Chapter 6

Working with Web-based Interface


The Home Page of the FS3-1600 Switch

Users can use any Java-enable (support Java 1.1.x) browsers, such as Netscape Communicator 4.05 (or later) or Microsoft Internet Explorer 4.0 (or later), to manage the FS3-1600 switch via the Web-based Interface. User just input the IP address of the FS3-1600 switch, then browser will connect to FS3-1600 and show the FS3-1600’s Login screen (the Login screen is the home page of the FS3-1600 switch). The more detail about setting Java Security for getting advance network management functions, please see Appendix D. The GUI (Graphic User Interface) of Login screen is shown in Figure 6 - 1

Figure 6-1: The Login Screen GUI

The Login Screen need an user to input the community name information:


Main Screen of WebMan

The Figure 6-2 is the Main Screen of the WebMan.

The Main Screen contains five major function modules, they are Device Manager, SNMP, RMON, CONFIG, and LOGOUT modules.

Figure 6-2: The Main Screen GUI

The brief descriptions of these modules are described as follows:


Device Manager

Click the Switch button (see the right-side button), then the Web browser will show the Device Manager screen, see the Figure 6-3.

 

Figure 6-3: The Device Manager GUI

The Device Manager contains two parts as follows:

These LED indications include speed mode, duplex/collision, and network activity.

Click Detail button to get more management functions for this device. Such as LAN port, VLAN, and Spanning tree configurations.


LED Indicators

In Figure 6-3, the following screen represents the port number,

There are 16 ports in FS3-1600 switch, the port number are from port1 to port 16.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

 

Represents 100Mbps Speed (Green: On)
Represents 10Mbps Speed (Green: On)
Represents Full Duplex Mode (Green: On)
Represents Network Activity (Green: On)

FDX/COL represents Full Duplex Indicator or Collision Indicator. FDX/COL shares the same LED, different LED appearance represents different meaning. See the following table.

LED

Green LED

Description

FDX/COL

Steady

In Full-Duplex Mode

Off

In Half-Duplex Mode.
Without Any Collisions.

Blinking

In Half-Duplex Mode.
With Some Collisions.

LED

LED Color

Description

DIAG.

Green

Self Test OK, Green On.

FAN1

Orange

FAN1 Failure, Orange On.

FAN2

Orange

FAN2 Failure, Orange On.

FAN3

Orange

FAN3 Failure, Orange On.

 


Device Detail

Click the Detail button (see the right-side button), then the Web browser will show the Device Detail screen, see Figure 6-4. The Device Detail functions include three function groups, they are LAN Port, VLAN, and Spanning Tree function groups, respectively. The default function group is the LAN Port function group.

Use a mouse to click what function group you want to select, the characters of the selected function group are highlighted with bold font. For example, the LAN Port is the selected function group in the following screen.

Figure 6-4 : The Device Detail Screen


Device Exit

Click the Exit button (see the right-side button) will close Device Manager screen and Device Detail screen (if Device Manager screen is opened).


LAN Port

 

Line Speed

The LAN Port screen is the same with Figure 6-4. From port 1 to port 8 are described in Figure 6-4, if you want to configure a port that is located at the range of port 9 and port 16.

Please click the Right Arrow button in Figure 6-4 (see the left-side screen). It is sure to use the Left Arrow button to go back the screen that can configure the port from port 1 to port 8.

The LAN Port function group is built-in four parts configuration modes for each port. They are:

  • Line Speed
  • Congestion Control
  • Switching Mode
  • Link Type

There are five Line Speed modes described in Table 6-1, the default mode is Auto Negotiate mode.

Table 6-1 : Line Speed Modes

Line Speed

Description

Auto Negotiate In auto-negotiation or auto-sense mode.
10Mbps Half Duplex Force in 10Mbps half-duplex mode without auto-negotiation capability.
10Mbps Full Duplex Force in 10Mbps full-duplex mode without auto-negotiation capability.
100Mbps Half Duplex Force in 100Mbps half-duplex mode without auto-negotiation capability.
100Mbps Full Duplex Force in 100Mbps full-duplex mode without auto-negotiation capability.

