Gigabit Ethernet Switch User’s Guide
81
Bridge
This is the second category of the Web-based management program. The
Bridge
options include
Configure
Spanning Tree Protocol
(
Switch STP
and
Port STP
),
Configure Filtering and Forwarding Table
(
Address Setup, Custom FDB
,
Filter Table
,
and
Multicast FDB
), and
Configure IGMP Filtering
(
IGMP Setup
and, depending on the VLAN/MAC-based broadcast domain setting,
IGMP 802.1Q VLAN
Setup
or
IGMP Port Based VLAN Setup
). See below for explanations of each one.
Configure Spanning Tree Protocol
Switch STP
Figure 7-12. Switch Spanning Tree Configurations window
The Switch supports the 801.2d Spanning Tree Protocol, which allows you to create alternative paths (with
multiple switches or other types of bridges) in your network. See the Spanning Tree Algorithm section of the
“Switch Management Concepts”
chapter for a detailed explanation.
To configure Spanning Tree Protocol functions for the Switch or individual ports, enter the desired
information in the fields on this screen (see the descriptions below for assistance) and then click
Apply
.
The information on the screen is described as follows:
♦
Spanning Tree Protocol
Select
Enabled
to implement the Spanning Tree Protocol.
♦
Time Since Topology Changes(sec)
Read-only object displays the last time changes were made to
the network topology. These changes usually occur when backup paths are activated due to primary
path failures.
♦
Topology Change Count
Read-only object displays the number of times (since the current
management session with the device was started) changes were made to the network topology.
Changes usually occur on the network when backup paths are activated.
♦
Designated Root
Read-only object displays the MAC (Ethernet) address of the bridge/switch on the
network that has been chosen as the STP root.
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