Web / SNMP Intelligent Products
WGSW-800 8-Port Gigabit Ethernet SwitchChapter 3 Web-Based Management
3.1 Configuration
The management function of this interface runs as an unsigned Java applet. As a result, your browser's security setting should be set as following:
For Netscape 4 or later:
- Click on Edit
- Pick up Preferences item
- Select the Advanced category
- Make sure Enable Java is checked
- Make sure Enable JavaScript is checked
- Press OK
For Internet Explorer 4:
- Click on View
- Pick up Internet Options
- Select the Security tab
- Set Zone to Local Intranet
- Click Add Sites, click Advanced and add the IP address of the switch to the zone
- Set the security level to Custom
- Press the Setting button
- Scroll down and set Java permissions to Custom
- Press the Java Custom Settings button
- Select the Edit Permissions tab
- Set Run Unsigned Content to Enable
- Press OK for all open dialog windows
For Internet Explorer 5:
- Click on Tools
- Pick Internet Options
- Select the Security tab
- Select Local Intranet (click on the icon)
- Click on Sites, click Advanced and add the IP address of the switch to the zone
- Click on Custom Level
- Scroll down and set Java Permissions to Custom
- Press the Java Custom Settings button
- Select the Edit Permissions tab
- Set Run Unsigned Content to Enable
- Press OK for all open dialog windows
3.2 Features
There are features and characteristics of the web interface whose functionality and meanings are consistent throughout and worth mentioning.
Easy to change folders for intuitive navigation Informational messages will print out at the bottom of the screens Error messages will be printed in red Buttons featured are:
- Refresh: Pulls that screens data from current values on the system
- Submit: Submits change request to system and refreshes screen data
- Add: Adds new entries to table information and refreshes screen data
- Remove: Removes selected entries from table and refreshes screen data
Before connecting to the switch via a web browser (i.e. Netscape Navigator), a login screen will appear prompting for an administrator password (only if the password is enabled). The User Name will always be root. Enter the password to access the switchs management mode. Once the password is entered correctly, the front page will appear.
Figure 3-1: Web Interface front page
Note: If password protection is enabled (using the console) without setting your own password, the default password is "switch".
Upon connecting to the switch via a web browser (i.e. Netscape Navigator), a login screen will appear prompting for an administrator password. (Figure 3-2) The User Name will always be root. Enter the password to access the switchs management mode. Once the password is entered correctly, the front page will appear (Figure 3-1). If the LEDs on the web page do not show up as green, the Java settings for the web browser is not set up correctly. Section 3.1 covers how to correctly setup Java for the web interface.
Figure 3-2 : Menu Screen
After the password is entered you will see the main menu screen. (Figure 3-2)
There are five system icons that are available:
- Introduction
- System Manager
- Port Manager
- Address Manager
- Spanning Tree
- VLAN Setup
- Port Mirroring
- SNMP Management
- Statistics
The Introduction will explain the proper procedure for setting up the web interface. Make sure that the Java settings for your web browser have been setup correctly. If the Java is not set up correctly the web page will not work correctly.
3.5. System Manager
The system manager contains all system operations and general information. It is organized with several sub-folders:
General Info General system information and administration IP Settings IP parameters Password Settings Disable/Enable the password protection or change the password NVRAM Settings Save the setting or Reset the switch to factory default Firmware Upgrade Setup for TFTP download the latest firmware Reset Reset the switch
3.5.2 IP SettingsThe following fields are accessible under the general info page:
System Description System Name System Contact System Location MAC Address There are three fields that are site specific and can be modified by the system administrator:
The local system name System administrators name and contact information Physical location of the system Notice that there are two buttons, Submit and Refresh, in the lower part of the window. The Refresh button is used for reloading values while the Submit button is for saving values to the Switch.
Figure 3-3: General: System Information
There are three tunable parameters to be set by the system administrator.
Enter site-specific IP address, Gateway address and Net mask Click Apply to change the IP settings Save Configuration to NVRAM and reset the system to implement the changes Figure 3-4: System Manager: IP Settings
3.5.3 Password Admin
The password entered is encrypted on the screen and will display as a sequence of asterisks (*).
Type the new administrator password in the New password field
- Type the same password in the Verify field
- Click Apply to activate the new password
Note: Password protection is optional and can only be enabled through the console interface. If the password protection is enabled without setting your own password, the default password is switch.
Figure 3-5: System Manager: Password Admin
3.5.4 NVRAM Admin
After making any changes to the screens within the Web Interface, users must save the changed settings to NVRAM. This is done in the system administration screen in order for the new settings to remain after a system reboot.
Save Configuration to NVRAM
- Click on the Save button to save configuration to NVRAM.
Restore Defaults
- Click on Restore Defaults to reset switch parameters to their original default settings. In order for changes to occur, you must Reset the switch. Note: network IP settings (i.e. IP address, Gateway Address, Network Mask) will not be affected by this command.