 


Congestion Control

There are two Congestion Control modes described in Table 6-2, the default mode is Disable mode. FS3-1600’s Congestion Control can support both full-duplex and half-duplex modes. In full-duplex mode, FS3-1600 implements IEEE 802.3x as the congestion control method. In half-duplex mode, FS3-1600 implements back-pressure as the congestion control method.

Table 6-2 : Congestion Control Modes

Congestion Control

Description

Disable

Disable congestion control function.

Enable

Enable congestion control function.

There are many existing Ethernet switches, they are not implemented the IEEE 802.3x full-duplex flow control method. Don’t enable the congestion control function while connecting these Ethernet switches that are not implemented the IEEE 802.3x method.

 


Switching Modes

There are three Switching Modes described in Table 6-3, the default mode is Store-and-Forward mode.

Table 6-3 : Switching Modes

Switching Modes

Description

Store-and-Forward Eliminates runt packets, but imposes longer forwarding latency.
Cut-through Provides minimized runt packets with limited forwarding latency.

Link Type

There are two modes of Link Type described in Table 6-4, the default mode is Access Port mode.

Table 6-4 : Link Type Modes

Link Type Modes

Description

Access Port

Access ports typically connect the FS3-1600 switch to network nodes other than switches. Access ports can also connect the FS3-1600 switch to other switches that do not support 802.1Q tagging. Packets sent from an access port are always VLAN untagged, unless overridden by the specific setting for a specific VLAN.

Trunk Port

Trunk ports typically interconnect two switches. Packets sent from a trunk port are always VLAN tagged, unless overridden by a setting for a specific VLAN. A trunk port cannot be used to connect the FS3-1600 switch to another switch that does not support 802.1Q tagging.

VLAN

Click the VLAN function group in the Device Detail screen, then you can see the VLAN screen (Figure 6 – 5). The VLAN function group provides VLAN management functions as follows:

Figure 6-5 : The VLAN Screen

The are two major areas in Figure 6-5. They are

  • Created VLAN Area: In the left side of Figure 6-5.
  • VLAN Members Area: In the right side of Figure 6-5.

Create a New VLAN

It is very simple to create a Level 1 (port-based). For example, if you want to create a Level 1 VLAN, please click “Add Port-Based VLAN” button in Figure 6-5 (see the above screen). After you clicked the “Add Port-Based VLAN” button, a new “VLAN” group is created in “Level 1 VLAN Group” immediately, see Figure 6-6.

Figure 6-6 : Create a New Level 1 VLAN


Change VLAN Property

If you want to change the properties of the created VLAN group, please select the new created VLAN with mouse in the Created VLAN area of Figure 6-6 in advance. Then click “Property” button in Figure 6-6, after that you can see the dialogue in next page (Figure 6-7).

Figure 6-7: VLAN Property Dialogue

In Figure 6-7, you can edit your desired VLAN name in VLAN Name field. It is optional that inputs a set of IP network information for this new created VLAN, the set of IP network information contains the following fields:

  1. IP Address.
  2. Subnet Mask.
  3. Gateway.

Select VLAN Members

To select VLAN members is an important thing after creating a VLAN. The selection procedure is described as follows:

  1. Highlight the selected VLAN in the Created VLAN area of Figure 6-5.
  2. Click the equal VLAN Level that is same with the above selected LAN in the VLAN Members area of Figure 6-5.
  3. Highlight the VLAN members in VLAN Member area to join the selected VLAN
  4. Click the move button in Figure 6 – 5 to join selected members into selected VLAN
  5. If any member cannot join to selected VLAN, a message dialogue would popup to inform user.

 


View Member Properties

If you want to get the properties of any VLAN member, please select the VLAN member with mouse in the Created VLAN area of Figure 6 – 5 in advance. Then click “Property” button in Figure 6-5, after that you can see the dialogue to show member properties. (Figure 6-8).

