LA TELEVISIÓN Y LOS HÁBITOS ALIMENTICIOS

¥ Access the Web interface over a TCP/IP network, using a standard Web browser (such as Netscape Navigatorª 3.0 or greater, or Microsoft Internet Explorerª 3.0 or greater).

¥ Use an SNMP Network Manager over a network running the IP protocol.

The Switch can support up to four user sessions concurrently (for example, one console port, one Web session, and two Telnet connections).

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The command-line interface built into the Switch is accessible by way of the 9-pin, RS-232 console port located on the rear of the unit.

For more information on the console port pin-outs, refer to Chapter 2.

Once the connection is established, you will see the system prompt and you may log in.

USING TELNET

Any workstation with a Telnet facility should be able to communicate with the Switch over a TCP/IP network. Up to three active Telnet sessions can access the Switch concurrently. The Telnet connection will time out after three minutes of inactivity. If a connection to a Telnet session is lost inadvertently, the Switch terminates the session within three minutes.

Before you can start a Telnet session, you must set up the IP parameters described in the section ÒConÞguring Switch IP Parameters,Ó later in this chapter. Telnet is enabled by default.

To open the Telnet session, you must specify the IP address of the device that you want to manage. Check the user manual supplied with the Telnet facility if you are unsure of how to do this.

USINGA BOOTP SERVER

If you are using IP and you have a BOOTP server set up correctly on your network, you must add the following information to the BOOTP server:

¥ Switch Media Access Control (MAC) address

¥ IP address

¥ Subnet address mask (optional)

¥ Default gateway

The Switch MAC address is found on the rear label of the Switch.

Once this is done, the IP address, subnetwork mask, and default gateway for the Switch will be downloaded automatically. You can then start managing the Switch without further conÞguration.

You can enable BOOTP on a per-VLAN basis by using the following command:

enable bootp vlan [<name> | all]

By default, BOOTP is enabled on the default VLAN.

MANUALLY CONFIGURINGTHE IP SETTINGS

If you are using IP without a BOOTP server, you must enter the IP parameters for the Switch in order for the SNMP Network Manager or Telnet software to communicate with the device. To assign IP parameters to the Switch, you must do the following:

¥ Log in to the Switch with administrator privileges.

¥ Assign an IP address and subnetwork mask to a VLAN.

The Switch comes conÞgured with a default VLAN named default. To use Telnet or an SNMP Network Manager, you must have at least one VLAN on the Switch, and it must be assigned an IP address and subnetwork mask. IP addresses are always assigned to a VLAN. The Summit can be assigned multiple IP addresses.

For information on creating and configuring VLANs, refer to Chapter 5.

To manually conÞgure the IP settings, perform the following steps:

1 Connect a terminal or workstation running terminal emulation software to the console port.

USING TELNET

3 At the login prompt, enter your user name and password. Note that they are both case-sensitive. Ensure that you have entered a user name and password with administrator privileges.

Ñ If you are logging in for the Þrst time, use the default user name admin to log in with administrator privileges. For example:

login: admin

Administrator capabilities enable you to access all Switch functions. The default user names have no passwords assigned. For more information on switch security, refer to ÒConÞguring Management Access,Ó on page 3-1.

Ñ If you have been assigned a user name and password with administrator privileges, enter them at the login prompt.

4 At the password prompt, enter the password and press [Return].

When you have successfully logged in to the Switch, the command-line prompt displays the name of the Switch in its prompt.

5 Assign an IP address and subnetwork mask for the default VLAN by using the following command:

config vlan <name> ipaddress <ipaddress> {<subnet_mask>} {<metric>}

For example:

config vlan default ipaddress 123.45.67.8 255.255.255.0 1 Your changes take effect immediately.

6 ConÞgure the default route for the Switch using the following command:

config iproute add default <ipaddress> {<metric>}

For example:

config iproute add default 123.0.0.1

7 Save your conÞguration changes so that they will be in effect after the next Switch reboot, by typing

save

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The administrator-level account can disconnect a management session that has been established by way of a Telnet connection. If this happens, the user logged in by way of the Telnet connection is notiÞed that the session has been terminated.

To terminate a Telnet session, follow these steps:

1 Log in to the Switch with administrator privileges.

2 Determine the session number of the session you want to terminate by typing show session

Sample output from the show session command is as follows: show session:

0 Wed Sep 17 20:48:38 1997 admin console serial 4 Wed Sep 17 21:52:16 1997 admin telnet 192.208.37.26

3 Terminate the session by using the following command:

clear session <session_number>

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By default, Telnet services are enabled on the Switch. You can choose to disable Telnet by entering

disable telnet

To re-enable Telnet on the Switch, at the console port enter enable telnet

You must be logged in as an administrator to enable or disable Telnet.