Specifications

9032294 E2 Application Views
5-21
LinkSwitch 1000 Application
LinkSwitch 1000 VLAN Config view
Fwding Action
Displays what action to take when the unit receives a packet with an
unknown destination address. A unit can forward the packet to the downlink
(if any) associated with the source port, or it can forward the packet to all its
ports.
Fwding Mode
Allows you to set whether cut-thru is enabled on the unit. Possible values are
Fast Forward, Fragment Free, Store & Forward, and Adaptive.
Enabling cut-thru can help minimize the delay experienced by packets before
they are forwarded to their destination. Setting cut-thru to FastForward
causes forwarding to begin as soon as 32 bytes of the frame have been
received. Setting it to FragmentFree causes forwarding to begin when 64
bytes have been received. This is slower but eliminates the risk of forwarding
an illegally short frame, however a valid length frame might still be forwarded
even though it had a CRC error. Setting this field to Store & Forward disables
cut-thru completely and frames will not be forwarded until they have been
received in their entirety.
Cut-thru cannot operate if the destination port is currently involved in cut-
thru from another port. In this case the device will process the frame in Store
& Forward mode.
LinkSwitch 1000 VLAN Config view
This view describes the configuration of any VLAN accessible from this device.
It contains the VLAN Table and the following button:
Allows you to add entries to the VLAN Table.
VLAN Table
Double-click an entry in this table to access the Configuration Port Entry view
in which you can change settings. This table contains the following fields:
Index
Displays the index number of a given VLAN.
Name
Displays the name of a given VLAN. This field can be changed only if the Row
Status is Not In Service
Unit ID
When a frame is received with an unknown destination address some devices
send it to all ports in the same VLAN as the originating port. Others send it to
Add Entry