Figure 6-8: Member Property Dialogue

The Member property dialogue only shows the properties information of selected VLAN member, each property in this dialogue cannot be changed.


Remove VLAN Remove VLAN Members

 

If you want to remove the VLAN or VLAN member in the Created VLAN area in Figure 6-5, firstly select the VLAN or VLAN member which you want to remove. Then click the remove button in the Figure 6-5. If there is any error happened during removing VLAN or VLAN member, a message dialogue would popup to inform user.


Update VLAN Information

If you want to update all of the VLAN information immediately, please press button in bottom of the Figure 6 – 6.


Spanning Tree

Click the Spanning Tree function group in the Device Detail screen, then you can see the Spanning Tree screen (Figure 6-9). The Spanning function group provides Spanning Tree management functions.

Figure 6-9: Spanning Tree Screen


Each Port Configuration

In the left part of this panel, you can change each port’s configurations. You can change each port’s Path Cost and Port Priority individually on the relative text field. You may press

to switch to next 8 ports. You can change all port to uniform value at one time using “Change All” text field and click Apply All button when finished. Each port’s state will be show on the Port States column.


Bridge Properties Configuration

All bridge properties one can change in console can be changed in the right part of the Spanning Tree screen (see Figure 6-9). The dark part shows bridge properties that can’t be changed by administrators. All settings will be set to switch after the right-bottom Apply button being pressed.


RMON

Click the RMON button (see the right-side button), then the Web browser will show the RMON (Remote network monitoring) screen, see the Figure 6-10.

Figure 6-10: The RMON GUI

There are four function groups in RMON screen :

  1. Event
  2. Statistics
  3. Alarm
  4. History

Event

Click the Event button (see the right-side button), then the Web browser will show the RMON Event screen, see Figure 6-11, Figure 6-12

Figure 6-11: The Event and Log screen

Figure 6-12: The Trap screen


Event and Log

Figure 6-11 shows two tables. The event table shows all events that set in the Alarm screen in RMON. One can choose one or more events and click the “view log” button to see associated logs to the selected events and all logs will be shown in log table in the bottom of the screen.


Traps

Figure 6-12 shows the trap table. The trap table displays the traps delivered from the switch and users can also print out traps or save to files (please use A4 landscape printing format). The trap function won’t be available on every platform due to the security restrictions of the browsers. It is available now only on IE4.0 and turn on the unsigned applet to full permissions.


Statistics

Click the Statistic button (see the right-side button), then the Web browser will show the RMON Statistic screen, see Figure 6-13

Figure 6-13: The Statistic screen


Determine Interface

Once you click the Statistic button, the Interface Dialog will show up, see Figure 6-14

Figure 6-14: The Interface Dialog

You may choose an interface(port) you want to see the statistics datas in the “Interface” field. The “Polling Rate” field tells system the delay time (in seconds) to get next datas and refreshes the screen. And the in the “Background” field one can decide whether the statistic screen will be execute when goes to background or suspended itself. Choose suspended will save more system resources when system is overloaded.


Packet Type Distribution

In the left-top is the Packet Type Distribution window. It shows the amount of different types of packets pass through the switch.


Packet Size Distribution

In the right-top is the Packet Size Distribution window. It shows the amount of different sizes of packets pass through the switch.


Switch Utilization

In the left-bottom is the Switch Utilization window. It shows the utilization of this switch. And the utilization is obtain from the formula below (see RFC1757).

Utilization = Pkts * (9.6 + 6.4) + (Octets * 0.8)

Interval * 10,000


Packet Flow Trend

where Interval = number of seconds, and the value is ranged from 0 to 100 percent.

In the right-bottom is the Packet Flow Trend window. It shows both the number of packets passed through the switch (Red line, scale on the left) and the number of collisions (Gray line, scale on the right)


Alarm

Click the Alarm button (see the right-side button), then the Web browser will show the RMON Alarm screen, see Figure 6-15.

