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DES-3500 Series Layer 2 Stackable Fast Ethernet Managed Switch User Manual
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The following parameters can be set:
Parameter Description
Loopback Detection Global Settings
Loopback
Detection Status
Use the pull-down menu to enable or disable Loopback Detection globally on the Switch. The
default is Disabled.
Interval (1-32767)
Use the pull-down menu to set up the time interval (inseconds) at which the remote device
transmits all the CTP packets to detect the loop-back event. The default value is 10, with a
valid range of 1 to 32767,
Recover Time
(0 or 60 – 1000000)
The time interval (in seconds) used by the Auto-Recovery mechanism to decide how long to
check if the loop status is gone. The valid range is 60 to 1000000. Zero is a special value,
which means to disable the auto-recovery mechanism. The default value is 60.
Mode
Two modes are available: Port_based, VLAN_based. In port-based mode, the port will be
disabled during the loop detection. In vlan-based mode, the port cannot porcess VLAN
packets destined for ports involved in detecting the loop.
Loopback Detection Status Settings
From/To
A consecutive group of ports may be configured starting with the selected port.
State
Use the pull-down menu to enable or disable Loopback Detection on consecutive group of
ports of the Switch. The default is Disabled.
Click Apply to implement changes made.
Forwarding Filtering
Unicast Forwarding
Open the Forwarding Filtering folder in the Configuration menu and click on the Unicast Forwarding link. This will open the
Setup Static Unicast Forwarding Table, as shown below:
Figure 6- 36. Setup Static Unicast Forwarding Table window
To add or edit an entry, define the following parameters and then click Add/Modify:
Parameter Description
VLAN ID (VID)
The VLAN ID number of the VLAN on which the above Unicast MAC address resides.
MAC Address
The MAC address to which packets will be statically forwarded. This must be a unicast
MAC address.
Allowed to Go Port
Allows the selection of the port number on which the MAC address entered above resides.
Click Apply to implement the changes made. To delete an entry in the Static Unicast Forwarding Table, click the corresponding X
under the Delete heading.
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