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3-76 Sun Fire B1600 Blade System Chassis Switch Administration Guide • June 2003
3.3.4.2 Configuring Advanced STA Settings
This section describes advanced settings for RSTP.
When configuring RSTP settings through the web interface or CLI, the following
parameters can be configured:
■ Path Cost Method – The setting that defines the range of values that can be
assigned as the path cost of each interface. The path cost is used to determine the
best path between devices in the spanning tree.
■ Long: Specifies 32-bit based values that range from 1 to 200,000,000.
■ Short: Specifies 16-bit based values that range from 1 to 65,535.
■ Transmission Limit – An RSTP parameter (between 1 and 10) that defines the rate
at which each bridge in the spanning tree transmits BPDUs to its neighbours to
inform them that the configured ports are still linked. The maximum transmission
rate for BPDUs is specified by setting the minimum interval between the
transmission of consecutive protocol messages. The default is 3.
Web Interface: Configuring Advanced STA Settings
1. Open Switch Config ⇒ Spanning Tree ⇒ Advanced Configuration.
2. Modify the required parameters.
3. Click Save.
Bridge
Maximum Age
MIB-II.
dot1dStp.
dot1dStpBridgeMaxAge
Read/write Integer
(600-4000)
centiseconds
2000
centiseconds
Bridge
Forward Delay
MIB-II.
dot1dStp.
dot1dStp-
BridgeForwardDelay
Read/write Integer
(400-3000)
centiseconds
1500
centiseconds
STA
Configuration
Changes
MIB-II.
dot1dBridge.dot1dStp.
dot1dStpTopChanges
Read only Counter
STA Last
Topology
Change
MIB-II.
dot1dBridge.dot1dStp.
dot1dStpTimeSince-
TopologyChange
Read only Integer
TABLE 3-19 MIB Variables Associated With Basic STA Settings (Continued)
Field Name MIB Variable Access Value Range Default Value