Figure 6-15: The Alarm screen

First the alarm table will show up. The table will display the existed alarms set before. You can add, modify, and delete alarms on it. When you press the Add or Modify button, the Alarm screen will extend to Figure 6-16.

Figure 6-16: The extended Alarm screen

One can now set the values on the extended Alarm screen. The detail fields will be described below:

  • Index: It is the unique alarm index and will be yielded automatically.
  • Interval: This field you can set the interval of the alarm.

The interval in seconds over which the data is sampled and compared with the rising and falling thresholds. When setting this variable, care should be taken in the case of deltaValue sampling-the interval should be set short enough that the sampled variable is very unlikely to increase or decrease by more than 2^31-1 during a single sampling interval.

  • Sampling Type: The sampling type is either of absolute or delta type. This is used to sample the selected variable and calculating the value to be compared against the thresholds
  • Managed OID: The MIB object identifier of the particular variable to be sampled. There are already some default MIB objects you can add to alarm, if you still want more objects to be managed, click the “Show MIB Tree” button, See below.
  • Threshold: A threshold for the sampled statistic. When the current sampled value is greater than or equal to this threshold, and the value at the last sampling interval was less than this threshold, a single event will be generated.
  • Event Activation: Click to enable/disable rising/falling event.
  • Event Action: The type of notification that the probe will make about this event. In the case of log, an entry is made in the log table for each event. In the case of SNMP trap, an SNMP trap is sent to one or more management stations."

Manage More MIB Objects

One may press the “Show MIB Tree” button in the right-bottom corner to manage all MIB objects in the MIB tree. See Figure 6-17

Figure 6-17: The extended Alarm screen

In the left of the MIB Tree panel shows the entire MIB Tree. One can double click on a node of the MIB Tree and all instances of this node and nodes on it’s sub-tree will be displayed on the right instance table (double click again will stop). Then one can simply double click on the instance he wants to manage and this instance will be added to the Managed OID.


History

Click the History button (see the right-side button), then the Web browser will show the RMON History screen, see Figure 6-18.

RMON history group enables a network engineer to take periodic statistical samples from a segment and store them within the probe for later retrieval and analysis. There are three function pages in History screen:

  1. History Configure: This page (see Figure 6-18) is default page of History screen, this page shows history control table and provides GUI to create history control entry.
  2. History View: This page shows ether history table, which selected from History Configure page.
  3. History Graph: This page shows ether history table, which selected from History Configure page in line chart.

Figure 6 - 18: History Configure Page


History Configure

This page is the default page of History screen (see Figure 6-18), this page shows the history control table and provide GUI to help user to create history control entry. (each row in history control table is called a history control entry) Each history control entry determine a ether history table that are shown in the History View page. There are seven fields in each history control entry, the meaning of each field is described as follows.

  1. Index: Index is an integer that uniquely identifies the history control entry.
  2. Data Source: Data Source tells the source interface on the probe for data in this set of samples, the value of data source is like “ifIndex.1”
  3. Requested: Requested is the number of buckets the network management system wants to store for the history control entry.
  4. Granted: Granted is the number of buckets granted for this set of samples, because the probe may not have enough resource, such as disk space and memory, to fulfill a request.
  5. Interval: Interval defines the time interval in seconds that the probe should sample the network segment. The sample period can be as short as a second or as long as an hour.
  6. Owner: Owner means which network management configured this history control entry.
  7. Status: Status field tells a management system whether this history control entry is valid.

The history control entry cannot be modified directly, if you want to modify one history control entry, please delete the row you want to modify, then add a new one. The procedure to add and delete a history control entry is described in the next page.


Add History Control Entry

To add a history control entry just click the add button   in History Configure page (see Figure 6-18). After click the add button, the web browser would show History Control Dialogue to configure a history control entry, see Figure 6-19.

