Command Line Interface
112 1553-CNH 160 0787 Uen PA2 2005-09-23
• STP Mode – If the switch receives an 802.1D BPDU after a port’s mi-
gration delay timer expires, the switch assumes it is connected to an
802.1D bridge and starts using only 802.1D BPDUs.
• RSTP Mode – If RSTP is using 802.1D BPDUs on a port and receives
an RSTP BPDU after the migration delay expires, RSTP restarts the
migration delay timer and begins using RSTP BPDUs on that port.
Example
ecn330(config)# ecn spanning-tree mode rstp
11.6.3.5.5 path-cost-method
Use this command to configure the path cost method used for Rapid Span-
ning Tree.
Command level: ecn330(config)#.
Syntax
ecn spanning-tree path-cost-method {long|short}
Arguments:
• path-cost-method long/short – Long specifies 32-bit
based values that range from 1-200,000,000, and short specifies
16-bit based values that range from 1-65535.
Default Settings
Long
Command Usage
The path cost method is used to determine the best path between devices.
Therefore, lower values should be assigned to ports attached to faster me-
dia, and higher values assigned to ports with slower media (attached with
the spanning-tree cost command). Note that path cost takes precedence
over port priority.
Example
ecn330(config)# ecn spanning-tree path-cost-method long
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