Select [R] Reset all statistics, or [X] Exit to previous menu:

∙[B] Bandwidth Usage Report—This option displays the Bandwidth Usage Report, which displays port−by−port bandwidth usage:

Catalyst 1900 − Bandwidth Usage Report

—————————————————————— Information ————————————————————————————————

——————————————————————— Settings ————————————————————————————————————

Enter Selection:

∙ [X] Exit—This option returns you to the Main Menu.

Configuring Network Settings on the 1900 and 2820 Series

To configure a 1900 or 2820 series switch, follow these steps:

1. Plug in your switch. You should see the following display:

Catalyst 1900 Management Console

Copyright (c) Cisco Systems, Inc.1993−1999

All rights reserved.

Standard Edition Software

Ethernet address: 00−F0−1D−30−BB−C2

PCA Number: 25−41329−10

PCA Serial Number: NBB02404421 Model Number: WS−C1924−A

System Serial Number: BBB02304561

———————————————————

User Interface Menu [M] Menus

[I] IP Address

[P] Console Password Enter Selection:

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The following list describes the three menu options:

♦[M] Menus—Displays the switch’s Main Menu.

♦[I] IP Address—Available at log−on if the switch does not have a password configured.

♦[P] Console Password—Allows you to enter an unencrypted privileged−level password to the switch management interface. This option is available at log−on only if the switch does not have a password. The password must be at least four characters and no more than eight characters long.

2.Choose selection [I] and enter an IP address that you have already predefined. Once you have completed the IP configuration, you need to select [S] from the following menu to enter the subnet mask for your segment:

Catalyst 1900 − IP Configuration

Ethernet Address: 00−B0−64−75−65−40

——————————— Settings ———————————————————————————————————————

——————————— Actions ———————————————————————————————————————

[P] Ping

[C] Clear cached DNS entries [X] Exit to previous menu

Enter Selection:

3.Enter the Default Gateway by selecting [G]. This option will let you enter the DG information.

4.By default, the management VLAN is set to VLAN1. If you selected another VLAN prior to this configuration, you should verify that the correct management VLAN value is set.

5.Enter the DNS information by selecting [M] to enter the primary DNS server and then selecting [N] to enter the secondary DNS server.

6.Select [D]. You will be prompted to enter the name of the domain into which the switch falls.

7.Routing Information Protocol (RIP) is enabled by default. Because all changes are in real time, you can use one of the actions to verify connectivity. Select [P] (ping); then, if you have a client attached to your switch, try to ping a host on that particular subnet. If you can do so, your configuration was successful.

Configuring Broadcast Storm Control on Switch Ports

The 1900 and 2820 series switches use one configuration for the entire switch; the configuration isn’t port by port as with other Catalyst series switches. Therefore, all ports will use the same configuration. When you make a change to the Broadcast Storm Control menu it will affect all the ports on the switch. The following shows the Broadcast Storm Control menu:

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[X] Exit to previous menu

Enter Selection:

This menu allows you to control the propagation of broadcasts to each port. The following list gives a brief description of each setting:

∙[A] Action upon exceeding broadcast threshold—Indicates what action will be taken in the event that the broadcast number threshold is exceeded. There are two settings: Option I ignores the excess broadcasts, and option B blocks them until the number of broadcasts becomes lower than the threshold setting.

∙[G] Generate alert when threshold exceeded—Controls whether an SNMP trap is sent when the broadcast threshold has been exceeded. Two options are available: E (enabled) and D (disabled).

∙[T] Broadcast Threshold (BC’s received / sec)—Sets the broadcast threshold in broadcasts per second. The possible settings are 10 to 14,400; the default is 500 per second.

∙[R] Broadcast re−enable threshold—Indicates the number of broadcasts per second at which the port will re−enable after an instance in which the threshold maximum disabled the port. The possible settings are 10 to 14,400; the default is 500 per second.

∙[X] Exit to previous menu—Returns you to the System Configuration menu.

