Netgear M4300-8X8F (XSM4316S) - Stackable Managed Switch with 16x10G including 8x10GBASE-T and 8xSFP+ Layer 3 User Manual
Configure Switching Information
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M4200 and M4300 Series ProSAFE Managed Switches Web Management User Manual
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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.
range is 6–40. The default is 20 hops.
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Spanning Tree Tx Hold Count
. Configures the maximum number of bpdus the bridge
is allowed to send within the hello time window. The valid range is 1–10. The default
value is 6.
value is 6.
7.
Click the Apply button.
The updated configuration is sent to the switch. Configuration changes take effect
immediately.
immediately.
The following table describes the CST Status information that is displayed.
Configure CST Port Settings
You can configure the Common Spanning Tree (CST) and Internal Spanning Tree on a
specific port on the switch.
specific port on the switch.
A port can become Diagnostically Disabled (D-Disable) when DOT1S experiences a severe
error condition. The most common cause is when the DOT1S software experiences BPDU
flooding. The flooding criteria is such that DOT1S receives more than 15 BPDUs in a
3-second interval. The other causes for DOT1S D-Disable are extremely rare.
flooding. The flooding criteria is such that DOT1S receives more than 15 BPDUs in a
3-second interval. The other causes for DOT1S D-Disable are extremely rare.
Table 76. STP Advanced CST Configuration
Field
Description
Bridge identifier
The bridge identifier for the CST. It is made up using the bridge priority
and the base MAC address of the bridge.
and the base MAC address of the bridge.
Time since topology change
The time in seconds since the topology of the CST last changed.
Topology change count
Number of times topology changed for the CST.
Topology change
The value of the topology change parameter for the switch indicating if
a topology change is in progress on any port assigned to the CST. It
takes a value if True or False.
a topology change is in progress on any port assigned to the CST. It
takes a value if True or False.
Designated root
The bridge identifier of the root bridge. It is made up from the bridge
priority and the base MAC address of the bridge.
priority and the base MAC address of the bridge.
Root Path Cost
Path Cost to the Designated Root for the CST.
Root Port Identifier
Port to access the Designated Root for the CST.
Max Age(secs)
Path Cost to the Designated Root for the CST.
Forward Delay(secs)
Derived value of the Root Port Bridge Forward Delay parameter.
Hold Time(secs)
Minimum time between transmission of Configuration BPDUs.
CST Regional Root
Priority and base MAC address of the CST Regional Root.
CST Path Cost
Path Cost to the CST tree Regional Root.