Figure 3-6: System Manager: NVRAM Admin
3.5.5 Firmware Upgrade
In the Firmware Upgrade screen, the system can be configured to download and boot from a new image off the network. (Please refer to Chapter 5 when updating software)
Click the arrow in the box at Boot from and click the Net option. Supply the IP address of the TFTP server and the full path and the filename of the image to be loaded from that server. Click the Apply button. Save the configuration to NVRAM and reset the switch. The image will load-up automatically after the switch resets.
Figure 3-7: System Manager: Firmware Upgrade
3.5.6 Reset
In this screen the user can reset (power cycle) the switch. This is primarily used to upgrade the firmware or restore defaults.
Figure 3-8: System Manager: Reset
3.6 Port Manager
This page will allow access to the port parameters. The parameters available are as follows:
- Port Number
- Port Name
- Link Status
- Port Enable
- Port State
- Auto Negotiation
- Speed and Duplex
- Flow Control
- HOL Blocking
- Source Security
Figure 3-9: Port Manager
3.7 Address Manager
3.7.1 Static Address
Any system, whose MAC address and the port number are listed in this screen, will not be purged from the systems forwarding table by the ageing process.
Add a new entry
- Enter the MAC address and port in the appropriate boxes
- Click Add
Remove an exist entry
- Highlight that entry in the table, by clicking on the MAC address
- Choose Remove
Figure 3-10: Address Manager: Static Address
3.7.2 Address Ageing
Ageing Time is a variable that must be configured. Its purpose is to determine the amount of time an entry is held in the forwarding tables.
The default value is set to 300 seconds, (or 5 minutes).
The administrator may change this value to any value between 10 and 824 seconds. After changing the value, click apply Figure 3-11: Address Manager: Address Ageing
3.8 Spanning Tree
3.8.1 Bridge Settings
Spanning Tree can be enabled or disabled in this screen.
Enable: There are four other tunable parameters to be addressed.
Hello Time: Interval between configuration messages sent by the spanning tree algorithm
- Max Age: Amount of time before a configuration message is discarded by the system
- Forward Delay: Amount of time system spends in learning and listening states
- Bridge Priority: Priority setting among other switches in the spanning tree
Disable: Disable spanning tree algorithm on the system.
Figure 3-12: Spanning Tree: Bridge Settings
3.8.2 Port Settings
For the Port Settings options, you can specify spanning tree parameters for each port. These parameters include port priority and path cost.
Figure 3-13: Spanning Tree: Port Settings
3.9 VLAN Setup
The VLAN option allows users to define VLAN groups. The Add a new VLAN option will create a new VLAN. The VLAN tagging option is a standard set by the IEEE to facilitate the spanning of VLANs across multiple switches (Reference: Appendix A and IEEE Std 802.1Q-1998 Virtual Bridged Local Area Networks).
3.9.1 Membership
Add VLAN Group
- Enter the VLAN Id and name under the Add a new VLAN option.
- Click Apply
Remove VLAN Group
- Check the Remove VLAN box for the VLAN you want to remove
- Click Apply
Add VLAN Membership
- Click the box below the port number on the line of the VLAN so that a T (tagged) or U (untagged) appears.
Remove VLAN Membership
- Click the box again until a blank box appears. This will remove VLAN membership from the port.
Figure 3-14: VLAN Setup: Membership
3.9.2 Port VLAN ID
All untagged packets entering the switch will by default be tagged with the ID specified by the ports PVID. This screen allows you to specify the PVID for each port.
Figure 3-15: VLAN Setup: PVID Settings
3.10 Port Mirroring
Port mirroring is a feature to help in the debugging of a network. This web interface page allows enabling or disabling of port mirroring and the setting of source and monitor ports. The Monitor port will show a copy of every packet that arrives or leaves the source port.
Figure 3-16: Port Mirroring
3.11 SNMP Management
The SNMP menu contains the following sub-menus:
Community Table Host Table Trap Settings 3.11.1 Community Table
In the Community Table the administrator can create different community strings with customized access by choosing combinations of GET, SET and TRAP rights.
Figure 3-17: SNMP Management: Community Table
3.11.2 Host Table
The SNMP Host Table screen allows you to add and remove hosts from access rights that have been granted to community groups. The permissions GET, SET and TRAP are assigned to a community name and then these permissions are assigned to individual machines by adding those machines and their IP address to the appropriate community string. Host Authorization can be Enabled or Disabled.
Figure 3-18: SNMP Management: Host Table
3.11.3 Trap Setting
The SNMP Trap Setting allows for the setup of authentication traps.
Authentication traps
- Enable The system will generate a SNMP trap upon a host authorization failure
- Disable The authentication traps will not be generated
All hosts in community strings with TRAP privileges will be notified when a trap condition occurs.
Figure 3-19: SNMP Management: Trap Settings
The statistics page allows the administrator to chart different system data. There are three parameters to set: Statistic, Refresh Rate, and Color. All charts have a maximum ceiling of 231-1. You can see the value of each bar or line in the chart by clicking on the bar.
Statistics: The type of system data to be monitored Refresh Rate: The time interval between automatic refreshes Color: The color setting for the chart When all of the variables are set, click Draw.
Figure 3-20: Statistics
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