Administrator Guide

Version Description
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.5.1.0 Introduced on the E-Series.
spanning-tree mstp edge-port
Configures the interface as an MST edge port and optionally a Bridge Protocol Data Unit (BPDU) guard.
Z9000
Syntax
spanning-tree mstp edge-port [bpduguard [shutdown-on-violation]]
Parameters
mstp edge-port Enter the keyword mstp then the keywords edge-port to configure the
interface as a Multiple Spanning Tree edge port.
bpduguard (OPTIONAL) Enter the keyword portfast to enable Portfast to move the
interface into forwarding mode immediately after the root fails. Enter the keyword
bpduguard to disable the port when it receives a BPDU.
shutdown-
onviolation
(OPTIONAL) Enter the keywords shutdown-on-violation to hardware disable
an interface when a BPDU is received and the port is disabled.
Command Modes INTERFACE
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.7(0.0) Introduced on the S6000-ON.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.1 Introduced on the S4810.
8.2.1.0 Introduced the hardware shutdown-on-violation option.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.5.1.0 Introduced on the E-Series.
Usage
Information
On an MSTP switch, a port configured as an edge port immediately transitions to the Forwarding state.
Only configure ports connected to end-hosts as edge ports. Consider an edge port similar to a port with
spanning-tree portfast enabled.
If you do not enable shutdown-on-violation, BPDUs are still sent to the RPM CPU.
808 Multiple Spanning Tree Protocol (MSTP)