Planet WGSW-28040 - Page 112

User’s Manual of WGSW-28040 / 28040P
112
Figure 4-6-4 Global Settings page screenshot
The page includes the following fields:
Object Description
• Enable
Enable or disable the STP function. The default value is "Disabled".
• Force Version
The STP protocol version setting. Valid values are STP-Compatible,
RSTP-Ope
ration and MSTP-Operation.
• Max Hop
This defines the initial value of remaining Hops for MSTI information generated at
the boundary of an MSTI region. It defines how many bridges a root bridge can
distribute its BPDU information. Valid values are in the range 6 to 40 hops.
• Forward Delay
The delay used by STP Bridges to transition Root and Designated Ports to
Forwarding (used in STP compatible mode). Valid values are in the range 4 to 30
seconds
-Default: 15
-Minimum: The higher of 4 or [(Max. Message Age / 2) + 1]
-Maximum: 30
• 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 200 seconds.
-Default: 20
-Minimum: The higher of 6 or [2 x (Hello Time + 1)].
-Maximum: The lower of 40 or [2 x (Forward Delay -1)]
• Tx Hold Count
The number of BPDU's a bridge port can send per second. When exceeded,
transmission of the next BPDU will be delayed. Valid values are in the range 1 to
10 BPDU's per second.