Configuring SNMP on the 1900 Series

To configure SNMP on the 1900 series switch, start from the Main Menu and do the following:

1.Select option [N] to go into the Network Management Menu. The following shows the Network Management menu:

Catalyst 1900 − Network Management

[I] IP Configuration

[S] SNMP Management

[B]Bridge − Spanning Tree

[C]Cisco Discovery Protocol

[G]Cisco Group Management Protocol

[H]HTTP Server Configuration

[R] Cluster Management

[X] Exit to Main Menu

Enter Selection:

2. Select [S] to enter the SNMP configuration menu, which looks like the following:

Catalyst 1900 − Network Management (SNMP) Configuration

[R] READ configuration

[W]WRITE configuration

[T]TRAP configuration

[X]Exit to previous menu

Enter Selection:

3.This menu has options to give a client read or write access to the local SNMP log files on the switch. Let’s say we want to configure a read string for remote clients to access 1900 switch SNMP log files. And we want to change it from the default Public string to Techs. To do so, select [R], and then choose [1] to change the first string:

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Catalyst 1900 − Network Management (SNMP) READ Configuration

——————————————————————— Settings —————————————————

[1]First READ community string

[2]Second READ community string

[3]Third READ community string

[4]Fourth READ community string

[X] Exit to previous menu

Enter Selection: 1

This command configures the community string the switch will recognize on all SNMP read

Enter READ community string:

Current setting ===> public

New setting ===> Techs

4.Remember that all SNMP traps are case sensitive, so you will want to have your SNMP configurations well documented to reduce human error. Once your community string has been set you will return to the previous menu.

5.Choose [X] to exit from the previous menu. We will now configure a Write Manager to allow write access to the SNMP log files and MIB objects. Select [W] from the Network Management SNMP configuration menu, and then [A] from the Network Management (SNMP) WRITE Configuration menu. Your screen should look like the following:

Catalyst 1900 − Network Management (SNMP) WRITE Configuration

——————————————————————— Settings ——————————————————

[1]First WRITE community string

[2]Second WRITE community string

[3]Third WRITE community string

[4]Fourth WRITE community string

[A]First WRITE manager name or IP address

[B]Second WRITE manager name or IP address

[C]Third WRITE manager name or IP address

[D]Fourth WRITE manager name or IP address

[X] Exit to previous menu

Enter Selection: A

SNMP Write Manager is the management station allowed to issue write (Set) requests to th

Enter First Write Manager name or IP address:

Current setting ===>

New setting ===> 63.78.39.84

6.Notice that we have selected the Write Manager management station with the IP address 63.78.39.84. This will be the only client that has write access to the MIB objects and log files. After entering this information your screen will refresh and should look like this:

Catalyst 1900 − Network Management (SNMP) WRITE Configuration

——————————— Settings ——————————————————

[1]First WRITE community string

[2]Second WRITE community string

[3]Third WRITE community string

[4]Fourth WRITE community string

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[D] Fourth WRITE manager name or IP address

[X]Exit to previous menu

7.At this point you can select option [1] and configure the WRITE community string and change the default community string from “private” to “techwrite,” as we did in the following:

Catalyst 1900 − Network Management (SNMP) WRITE Configuration

—————————————————————— Settings ——————————————————

[1]First WRITE community string

[2]Second WRITE community string

[3]Third WRITE community string

[4]Fourth WRITE community string

[X] Exit to previous menu

Enter Selection: 1

This command configures the community string the switch will recognize on all SNMP read/

Enter WRITE community string:

Current setting ===> private

New setting ===> techwrite

8.Again, once you have entered the new setting, your screen will automatically refresh. At this point, enter option [X] and return to the SNMP configuration menu.

9.At the Network Management (SNMP) Configuration Menu, select [T]. This will allow you to configure the trap message configuration settings:

Catalyst 1900 − Network Management (SNMP) Configuration

[R] READ configuration

[W]WRITE configuration

[T]TRAP configuration

[X]Exit to previous menu

Enter Selection: T

Catalyst 1900 − Network Management (SNMP) TRAP Configuration

——————————— Settings ——————————————————

[1] First TRAP community string

[A] First TRAP manager name or IP address

[2] Second TRAP community string

[B] Second TRAP manager name or IP address

[3] Third TRAP community string

[C] Third TRAP manager name or IP address

[4] Fourth TRAP community string

[D] Fourth TRAP manager name or IP address

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