User Manual

Configure Switching
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Insight Managed 8-Port Gigabit Ethernet Smart Cloud Switch with 2 SFP Fiber Ports
implementing a topological change. The valid range is 6–40, and the value must be
less than or equal to (2 * Bridge Forward Delay) – 1 and greater than or equal to 2 *
(Bridge Hello Time +1). The default value is 20.
• Bridge Hello Time (secs). The bridge hello time for the Common and Internal
Spanning Tree (CST), which indicates the time in seconds a root bridge must wait
between configuration messages. The value is fixed at 2 seconds. The value must be
less than or equal to (Bridge Max Age / 2) – 1. The default hello time value is 2.
• Bridge Forward Delay (secs). The bridge forward delay time, which indicates the
time in seconds a bridge must remains in a listening and learning state before
forwarding packets. The value must be greater or equal to (Bridge Max Age / 2) + 1.
The time range is from 4 seconds to 30 seconds. The default value is 15 seconds.
• Spanning Tree Maximum Hops. The maximum number of bridge hops the
information for a particular CST instance can travel before being discarded. The valid
range is 6–40. The default is 20 hops.
7. Click the Apply button.
Your settings are saved.
The following table describes the MSTP Status information that is displayed.
Configure CST Port Settings
You can configure a common spanning tree (CST) and internal spanning tree on a specific
port on the switch.
A port can become diagnostically disabled if as error condition occurs such as severe BPDU
flooding with more than 15 BPDUs in a 3-second interval.
 To configure CST port settings:
1. Connect your computer to the same network as the switch.
You can use a WiFi or wired connection to connect your computer to the network, or
connect directly to a switch that is off-network using an Ethernet cable.
2. Launch a web browser.
3. In the address field of your web browser, enter the IP address of the switch.
If you do not know the IP address of the switch, see Access the Switch on page 13.
Table 32. STP advanced CST configuration, MSTP status
Field Description
MST ID Table consisting of the MST instances (including the CST) and the
corresponding VLAN IDs associated with each of them.
VID ID Table consisting of the VLAN IDs and the corresponding FID
associated with each of them.
FID ID Table consisting of the FIDs and the corresponding VLAN IDs
associated with each of them.