TRENDnet TL2-FG142, Руководство пользователя

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TRENDnet User’s Guide
TL2-FG142
47
Items Description
Port The switch port number of the port.
Enable Controls whether loop protection is enabled on this switch port.
Action Configures the action performed when a loop is detected on a port. Valid
values are Shutdown Port, Shutdown Port and Log or Log Only
Tx Mode Controls whether the port is actively generating loop protection PDU's,
or whether it is just passively looking for looped PDU's.
Button
Click to save changes.
Click to undo any changes made locally and revert to previously saved values.
4.3.15 Spanning Tree
The Spanning Tree Protocol (STP) is a network protocol that ensures a loop-free
topology for Ethernet networks. The basic function of STP is to prevent bridge loops and
the broadcast radiation that results from them. Spanning tree also allows a network
design to include spare (redundant) links to provide automatic backup paths if an active
link fails, without the danger of bridge loops, or the need for manual enabling or
disabling of these backup links.
4.3.15.1 Bridge Setting
This page allows you to configure STP system settings. The settings are used by all STP
Bridge instances in the Switch.
Basic Settings
Items Description
Protocol
Version The MSTP / RSTP / STP protocol version setting. Valid values are STP,
RSTP and MSTP.
Bridge
Priority Controls the bridge priority. Lower numeric values have better priority.
The bridge priority plus the MSTI instance number, concatenated with
the 6-byte MAC address of the switch forms a Bridge Identifier.
For MSTP operation, this is the priority of the CIST. Otherwise, this is the
priority of the STP/RSTP bridge.
Forward
Delay The delay used by STP Bridges to transit Root and Designated Ports to
Forwarding (used in STP compatible mode). Valid values are in the range
4 to 30 seconds.
Max Age The maximum age of the information transmitted by the Bridge when it
is the Root Bridge. Valid values are in the range 6 to 40 seconds, and
Max
Age must be <= (FwdDelay-1)*2.
Maximum
Hop Count This defines the initial value of remaining Hops for MSTI information
generated at the boundary of an MSTI region. It defines how many