User manual

xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch
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The fields that can be configured are described below:
Parameter Description
Serial Port Auto
Logout Time
Select the logout time used for the console interface. This automatically logs the user
out after an idle period of time, as defined. Choose from the following options: 2
Minutes, 5 Minutes, 10 Minutes, 15 Minutes or Never. The default setting is 10
minutes.
Serial Baud Rate
This field specifies the baud rate for the serial port on the Switch. This fields menu is
set at 115200 and cannot be changed.
MAC Address Aging
Time
This field specifies the length of time a learned MAC Address will remain in the
forwarding table without being accessed (that is, how long a learned MAC Address is
allowed to remain idle). To change this, type in a different value representing the MAC
address age-out time in seconds. The MAC Address Aging Time can be set to any
value between 10 and 1,000,000 seconds. The default setting is 300 seconds.
IGMP Snooping
To enable system-wide IGMP Snooping capability select Enabled. IGMP snooping is
Disabled by default. Enabling IGMP snooping allows you to specify use of a multicast
router only (see below). To configure IGMP Snooping for individual VLANs, use the
IGMP Snooping window under the IGMP folder.
Multicast Router
Only
This field specifies that the Switch should only forward all multicast traffic to a
multicast-enabled router, if enabled. Otherwise, the Switch will forward all multicast
traffic to any IP router. The default is Disabled.
GVRP Status
Use this pull-down menu to enable or disable GVRP on the Switch.
Telnet Status
Telnet configuration is Enabled by default. If you do not want to allow configuration of
the system through Telnet choose Disabled.
Telnet TCP Port
Number (1-65535)
The TCP port number. TCP ports are numbered between 1 and 65535. The "well-
known" TCP port for the Telnet protocol is 23.
Web Status
Web-based management is Enabled by default. If you choose to disable this by select-
ing Disabled, you will lose the ability to configure the system through the web interface
as soon as these settings are applied.
RMON Status
Remote monitoring (RMON) of the Switch is Enabled or Disabled here.
SNMP Status
Simple Network Monitoring Protocol (SNMP) of the Switch is Enabled or Disabled
here. The Default is Disabled.
Link Aggregation
Algorithm
The algorithm that the Switch uses to balance the load across the ports that make up
the port trunk group is defined by this definition. Choose MAC Source, MAC
Destination, MAC Src & Dest, IP Source, IP Destination or IP Src & Dest (See the Link
Aggregation section of this manual).
802.1x Status
MAC Address may enable by port or the Switch’s 802.1x function; the default is
Disabled. This field must be enabled to view and configure certain windows for 802.1x.
More information regarding 802.1x, its functions and implementation can be found
later in this section, under the Port Access Entity folder.
Port-Based 802.1x specifies that ports configured for 802.1x are initialized based on
the port number only and are subject to any authorization parameters configured.
MAC-based Authorization specifies that ports configured for 802.1x are initialized
based on the port number and the MAC address of the computer being authorized and
are then subject to any authorization parameters configured.
802.1x
Authentication
Protocol
The user may use the pull-down menu to choose between radius eap and radius pap
for the 802.1x authentication protocol on the Switch. The default setting is radius eap.
HOL Prevention
If this option is enabled it prevents the forwarding of data to a port that is blocked.
Traffic that would normally be sent to the buffer memory of the Switch’s TX queue is
dropped so that memory usage is conserved and performance across all ports
remains high.