configuration parameters set using one method (e.g. console

port) are immediately displayed the other management methods (e.g. SNMP agent of web browser).

The management architecture of the switch adheres to the IEEE open standard. This compliance assures customers

that the switch is compatible with, and will interoperate with other solutions that adhere to the same open standard.

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