Spanning Tree > Stp Port Settings - Linksys SRW224G4P User Manual

Chapter 
Spannng Tree Type Specifies the type of spanning tree
used on the Switch:
• STP Spanning Tree Protocol (IEEE 802 .1D); i .e ., when
this option is selected, the Switch will use RSTP set to
STP forced compatibility mode) .
• RSTP Rapid Spanning Tree Protocol (IEEE 802 .1w) .
RSTP is the default .
MSTP
• Multiple Spanning Tree Protocol (IEEE 802 .1s) .
BPDU Handlng
The maximum transmission rate for
BPDUs is specified by setting the minimum interval between
the transmission of consecutive protocol messages . Select
the transmission rate from the drop-down menu . (Range:
1-10; Default: )
Path Cost Method The path cost is used to determine the
best path between devices . The path cost method is used
to determine the range of values that can be assigned to
each interface . Select the method from the drop-down
menu .
• Long Specifies 32-bit based values that range from 1-
200,000,000 . (This is the default .)
Short Specifies 16-bit based values that range from
•
1-65535 .
Prorty Bridge priority is used in selecting the root
device, root port, and designated port . The device with the
highest priority becomes the STA root device . However,
if all devices have the same priority, the device with the
lowest MAC address will then become the root device .
NOTE: Lower numeric values indicate higher
priority .
Enter a value for the bridge priority into the Priority text
field . The value must be within the range below and
in steps of 4096 . A full list of valid values are provided
below .
Default: 28
Range: 0-61440, in steps of 4096
Options: 0, 40, 812, 12288, 184, 20480, 24,
282, 28, 84, 400, 40, 412, 248,
44, 1440
Hello Tme Interval (in seconds) at which the root device
transmits a configuration message . To enable Hello Time
click the Hello Tme option and enter the required interval
value in the Hello Time field .
Default: 2
Minimum: 1
Maximum: The lower of 10 or [(Max . Message Age / 2) -1]
24-Port 10/100 + 4-Port Ggabt Swtch wth WebVew and Power over Ethernet
Configuring the Switch
Maxmum Age The maximum time (in seconds) a device
can wait without receiving a configuration message before
attempting to reconfigure . All device ports (except for
designated ports) should receive configuration messages
at regular intervals . Any port that ages out STP information
(provided in the last configuration message) becomes the
designated port for the attached LAN . If it is a root port,
a new root port is selected from among the device ports
attached to the network . (References to "ports" in this
section mean "interfaces, " which includes both ports and
LAGs .) To enable Maximum Age click the Maxmum Age
option and enter the required time (in seconds) in the
Maximum Age field .
Default: 20
Minimum: The higher of 6 or [2 x (Hello Time + 1)] .
Maximum: The lower of 40 or [2 x (Forward Delay - 1)]
Forward Delay
The maximum time (in seconds) this
device will wait before changing states (i .e ., discarding
to learning to forwarding) . This delay is required because
every device must receive information about topology
changes before it starts to forward frames . In addition,
each port needs time to listen for conflicting information
that would make it return to a discarding state; otherwise,
temporary data loops might result . To enable Forward
Delay, click the Forward Delay option and enter the
maximum time (in seconds) in the Forward Delay field .
Default: 1
Minimum: The higher of 4 or [(Max . Message Age / 2) + 1]
Maximum: 30
Modify the required attributes for STP . Click Save Settngs
to save the changes .
Spanning Tree > STP Port Settings
Spanning Tree > STP Port Settings