Figure 6-19: History Control Dialogue

You can choose an interface from the “Interface” drop-list, to fill the Data Source field of history control entry. Sample interval is the time between each sampling. The sample interval value can be used as the value of Interval field of history control entry. Sample length is the total time length the history control entry to get statistic sample. The relationship of requested value, sample interval, and sample length is as follows:

requested value = (sample length) / (sample interval)

After input each value in History Control Dialogue and press OK button, then a new history control entry is created.


Remove History Control Entry

To remove a history control entry, you would select a row in history control table by mouse, then click the delete button in Figure 6-18 to delete the history control entry.

 


History View

History View page shows the ether history table which is corresponding to the history control entry selected in the History Configure page. Before select this page, make sure any row in history control table is selected. The outlook of History View page is shown in Figure 6-20.

Figure 6-20: History View Page

In this page you can press halt button to suspend and resume the automatic polling function, you can update the polling time by changing the value of automatic polling rate, and you can press exit button to exit RMON History screen.


History Graph

History Graph page shows the ether history table in line chart, which the ether history table is corresponding to the history control entry selected in the History Configure page. Before select this page, make sure any row in history control table is selected. The outlook of History View page is shown in Figure 6-21.

Figure 6-21: History Graph Page

In this page, you can make history graph to show only the information you concerned by selecting or deselecting history view item (see above).


SNMP

Click the SNMP button (see the right-side button), then the Web browser will show the MIB browser screen, see the Figure 6-22.

The MIB browser is a powerful tool, by which you can easily retrieve any managed object information as you want.

Figure 6-22: MIB Browser Screen

MIB browser contains three display components:

  1. Tree View Area: Tree View area (the green area) shows the current MIB module in tree structure.
  2. List View Area: List View area (the yellow area) lists the child nodes of the selected node, which is selected in tree view area. In addition, if the selected node is a leaf node, then list view will show the associated information in detail.
  3. Output Area: Output area (the red area) shows the result of get MIB function.

Change MIB Module

With MIB browser, you can change MIB module by selecting the MIB module drop list (see left-side drop list) in the toolbar. FS3-1600 currently provide “RFC 1213-MIB”, “RMON-MIB”, “BRIDGE-MIB” tree MIB modules.


get MIB action

To perform get MIB action, you should select a node in tree view area in advance, then you can click the get MIB button to perform the get MIB action. The result of get MIB action would be displayed in the output area. If you select a leaf node in tree view area, the output area only shows the value of object instance of selected node. If you select a node with child, the output area shows all the values of child nodes of selected node.

You can click the stop button to stop the get MIB action, and click the clear button to clear the output area.

set MIB action

To perform set MIB action, you should firstly select a leaf node in tree view area or select a object instance in output area. Then you can click the set MIB button to perform set MIB action. After the set MIB button is pressed, MIB browser shows the set MIB dialogue, see Figure 6 - 23.

Figure 6-23: Set MIB Dialogue

Input the value, data type, and object ID, and press “Set MIB” button, the entered value would set into the object ID specified in OID field.


CONFIG

Click the Configure button (see the right-side button), then the Web browser will show the Configure screen, see the Figure 6-24.

Figure 6-24 : Configure Screen

There are 2 major panel in the TFTP tab. The above one shows the version information including hardware, firmware, software and web manager versions. The below one is TFTP Control panel that allow web manager users to upgrade new software.


TFTP Control

Users can upgrade new versions of both software and web-base manager using the TFTP function. This function will be available only on browsers that allow unsigned applet to full permissions since it has to open local files.


Trap Tab

The Trap tab is same as in the Event screen.


LOGOUT

Click the Logout button (see the right-side button), will quit the main screen (see Figure 6-2).

After click the logout button, main screen would show a Save Configuration dialogue to ask user if want to save the configuration or not. The save configuration dialogue is shown in Figure 6-25. If you select “Yes” button, the system will save the change you made during the login session, and quit to the login screen (see Figure 6-1). If you select No button the system will not save change and quit to the login screen (see Figure 6-1).

Figure 6-25 : Save Configuration Dialogue

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