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Page 41 / 104 Scroll up to view Page 36 - 40
33
Chapter 5: Configuring the Switch through the Web Utility
Switch Config
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Switch Config
The Switch Config tab includes links to the following screens.
•
Port Configuration
•
VLAN
•
VLAN Port
•
LAG Configuration
•
Port Mirroring
•
LACP
Port Configuration
You can manually configure the speed, duplex mode, and flow control used on specific ports, or use auto-
negotiation to detect the connection settings used by the attached device. Use the full-duplex mode on ports
whenever possible to double the throughput of switch connections. Flow control should also be enabled to
control network traffic during periods of congestion and prevent the loss of packets when port buffer thresholds
are exceeded. The switch supports flow control based on the IEEE 802.3x standard.
This screen displays the current connection status, including link state, speed/duplex mode, flow control, and
auto-negotiation.
The Port Configuration screen displays the following information for each port on the switch.
Name
. Enter a name for the port, up to 64 characters long.
Port Type
. Indicates the port type. (100BASE-TX, 1000BASE-T, or SFP)
Admin Status
. Shows if the interface is enabled or disabled.
Operating Status
. Indicates if the link is Up or Down.
Speed Duplex
. Shows the current speed and duplex mode. (Auto, or a fixed choice)
Figure 5-13: Switch Config - Port Configuration
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34
Chapter 5: Configuring the Switch through the Web Utility
Switch Config
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Flow Control
. Indicates the type of flow control currently in use. (IEEE 802.3x, Back-Pressure or None)
Auto Negotiation
. Shows if auto-negotiation is enabled or disabled.
LAG Member
. Shows if port is a LAG member.
Click
Port Configuration
to edit the port settings.
Click
Port Broadcast Control
to edit the port broadcast threshold.
Edit Port Configuration
You can use Port Configuration to enable/disable an interface, set auto-negotiation and the interface capabilities
to advertise, or manually force the speed, duplex mode, and flow control.
This screen allows you to edit the following information for each port on the switch.
Name
. Allows you to label an interface. (Range: 1-64 characters)
Admin
. Allows you to manually disable an interface. You can disable an interface due to abnormal behavior (e.g.,
excessive collisions), and then enable it again, once the problem has been resolved. You may also disable an
interface for security reasons.
Speed Duplex
. Allows you to manually set the port speed and duplex mode. (i.e., with auto-negotiation disabled)
Flow Control
. Allows automatic or manual selection of flow control.
Auto-negotiation (Port Capabilities)
. Allows auto-negotiation to be enabled/disabled. When auto-negotiation is
enabled, you need to specify the capabilities to be advertised. When auto-negotiation is disabled, you can force
the settings for speed, mode, and flow control.The following capabilities are supported.
•
10half - Supports 10 Mbps half-duplex operation
•
10full - Supports 10 Mbps full-duplex operation
•
100half - Supports 100 Mbps half-duplex operation
Figure 5-14: Edit Port Configuration Screen
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35
Chapter 5: Configuring the Switch through the Web Utility
Switch Config
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
•
100full - Supports 100 Mbps full-duplex operation
•
1000full - Supports 1000 Mbps full-duplex operation
•
Sym (Gigabit only) - Check this item to transmit and receive pause frames, or clear it to auto-negotiate the
sender and receiver for asymmetric pause frames. (The current switch chip only supports symmetric
pause frames.)
•
FC - Supports flow control
Flow control can eliminate frame loss by “blocking” traffic from end stations or segments connected
directly to the switch when its buffers fill. When enabled, back pressure is used for half-duplex operation
and IEEE 802.3x for full-duplex operation. (Avoid using flow control on a port connected to a hub unless it
is actually required to solve a problem. Otherwise back pressure jamming signals may degrade overall
performance for the segment attached to the hub.)
(Default: Autonegotiation enabled; Advertised capabilities for 100BASE-TX – 10half, 10full, 100half,
100full; 1000BASE-T – 10half, 10full, 100half, 100full, 1000full; 1000BASE-SX/LX/LH – 1000full)
LAG
. Indicates if a port is a member of a LAG.
Modify the required interface settings, and click
submit
.
Page 44 / 104
36
Chapter 5: Configuring the Switch through the Web Utility
Switch Config
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
VLAN
A VLAN is a group of ports that can be located anywhere in the network, but communicate as though they belong
to the same physical segment.
VLANs help to simplify network management by allowing you to move devices to a new VLAN without having to
change any physical connections. VLANs can be easily organized to reflect departmental groups (such as
Marketing or R&D), usage groups (such as e-mail), or multicast groups (used for multimedia applications such as
videoconferencing).
The VLAN screen displays the following information for each VLAN and each port.
Selected VLAN
. Lists all the current VLAN groups created for this system. Up to 128 VLAN groups can be defined.
VLAN 1 is the default untagged VLAN.
Up Time at Creation
. This displays the amount of time since this VLAN was created (that is, System Up Time).
Status
. Shows if this VLAN is enabled or disabled.
VLAN ID
. ID of configured VLAN (1-4094, no leading zeroes).
VLAN Name
. Name of the VLAN (1 to 32 characters).
VLAN type
. Shows how this VLAN was added to the switch.
•
Default: The Switch’s default VLAN.
•
Static: Added as a static entry.
Member Information
. Shows the VLAN interface members.
Tagging Information
. Shows the tagging information for each port.
To display a particular VLAN, select the
Select VLAN ID
radio button and choose the VLAN ID from the drop-down
menu.
To display all VLANs, click the
Show All
radio button.
To create a new VLAN, click
Create VLAN
.
To configure a VLAN, click VLAN Configuration.
Figure 5-15: Switch Config - VLAN
Page 45 / 104
37
Chapter 5: Configuring the Switch through the Web Utility
Switch Config
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Create VLAN
To create a VLAN, enter the VLAN ID and VLAN name, up to 32 characters long. Mark the
Enable
checkbox to
activate the VLAN, and click
Create VLAN
.
To edit a VLAN, select a VLAN ID and click the Edit icon (which resembles a pen). Modify the VLAN name and
status if required. Select the membership type by marking the appropriate radio button in the list of ports or lags.
Click
Submit
.
Membership Type
. Select VLAN membership for each interface by marking the appropriate radio button for a
port or LAG:
•
Tagged. Interface is a member of the VLAN. All packets transmitted by the port will be tagged, that is,
carry a tag and therefore carry VLAN or CoS information.
•
Untagged. Interface is a member of the VLAN. All packets transmitted by the port will be untagged, that is,
not carry a tag and therefore not carry VLAN or CoS information. Note that an interface must be assigned
to at least one group as an untagged port.
•
None. Interface is not a member of the VLAN. Packets associated with this VLAN will not be transmitted by
the interface.
Figure 5-16: Adding/Editing VLAN Screen

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