S
PANNING

T

REE

P

ROTOCOL

C

ONFIGURATION

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STP Configuration

Global settings apply to the entire switch.
Command Usage
RSTP supports connections to either STP or RSTP nodes by
monitoring the incoming protocol messages and dynamically
adjusting the type of protocol messages the RSTP node transmits,
as described below:
STP Mode – If the switch receives an 802.1D BPDU (i.e., STP
BPDU) after a port’s migration 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.
Command Attributes
Spanning Tree State — Enables or disables the Spanning
Tree. If you enable the Spanning Tree, you must complete the
other fields. (Default: enabled)
Spanning Tree Type — Specifies the type of Spanning Tree
Protocol used on the switch: (Default: RSTP)
-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 (IEEE 802.1w)
b_mgmt.book Page 57 Tuesday, July 8, 2003 5:24 PM